Antigravity (Google)

Antigravity is an agentic software development platform from Google, launched in public preview on 18 November 2025 alongside the release of gemini 3 pro.^[1][2] Built as a heavily modified fork of Visual Studio Code, Antigravity combines a conventional AI-powered editor with an "agent manager" surface that orchestrates autonomous agents across an integrated code editor, terminal, and Chromium browser.^[1][3] It was built by a Google DeepMind team that included former leaders of windsurf: its CEO Varun Mohan, co-founder Douglas Chen, and top researchers Google hired in a US$2.4 billion licensing-and-talent deal in July 2025.^[13] The platform is Google's direct response to AI-first development tools such as cursor, Windsurf, and claude code, and is positioned as the showcase environment for Gemini 3's agentic and coding capabilities.^[4][2] The original IDE launched with model choice across Google's Gemini 3 Pro, Anthropic's claude sonnet 4 5, and OpenAI's GPT-OSS, and launched free for individuals during public preview.^[1][3] At Google I/O 2026 on 19 May 2026, Google announced Google Antigravity 2.0 as a new, separate desktop command-center application without an IDE.^[16][17] Google also announced a CLI, an SDK, a managed Antigravity Agent in the Gemini API, and Gemini Enterprise access as distinct surfaces in the wider Antigravity ecosystem.^[5][6][25] Between July and October 2026 Google added editor extensions, Remote Control, custom agents and a plugin marketplace, and its site now calls the 2.0 desktop command center the "Antigravity App".^[40][46][49] On 13 October 2026 Google began rolling out Gemini 4 Argon in the Antigravity App and the Antigravity CLI for Google AI Ultra subscribers, and on 15 October it extended the rollout to paid Google AI Pro subscribers.^[28][30][31]

Overview

The original Antigravity IDE is built around what Google calls an "agent-first" interface model.^[1] Rather than treating an AI assistant as a sidebar inside an editor, it places autonomous agents at the center of the developer workflow and presents two primary views: an Editor view, which resembles a conventional IDE with tab completions and inline commands, and a Manager view, a dashboard-style surface where developers queue tasks, spawn agents, and monitor parallel work.^[1][7] Each task delegated to the platform produces a set of verifiable outputs that Antigravity calls Artifacts, including task lists, implementation plans, screenshots, and browser recordings.^[1][8]

The original IDE is available for macOS, Windows, and Linux as a native desktop application.^[1][3] Its underlying editor is a fork of Visual Studio Code, similar to the architecture used by Cursor and the Windsurf editor.^[3][7] Google Antigravity 2.0 is also available on those desktop platforms, but it is a separate command center with no embedded editor. Google recommends using it alongside an IDE when developers want both direct editing and asynchronous agent orchestration.^[16][17]

Google's pricing page describes Antigravity as generally available. In July 2026 the US$0 Individual plan included basic weekly rate limits, unlimited tab completions, unlimited command requests, and access to listed Google, Anthropic, and OpenAI models.^[18] As of 27 October 2026, the same plan is described as including "access to a variety of agent models", and Google's model documentation marks the Claude 4.6 models and GPT-OSS-120b offered on the free tier for removal. The page gave the date as 2 November 2026 until early November, when Google changed it to "November 18, 2026."^[39][36][59] The historical public preview and its rate limits remain relevant to the original November 2025 launch, but they no longer describe the product's current release status.

History

Origins and launch

Google announced Antigravity on 18 November 2025, the same day it released gemini 3 pro across the Gemini API, Google AI Studio, and vertex ai.^[2][1] The launch was timed to demonstrate the new model's agentic capabilities in a developer-facing product. Google's blog post introducing Gemini 3 specifically called out Antigravity as the showcase environment for the model's tool-use behavior and pointed to a Terminal-Bench 2.0 score of 54.2% as evidence of the model's ability to operate a computer via a terminal.^[2]

A Developers Blog post titled "Build with Google Antigravity, our new agentic development platform" introduced the product on the same day.^[1] The post described the platform as "a development platform that combines a familiar, AI-powered coding experience with a new agent-first interface" and framed its central design idea with the line, "Agents shouldn't just be chatbots in a sidebar; they should have their own dedicated space to work."^[1]

The product was made available at antigravity.google as a no-cost public preview for macOS, Windows, and Linux.^[2]

Who built Antigravity? The Windsurf connection

Antigravity was built by a Google DeepMind team that included Windsurf's former leadership. Windsurf is the AI coding editor formerly known as Codeium. On 11 July 2025, Google agreed to pay US$2.4 billion for a non-exclusive license to Windsurf's technology and to hire the startup's CEO, Varun Mohan, its co-founder Douglas Chen, and several of its top researchers into google deepmind.^[13] The arrangement, a so-called "reverse acquihire," followed the collapse of a reported US$3 billion acquisition of Windsurf by openai.^[13] A Google spokesperson, Chris Pappas, said the company was "excited to welcome some top AI coding talent from Windsurf's team to Google DeepMind to advance our work in agentic coding."^[13] Most of Windsurf's roughly 250-person staff did not move to Google and continued the product independently; the remainder of the company was subsequently acquired by Cognition AI, the maker of the Devin coding agent.^[58]

Early adopter reception

Reception in the days following launch was mixed. DevClass reported that some early adopters exhausted their free credits within roughly 20 minutes of use, with no in-product purchase path available at that point, and that the service produced "Agent taking unexpectedly long to load" and "Agent terminated due to error" messages citing model provider overload.^[9] DevClass also noted that agents could automate a browser to try out interactions and present screenshots, and that work could be parallelized across agents.^[9]

Security disclosure and patch

Researchers at Pillar Security privately reported a prompt-injection vulnerability in Antigravity's find_by_name file-search tool to Google on 7 January 2026, and disclosed it publicly on 20 April 2026.^[10][11] The tool passed the value of its Pattern parameter into the underlying fd command-line utility without argument termination, allowing an attacker to inject command-line flags. By supplying the -X (exec-batch) flag, the exploit could escalate a routine file search into arbitrary command execution, and it could be triggered through indirect prompt injection from a document the agent was asked to read.^[10][11] Because find_by_name was classified as a native tool rather than a shell command, the existing Secure Mode protections did not block the invocation; Pillar reported that the exploit worked "with both Secure Mode enabled and Auto Execution disabled," the most restrictive configuration available.^[10] The researchers wrote that "native tool invocations are executed by the agent directly, before Secure Mode's command-level restrictions are evaluated," so "the security boundary that Secure Mode enforces simply never sees this call."^[10] Google marked the issue fixed on 28 February 2026 and awarded a bounty through its AI Vulnerability Reward Program.^[10][11] The case became an early reference point for discussions of prompt injection in agentic IDEs.

Antigravity 2.0

At Google I/O 2026 on 19 May 2026, Google announced Google Antigravity 2.0, a standalone command-center application for macOS, Linux, and Windows.^[16][17] Despite the version number, it is not a refreshed edition of the original VS Code-derived IDE. It is a separate app with no embedded editor, built around the asynchronous task-management ideas of the original Agent Manager.^[16] Existing IDE installations automatically updated to 2.0 and offered users a choice to keep the IDE. Google said both products would remain available for the time being, with a later plan to remove Agent Manager from the IDE and leave it as an agent-powered editor.^[16]

The 2.0 app added dynamic subagents, asynchronous background tasks, scheduled tasks, Projects that can span several folders, JSON lifecycle hooks, native Git worktree support, slash commands, and live voice transcription.^[16][19] A subagent inherits its parent agent's tool configuration and security permissions and cannot gain broader authority. Antigravity can also create isolated worktrees automatically for subagents so that parallel changes do not share one working tree.^[19] Scheduled tasks used Gemini 3.5 Flash at launch, and live voice transcription was available across subscription tiers.^[19]

Google introduced several related but separate surfaces at the same event: Antigravity CLI, an Apache-licensed Python SDK released as a research preview, a managed Antigravity Agent in the Gemini API, and enterprise access through the Gemini Enterprise Agent Platform.^{[5][20][21][22]} These products share parts of the Antigravity agent harness, but they are not modes contained inside the 2.0 desktop app. The CLI is a terminal interface, the SDK embeds the harness in Python applications, and the managed API surface runs an agent in a Google-hosted Linux environment.^[20][21][23]

The 2.0 announcement also introduced a Google AI Ultra subscription priced at US$100 per month, with five times the Antigravity usage limits of Google AI Pro at launch.^[5][6][25] The default Antigravity 2.0 model at launch was Gemini 3.5 Flash, which Google said outperformed Gemini 3.1 Pro across almost all benchmarks while running four times faster than other frontier models.^[5][14]

Transition from Gemini CLI

On the same day as Antigravity 2.0, Google published a transition notice announcing that gemini cli would stop serving requests for consumer (Google AI Pro, AI Ultra, and free) users on 18 June 2026, with users redirected to Antigravity CLI.^[12] Enterprise customers with Standard or Enterprise licenses retained access to Gemini CLI alongside the new tooling.^[12] Antigravity CLI was rewritten in Go, designed for asynchronous workflows, and shared an agent harness with the Antigravity 2.0 desktop application.^[12][6] Existing Gemini CLI features including Agent Skills, Hooks, Subagents, and Extensions were carried over as Antigravity plugins.^[12]

July to October 2026 releases

After I/O, Google shipped frequent releases across four surfaces: the desktop app, the CLI, IDE extensions, and the Python SDK. Its public changelog tracks each one separately.^[40] The original VS Code-derived Antigravity IDE had no listed update between v2.5.5 (13 August 2026) and v2.6.0 (26 October 2026), which added Gemini 4 Argon and a refreshed agent interface to the IDE.^[40] By October, Google's website and changelog referred to the 2.0 desktop command center as the "Antigravity App".^[40][29]

Google released three Flash models into Antigravity in six weeks. Its 1 September post called Gemini 3.8 Flash "our third Flash release in just six weeks" and said 3.7 Flash remained available "for workflows that prioritize compute efficiency."^[43] For Gemini 3.7 Flash, Google reported DeepSWE v1.1 scores of 65.3% against 49.0% for 3.6 Flash and FrontierCode 1.1 Main scores of 43.6% against 34.4%. It announced an introductory price of US$0.75 per million input tokens and US$3.75 per million output tokens through 31 December 2026, rising to US$1.50 and US$7.50 from 1 January 2027.^[42] These are Google's own benchmark figures.

The 20 August enterprise announcement bundled Antigravity into Gemini Enterprise Standard and Plus licenses. It listed administrator controls including workspace sandboxing, restrictions on browser and MCP server permissions, monthly budget caps set in Google Cloud Billing, pooled quotas, capped overages, and one-toggle audit logging.^[45] Google said AirAsia teams "now generate over 50% of their production QA code using Antigravity."^[45] The New Stack reported that the Visual Studio 2026 extension was in preview at launch and that controls for individual users and teams were planned for later in the year.^[48] Google's original extensions post named VS Code, Visual Studio, Zed and JetBrains.^[47] The current version adds Xcode, onboarded through the Intelligence settings panel in Xcode 27 beta 6 or later.^[46]

Gemini 4 Argon in Antigravity

Google announced Gemini 4 Argon on 30 September 2026 and widened its availability on 13 October.^[56][33] That day the @antigravity account posted: "Rolling out now to Google AI Ultra subscribers, try it in the Antigravity app and the Antigravity CLI."^[28] Google's Keyword announcement likewise listed availability "for Google AI Ultra subscribers in Google Antigravity."^[33] The Antigravity blog post published the same day originally said the model was rolling out "for Google AI Ultra subscribers", eligible Gemini Enterprise subscriptions, and the Gemini API.^[30]

On 15 October the @antigravity account said Google was "rolling out Gemini 4 Argon in Antigravity to paid Google AI Pro subscribers today," adding: "We've rolled out a separate weekly-only Argon quota for Pro on top of the existing Gemini bucket for 3.8 Flash."^[31] 9to5Google reported the same day that the model was rolling out to AI Pro and AI Ultra subscribers and that it could see the model live.^[32] Google later revised its 13 October blog post to read "Google AI Pro and Ultra subscribers" without adding an update note; an archived copy from 13 October shows the earlier wording.^[29][30] As of 27 October 2026, Google's model documentation lists Argon for Google AI Pro ("Available with paid Google AI Pro plans or on trial with eligible premium devices"), Google AI Ultra and Enterprise, but not for the Free and Google AI Plus tiers.^[36]

Google reported results from internal use. The figures are Google's own and have not been independently measured, and its sources word them differently:

The Antigravity blog said that "over 100K users across Alphabet rely on Argon inside our internal version of Antigravity each month." It also said that "over half of Cloud sales, almost half of finance, and over a third of business and operations Googlers" were using Antigravity.^[29] Its examples include halving the CPU footprint of YouTube's comments frontend and, from a queue of 134 open bug reports, closing 97 stale or duplicate ones in under three hours. In another example, Argon found four critical security bugs in a batch of access-control changes where, according to Google, two earlier frontier models had found none.^[29] The Keyword post offered 10,000 scientists the highest Antigravity usage tier free for six months, "subject to eligibility, capacity, and selection."^[33] A separate post said Antigravity's "agentic coding interface" was now available directly in the Gemini macOS app.^[34] On 26 October, Google's Antigravity and Research teams described using Argon with Teamwork to build an RDMA-based graph system and custom Pallas TPU kernels. The post reports up to 185x less high-bandwidth memory use and 8-15x faster GNN passes on TPU v6e.^[35] The Gemini 4 Argon article covers the model itself, its benchmarks and its API pricing.

Architecture

Editor and agent surfaces

The original Antigravity IDE presents two primary surfaces.^[1][7] The Editor view is a conventional VS Code-derived IDE with file tree, multi-pane editing, tab completions, and inline command boxes. It is intended for synchronous work where a developer wants to drive cursor placement and review each change. The Manager view is a separate workspace that lists active agents, their queued tasks, and their generated Artifacts.^[1][7] Several agents can run simultaneously, each working on a different task in a different workspace.^[7]

A Codecademy comparison describes the Manager view as "mission control for orchestrating multiple agents".^[7] From it, developers can dispatch new agents, inspect the state of running agents, attach feedback to in-progress Artifacts, and pause or resume specific agents.^[1][7]

Antigravity 2.0 command center

Antigravity 2.0 turns the management surface into a standalone app. Its central view starts and monitors asynchronous tasks while code can remain open in a separate editor.^[16][17] Projects group folders, settings, resources, and permissions, and one Project can span several filesystem roots.^[19] A main agent can create subagents dynamically, while native Git worktrees let those agents work in isolation and later return results to the parent task.^[19]

Antigravity CLI

The Antigravity CLI, invoked as agy, was announced on 19 May 2026 as a terminal alternative to the 2.0 desktop app. Google describes it as "the most lightweight way to invoke, monitor, and interact with Antigravity agents."^[20] The CLI and the desktop app use the same agent harness and share common settings such as agent permissions. Conversations are not shared by default, but CLI conversations can be pulled into the desktop app through an @conversation dropdown.^[20] Google says the CLI "took inspiration from core Gemini CLI product and harness components" as part of consolidating one harness across its developer surfaces.^[20]

Google's quickstart installs the CLI with a shell script on macOS and Linux (curl -fsSL https://antigravity.google/cli/install.sh | bash, placing the binary at ~/.local/bin/agy) and with PowerShell or CMD scripts on Windows.^[53] The CLI signs in through the operating system keyring or a browser OAuth flow, with a copy-and-paste code flow over SSH. It can also use Google Cloud Application Default Credentials, and since v1.1.13 (14 August 2026) it can run against the Gemini API with a GEMINI_API_KEY instead of an account session.^[54][40] Custom agents marked mainAgent: true can be launched directly, for example with agy --agent dependency-modernizer.^[44] Changelog entries after July added prebuilt Android binaries for Termux (v1.2.15, 2 October) and Auto mode (v1.3.5, 14 October). As of 5 November 2026, the latest listed CLI release is v1.4.12 from 30 October.^[40]

What are Artifacts?

Artifacts are the central mechanism Antigravity uses to mediate trust between the developer and the autonomous agent.^[1][8] Rather than emitting only a final diff, an agent working in Antigravity produces a sequence of intermediate, human-readable outputs as it proceeds with a task:

• Task lists outlining what the agent intends to do before it begins.
• Implementation plans describing the structure of upcoming code changes.
• Screenshots produced by the platform's built-in Chromium browser.
• Browser recordings showing end-to-end UI walkthroughs.
• Diff summaries describing what changed and why.

Developers can comment on any Artifact, similar to a document review, and the agent incorporates the feedback into its ongoing run rather than restarting.^[8][7]

Integrated browser and terminal

Antigravity bundles a Chromium-based browser into the platform so that agents can navigate, click, fill forms, and capture screenshots without a separate browser-control tool.^[1][7] This makes the platform an integrated ai browser agent environment in addition to a code editor. The included terminal allows agents to install dependencies, run build commands, start dev servers, and inspect logs in the same session.^[1] Google's documentation describes the typical loop as "write code for a new feature, use the terminal to launch the application, and then use the browser to test and verify that the new component is functioning as expected."^[1]

Secure Mode and isolation

The original Antigravity IDE exposes a Secure Mode that restricts network access and limits writes outside the workspace.^[10][11] As the 2026 Pillar Security disclosure demonstrated, native tool invocations were not subject to the same checks as shell commands in the initial release, and Google marked the issue fixed on 28 February 2026.^[10]

Local and hosted Antigravity surfaces have different security boundaries. For the local agent, Google's settings documentation says default filesystem access covers Project folders and ~/.gemini/antigravity; access outside those locations is an explicit opt-in.^[26] Permission rules can allow, deny, or ask about operations, with denial taking precedence, and an operating-system sandbox can add another local boundary.^[27] Antigravity 2.0 subagents inherit the main agent's tools and security permissions and receive no additional rights.^[19] Later releases added a new permissions system (v2.14.0, 15 September 2026) and file and network sandboxing on Windows (v2.15.1, 19 September 2026) to the desktop app.^[40] Custom agents can set a commandExecutionPolicy of auto, under which Google says standard test and build commands run without prompts while high-risk commands such as file deletion still require manual approval.^[44]

The resumable, sandboxed Linux environment described at I/O belongs to the managed Antigravity Agent in the Gemini API, not to local Antigravity 2.0 execution.^[23] That managed surface can keep an environment across interactions, but it remains a preview API and should not be treated as evidence that local desktop tasks run in a Google-hosted sandbox.

Knowledge base

Antigravity includes a persistent knowledge base that agents can write to and read from across sessions, used to store useful context and code snippets.^[1] Google says the feature treats learning as a core primitive and is meant to improve future tasks.^[1]

Features

Multi-file edits and planning

Antigravity agents can plan and execute changes that span multiple files, generating an implementation plan as an Artifact before applying edits.^[1][7] This pattern of plan-then-edit is shared with claude code and Cursor's Composer mode, but Antigravity makes the plan itself a first-class, commentable Artifact rather than an inline message.^[7][8]

Terminal and browser control

Through the integrated terminal, agents can install packages, start build pipelines, and run tests. Through the integrated browser, they can navigate to a local dev server, click through user flows, and capture screenshots or recordings as evidence.^[1][7] This combination is the platform's most distinctive feature compared to editor-only AI tools and is part of what makes Antigravity an agentic workflow platform rather than a code completion product.^[7]

Parallel agents

The original IDE's Manager view allows the developer to queue several tasks that run in parallel, each with its own agent.^[7] Antigravity 2.0 added dynamic subagents, where a primary agent can spawn helper agents for bounded subtasks and aggregate their results.^[16][19] The helper inherits the primary agent's tool configuration and permission boundary. Native Git worktree support can give it an isolated checkout, reducing collisions between parallel changes.^[19]

Multimodal input

Alongside text prompts, the desktop app accepts file attachments: PDF attachments arrived in June 2026, and App v2.28.0 (27 October 2026) allowed files of any type up to 20 MB.^[40]

Plugins and skills

The platform supports plugins and skills, with Antigravity 2.0 carrying over Agent Skills, Hooks, Subagents, and Extensions concepts previously used by gemini cli.^[12] Skills are reusable packages of instructions, tools and context, and can be defined globally or per workspace.^[17][21] The 2.0 app also supports MCP connections and JSON hooks that can invoke local shell scripts before or after tool calls, model calls, and other lifecycle events.^[17][19] The June 2026 desktop releases added a built-in Antigravity Guide skill that answers questions about the platform itself.^[15] On 28 September 2026 the desktop app gained a Customizations tab with a marketplace for discovering and installing plugins.^[40] Google teams then packaged custom agents into official Build with Google plugins, including a Flutter accessibility agent, a Firebase Security Rules agent, and a read-only Google Play pre-submission audit agent.^[52]

Custom agents

Custom agents, announced on 12 August 2026 for the desktop app and CLI (the CLI had added Markdown custom agents in v1.1.6 on 24 July),^[40] are Markdown files with YAML frontmatter stored in a workspace's .agents/agents/ folder or globally under ~/.gemini/config/agents/. The frontmatter sets fields such as the model, tools, skills and permission mode, and the Markdown body becomes the agent's system prompt.^[44] Google says Antigravity differs from other tools in that a custom agent can run either as the main agent, selected directly by the user, or as a subagent called by a coordinator, controlled by mainAgent and subagent flags.^[44]

Scheduled tasks and voice input

Scheduled Tasks let users define recurring or later work from the command center. At launch, these tasks ran with Gemini 3.5 Flash rather than the model selected for an ordinary interactive task.^[19] Live voice transcription converts spoken instructions to text and was made available on Free, Pro, and Ultra tiers.^[16][19] These features operate in the standalone 2.0 app and do not turn it into an IDE. On 7 October 2026 Scheduled Tasks were renamed Automations, with a Run Now option and a prompt-guided setup. From 15 October users could choose Flash Lite, Flash or Pro for an automation, though new automations still start on Flash.^[40]

Remote Control and version control

Remote Control, released on 20 August 2026, lets users connect to and drive Antigravity sessions running on their own laptops, desktops or servers from any web browser. It sends push notifications when an agent finishes a turn or needs input.^[40][49] The agent keeps access to that machine's files, build tools, credentials and environment variables.^[49] An update on 24 August added an embedded terminal and Git controls in the sidebar.^[40] The sidebar shows all changes on the current branch relative to origin/main, including edits made outside the agent, and supports staging and committing.^[50]

Teamwork

Teamwork is a multi-agent orchestration framework that Google first announced at I/O 2026. It is run with the /teamwork-preview command on paid plans.^[51] Google describes agents that "propose, critique, and refine each other's work autonomously over hours or days," organized by patterns such as iterative coding, distributed coding, long proof, self-verification and document review, which Gemini selects automatically from the prompt.^[51] Google claimed in August that Teamwork runs had solved seven open problems in mathematics and theoretical computer science and built a cycle-accurate RISC-V simulator that boots an operating system. These results are self-reported.^[51]

What models does Antigravity support?

Default models

At launch, Antigravity offered Gemini 3 Pro as its Google model, alongside Claude Sonnet 4.5 and GPT-OSS.^[1][2] Gemini 3 Flash became available in Antigravity when Google released it on 17 December 2025.^[57] Gemini 3 Pro was reported by Google to score 54.2% on Terminal-Bench 2.0, a benchmark that "tests a model's tool use ability to operate a computer via terminal," and to top the WebDev Arena leaderboard with an Elo score of 1487 at launch.^[2]

Antigravity 2.0 changed the default to Gemini 3.5 Flash, which Google released on 19 May 2026 and made the default in the Gemini app and AI Mode in Search, while also releasing it in Antigravity.^[14][5] Google said the model was tuned for speed in agentic workflows, stating that "when looking at output tokens per second, it is 4 times faster than other frontier models."^[14] Google reported that Gemini 3.5 Flash outperformed the intermediate Gemini 3.1 Pro model on coding and agentic benchmarks:

Google positioned the model at both developers and analysts, saying that "what used to take a developer days or an auditor weeks, 3.5 Flash can now help complete in a fraction of the time, often at less than half the cost of other frontier models."^[14] These are provider-reported model benchmarks, not end-to-end evaluations of Antigravity 2.0 task completion, permission behavior, security, or resistance to prompt injection.

Google then added Gemini 3.6 Flash (21 July), 3.7 Flash (13 August) and 3.8 Flash (1 September 2026) to Antigravity, followed by Gemini 4 Argon for paid tiers in October.^{[41][42][43][31]} Between 7 and 27 October 2026, Google's model documentation moved Gemini 3.7 Flash, 3.6 Flash and 3.1 Pro from all plans to Enterprise only.^[37][36] As of 27 October 2026, Google's plans documentation says all plans include Gemini models, "including Gemini 3.8 Flash", as the core agent model. The model documentation offers Low, Medium and High thinking levels and lists Nano Banana 2 as the fixed model behind the generative image tool.^[38][36]

Third-party models

Antigravity has supported third-party models since its initial release. It offered Anthropic's claude sonnet 4 5 and OpenAI's open-weight GPT-OSS at launch, and later added claude sonnet 4 6 and Claude Opus 4.6.^[1][18] In July 2026 the Individual plan listed Gemini 3.5 Flash, Gemini 3.1 Pro, Gemini 3 Flash, Claude Sonnet 4.6, Claude Opus 4.6, and gpt-oss-120b as included models.^[18] By 7 October 2026 Google's model documentation also listed Claude Sonnet 5.5 and Claude Opus 5.5 for Google AI Pro (non-trial) and Ultra subscribers. The same page marked Claude Sonnet 4.6, Claude Opus 4.6 and GPT-OSS-120b for removal on 2 November 2026.^[37] Model selection in the desktop experience is per agent or task.^[7]

As of 27 October 2026, the documentation listed the following availability by plan. By 4 November 2026 Google had moved the scheduled removal of the Claude 4.6 models and GPT-OSS-120b from 2 November to 18 November 2026, with the rest of the table unchanged:^[36][59]

For Google Cloud projects signed in with Application Default Credentials, the CLI (v1.3.6, 15 October) and the desktop app (v2.24.0) show Claude Opus 5.5 and Sonnet 5.5 only when the project has access to them.^[40]

Model routing

The managed Antigravity Agent in the Gemini API is a separate preview surface with explicit model configuration. As of July 2026, its documentation identifies antigravity-preview-05-2026 as the base agent, uses Gemini 3.6 Flash by default, and lists Gemini 3.6 Flash, Gemini 3.5 Flash, and Gemini 3.5 Flash-Lite as supported models.^[23] By October 2026 the documentation used antigravity-preview-09-2026, built with Gemini 3.8 Flash, and listed gemini-3.8-flash (default), gemini-3.6-flash and gemini-3.5-flash-lite.^[60][61] This managed-agent default does not establish the default model in the local 2.0 app.

Custom managed agents also have preview limitations. Current documentation says their schemas may change, they have no versioning or rollback, and they cannot nest subagents. The documented limit is 1,000 saved managed agents. In July 2026 antigravity-preview-05-2026 was the only supported custom-agent base; by October 2026 it had been replaced by antigravity-preview-09-2026.^[24][61] These API limits do not apply to dynamic subagents in the local 2.0 command center.

How much does Antigravity cost?

Public preview

Antigravity launched in public preview on 18 November 2025 and was free for individual users, with what Google described as "generous" rate limits.^[1][3] That preview included the original desktop IDE, Manager view, parallel agents, browser and terminal integration, and Artifacts.^[1] The current pricing page labels Antigravity generally available rather than in preview.^[18]

In July 2026 the US$0 Individual plan included basic weekly rate limits, unlimited tab completions, unlimited command requests, and the listed Google, Anthropic, and OpenAI models.^[18] As of 27 October 2026 the pricing page lists "access to a variety of agent models" instead, and the Claude 4.6 models and GPT-OSS-120b on that tier are marked for removal, a date Google moved from 2 November to 18 November 2026.^[39][36][59] Thus, the old preview terms remain launch history but no longer describe the current release status or model entitlement.

Google AI Pro

Antigravity is included in Google AI Pro, a paid consumer tier above the free plan and Google AI Plus.^[5][36] The current plan provides more generous rate limits than Individual and a flexible pool of AI credits that can be allocated to Antigravity usage.^[18] As of 27 October 2026, Google's plans documentation says Pro quota is "refreshed every five hours until the weekly limit is reached," while the free tier's quota is refreshed weekly.^[38] Gemini 4 Argon on Pro uses a separate, weekly-only quota.^[31] Pro and Ultra users can spend purchased AI credits on usage above the baseline quota, controlled by an AI Credit Overages setting.^[38]

Google AI Ultra

Google introduced Google AI Ultra for Antigravity on 19 May 2026 at US$100 per month.^[5][6] At launch, the plan provided five times the Antigravity usage limits of the Pro tier, and Google cut the price of its existing top AI Ultra tier from US$250 to US$200 per month.^[5][6][25] The current pricing page describes Ultra as the individual tier with the most generous rate limits and AI credit pool.^[18] The plans documentation lists "the highest, most generous quota, refreshed every five hours," the highest weekly rate limits, and access to third-party models for Ultra.^[38] Ultra was the first individual tier to receive Gemini 4 Argon in Antigravity, on 13 October 2026.^[28][30]

Enterprise

Organizations can access Antigravity 2.0, CLI, and SDK through the Gemini Enterprise Agent Platform and Google Cloud.^[22] At the May 2026 launch, the offering used consumption pricing and Google Cloud project integration under Google Cloud Terms, without a public per-seat price.^[18][22] Google says enterprise prompts, responses, code, and telemetry are not stored outside the customer's private environment.^[22] Additional administrator controls and IDE extensions were described as coming soon at launch, so they were not part of the initial enterprise availability.^[22] Both arrived on 20 August 2026, when Google included Antigravity in eligible Gemini Enterprise Standard and Plus subscriptions.^[45] As of 27 October 2026, the pricing page lists Gemini Enterprise Standard and Plus plans "starting at $30 USD per seat per month", a pay-as-you-go plan with no seat fee, and API access with consumption-based pricing.^[39] Gemini 4 Argon is available within Antigravity on eligible Gemini Enterprise subscriptions.^[29]

How does Antigravity compare to Cursor, Windsurf, and Claude Code?

Comparison to Cursor

cursor is the most direct predecessor in the AI-first IDE category and, like Antigravity, is built on a fork of Visual Studio Code.^[7] Cursor was first released in 2023 and emphasizes inline editing, fast tab completion, and a Composer mode for multi-file edits. Cursor allows the developer to select among GPT, Claude, and Gemini models per task.^[7] The original Antigravity IDE differs by making Agent Manager a peer to the editor, bundling a browser, and treating Artifacts as commentable, reviewable objects.^[7][8] Antigravity 2.0 goes further toward orchestration by removing the embedded editor and operating as a separate command center.^[16]

Comparison to Windsurf

windsurf (formerly Codeium's editor) is also a VS Code fork and provides Cascade, an agentic mode that performs multi-file edits, runs terminal commands, and indexes large codebases.^[7] Windsurf has positioned itself as a strong option for monorepos and enterprise codebases, with automatic codebase context retrieval as a differentiator.^[7] A Codecademy comparison credited Antigravity with browser automation and a dedicated parallel-agent surface that Windsurf then lacked.^[7] Cognition later shipped Windsurf 2.0 with an Agent Command Center and, on 2 June 2026, relaunched the editor as Devin Desktop, "the next generation of Windsurf".^[63] Notably, the two products share engineering DNA: Google built Antigravity with the Windsurf leadership and researchers it hired in July 2025, while the Windsurf product continued independently under separate ownership.^[13]

Comparison to Claude Code

claude code is Anthropic's agentic coding tool. It is not a fork of an editor: it runs in the terminal, as IDE extensions, in a desktop app and on the web.^[64] The original Antigravity product ships its own editor and browser, while Antigravity 2.0 removes the editor and keeps a dedicated command-center interface. Both product generations allow agents to drive a terminal and edit files. Anthropic's Claude models are also available inside Antigravity.^[36]

Comparison to GitHub Copilot

github copilot began as a code completion tool and has expanded into an agent mode and local, background and cloud agents.^[7] Copilot is integrated into GitHub's product surface and Microsoft's editors and tends to emphasize integration with pull requests and code review. Antigravity does not aim at the same pull-request surface and instead emphasizes long-running parallel agents working on local repositories with browser and terminal control.^[7]

Reception

Initial reception in November 2025 was mixed but oriented toward cautious enthusiasm. DevClass described Antigravity as an incremental step toward tools for AI-driven development, adding that views on its value would depend on whether developers embraced the idea of software development becoming the orchestration of agents.^[9] Reviewers praised the parallel-agent Manager view, the bundled browser, and the Artifacts model for making agent behavior more inspectable.^[7][9]

Negative coverage focused on stability and capacity issues. DevClass's own tests ran into "model provider overload" errors, and it quoted a Hacker News user who ran out of credits after about 20 minutes and "switched back to cursor".^[9] It also noted that Antigravity's terms of use warned that it "is known to have certain security limitations."^[9]

The Pillar Security disclosure in April 2026 added a security dimension to the reception of the product.^[10][11] CSO Online reported that the flaw let a prompt injection turn a file search into remote code execution despite Secure Mode, and Pillar described it as part of a pattern across agentic IDEs.^[10][11] Pillar argued that "the industry must move beyond sanitization-based controls toward execution isolation."^[10][11]

By the time of Antigravity 2.0 at Google I/O 2026, coverage had shifted toward Google's multi-surface ecosystem strategy. Reports emphasized the separate no-IDE command-center app, the CLI and SDK, competition with ChatGPT Pro and Claude Max at the US$100 price tier, and Google's decision to sunset gemini cli for consumer users in favor of Antigravity CLI.^{[5][6][12][25]}

Integration with the Google ecosystem

Antigravity is closely tied to Google's broader developer stack. Google AI Studio can export an application into Antigravity, while integrations cover Firebase backend services and Android development targets.^[5] Enterprise access runs through the Gemini Enterprise Agent Platform and Google Cloud projects.^[22] These integrations connect separate product surfaces rather than placing every capability inside the 2.0 desktop app. Since August 2026, Antigravity extensions have brought agent conversations, inline diffs and plan review into VS Code, Visual Studio, JetBrains IDEs and Zed, and later Xcode.^[46][48] Google said on 13 October 2026 that Antigravity's agentic coding interface was available directly in the Gemini macOS app.^[34]

The managed Antigravity Agent exposes the agent harness through the Gemini API so an application can start background work and resume a persistent hosted environment across interactions.^[23] It runs inside a Google-hosted Linux sandbox. Separately, App v2.29.0 (3 November 2026) began rolling out remote agents, which run conversations in a cloud project instead of on the user's computer, to Google AI Ultra and Pro subscribers.^[40] The local 2.0 command center and original IDE operate against local workspaces under their own permission settings.^[19][26]

This ecosystem alignment is one of Antigravity's differentiators relative to Cursor, Windsurf, and Claude Code.^[7][25] For organizations already using Google Cloud, the enterprise offering provides project integration, cloud-governed terms, and consumption billing.^[18][22]

Is Antigravity generally available?

Google's current pricing page describes Antigravity as generally available.^[18] As of November 2026, the Antigravity App (the 2.0 release) is available for macOS, Windows, Linux and Googlebook as a separate command-center app, while the original Antigravity IDE remains available as its own product.^[16][17] The standalone Antigravity IDE installer requires macOS 12 (Monterey) or later, 64-bit Windows 10 or later, or Linux or Googlebook with glibc 2.28 or later.^[53]

The Antigravity CLI replaced Gemini CLI for consumer Free, Google AI Pro, and Google AI Ultra users after the transition announced for 18 June 2026; eligible enterprise customers retained Gemini CLI access alongside the newer tooling.^[12] The Python SDK was introduced as a research preview rather than a generally available library.^[21] The managed Antigravity Agent and custom-agent API also remain preview features, with documented schema, versioning, and subagent limitations.^[23][24]

Google continued to ship rapid point releases through mid-2026. The June desktop updates added audio rendering, PDF attachments to Gemini messages, improved substring file search, and a built-in Antigravity Guide skill.^[15] Access is tied to a Google account and plan. Individual, Pro, and Ultra tiers offer progressively higher limits.^[18] In July 2026 the free Individual tier included the listed Anthropic and OpenAI models without a separate model-provider subscription.^[18] As of 4 November 2026, Google's documentation lists the Claude 4.6 models and GPT-OSS-120b on the free tier only until 18 November 2026 (earlier versions said 2 November), and the Claude 5.5 models only on paid Pro, Ultra and Enterprise plans.^[36][59] As of 5 November 2026, the latest changelog entries are App v2.29.0 (3 November), CLI v1.4.12 (30 October), SDK v0.1.23 (26 October) and IDE v2.6.0 (26 October 2026).^[40]

Continue reading

• Google AI StudioGoogle AI Studio is Google's free, web-based developer tool for prototyping with the Gemini family of models and getting a Gemini API key in seconds.Mentioned twice above
• GGoogle Vertex AIGoogle Vertex AI is the unified machine learning and generative artificial intelligence platform offered by Google Cloud, announced at Google I/O on May 18Listed in See also
• Gemini 2.5 ProGemini 2.5 Pro is the flagship reasoning large language model of Google's Gemini 2.5 family, developed by Google DeepMind and first released as an experimental preview on March 25, 2025Listed in See also
• VVibe codingVibe coding is a software development practice in which a programmer describes their intent in plain natural language and relies on a large language model (LLM) to generate the corresponding source code.Listed in See also
• GoogleGoogle LLC is a United States technology company and the largest operating business within Alphabet Inc. Its activities include internet search, online advertising, video, mobile and web platforms, consumer…Mentioned 146 times above
• Gemini 3Gemini 3 is the third major generation of the Gemini family of multimodal models from Google DeepMind, launched on November 18, 2025 with Gemini 3 Pro as the flagship and described by Google as "our most…Mentioned 35 times above

More to read

• Windsurf (software)
• Cursor (code editor)
• Gemini 4 Argon
• gpt-oss
• Claude Code
• Gemini 3 Pro

Topics:AI AgentsAI Code GenerationDeveloper ToolsGoogle

See also

• cursor
• windsurf
• claude code
• github copilot
• gemini 3 pro
• gemini 2 5 pro
• gemini cli
• google deepmind
• google ai studio
• google vertex ai
• openai
• agentic workflow
• ai browser agent
• prompt injection
• indirect prompt injection
• vibe coding
• claude sonnet 4 5

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