# Canvas (ChatGPT)

> Source: https://aiwiki.ai/wiki/chatgpt_canvas
> Updated: 2026-06-27
> Categories: AI Tools & Products, ChatGPT, OpenAI
> From AI Wiki (https://aiwiki.ai), a free encyclopedia of artificial intelligence. Quote with attribution.

**Canvas** is a [ChatGPT](/wiki/chatgpt) interface from [OpenAI](/wiki/openai) that opens a writing or coding project in a separate side panel next to the chat thread, so the generated text or code becomes a persistent document the user can edit directly. Instead of revising work through the back and forth of a conversation, users can type into the canvas window, highlight specific passages for targeted edits, and apply one click shortcuts (such as adjusting length, changing reading level, fixing bugs, or porting code to another language). OpenAI launched canvas in beta on October 3, 2024, built on the [GPT-4o](/wiki/gpt_4o) model, and made it generally available to all ChatGPT users, including the free tier, on December 10, 2024 during the company's "12 Days of OpenAI" series.[1][2][3] It is widely compared to Anthropic's [Claude Artifacts](/wiki/claude_artifacts), released in June 2024, and to [Canvas in Gemini](/wiki/gemini_canvas), both of which present generated content in a dedicated workspace.[2]

Canvas is a user interface feature rather than a model. The behaviors that drive it, such as deciding when to open a canvas or how to apply an edit, were trained into the underlying GPT-4o model; the canvas window itself is the presentation layer through which that collaboration takes place.[1]

## What is ChatGPT Canvas?

Canvas addresses a limitation of the standard chat format, in which a long document or code file produced by ChatGPT can only be revised by sending further messages and receiving a new copy of the whole output each time. When canvas is active, ChatGPT's response appears in a panel beside the conversation, and the text or code becomes a persistent, editable object. Users can type into it directly, select a portion of the content to comment on or change, and ask ChatGPT to rewrite only the highlighted section while leaving the rest untouched.[1][4]

OpenAI described canvas as the first major update to ChatGPT's interface since the product launched in 2022, and as "a new way of working with ChatGPT, going beyond the back-and-forth of a conversation, to bring the best ideas to life."[1] Daniel Levine, a product manager at OpenAI, told TechCrunch that the side window is "just a more natural interface for collaborating with ChatGPT."[2] The feature is broadly comparable to Anthropic's Claude Artifacts, released in June 2024, and to Canvas in Gemini, both of which present generated content in a dedicated workspace.[2]

Canvas includes a version history. Toolbar arrows let a user move between earlier and later versions of the document, a "show changes" control (represented by a clock icon) marks deletions in red and additions in green, and a "restore this version" option reverts the canvas to a previous state.[4] These controls give the side window some of the affordances of a conventional editor, so that revisions can be reviewed and undone rather than lost in the flow of a conversation. A finished canvas can also be copied out of the window for use elsewhere.[4]

Canvas can be opened in two ways. ChatGPT may open one automatically when it judges that a request, such as drafting a long document or working through a coding problem, calls for a dedicated workspace. A user can also trigger it explicitly, for example by typing a phrase such as "use canvas." During the beta period a "GPT-4o with canvas" entry in the model picker served the same purpose, an extra step that was removed once the feature became part of the default GPT-4o experience.[1][2][3]

## What can you do in Canvas when writing?

For prose, canvas exposes a menu of one click shortcuts that appears at the lower right of the window, in addition to free form requests typed into the chat. ChatGPT can also make inline suggestions that the user accepts or rejects, and the length of a document can be adjusted along a slider.[1][4] The writing shortcuts are summarized below.

| Writing shortcut | Function |
| --- | --- |
| Suggest edits | ChatGPT adds inline suggestions and comments to improve the text |
| Adjust the length | Shortens or lengthens the document |
| Change reading level | Adjusts the reading level along a range from Kindergarten to Graduate School |
| Add final polish | Checks grammar, clarity, and consistency for a finished draft |
| Add emojis | Adds emojis for emphasis and color |

Reviewers have generally welcomed the document style workspace for tasks such as drafting and revising, noting that it removes the friction of repeatedly copying text in and out of the chat. Critics at launch pointed to a limited editor and the absence of real time co-editing between multiple people.[5]

## What can you do in Canvas when coding?

Canvas applies the same side window model to programming. Code is displayed with syntax highlighting, and a separate set of shortcuts supports common editing and debugging actions. As with writing, a user can highlight a span of code and ask for a localized change.[1][4] The coding shortcuts are summarized below.

| Coding shortcut | Function |
| --- | --- |
| Review code | Provides inline suggestions to improve the code, which the user can approve |
| Add logs | Inserts logging or print statements to aid debugging |
| Add comments | Adds explanatory comments to the code |
| Fix bugs | Detects and rewrites problematic code to resolve errors |
| Port to a language | Translates the code into JavaScript, TypeScript, Python, Java, C++, or PHP |

With the December 2024 general availability update, canvas gained the ability to run Python code directly inside the canvas window and display the results, including text output and generated graphics, without leaving ChatGPT. ChatGPT can read console errors from a run and propose fixes, creating a tighter edit and test loop. The execution happens in the browser through a WebAssembly based Python environment, which is distinct from the server side [Code Interpreter](/wiki/code_interpreter) tool that ChatGPT also offers.[2][3][6]

## When was Canvas released and who can use it?

At launch on October 3, 2024, canvas was a beta feature reserved for paying tiers, and users selected "GPT-4o with canvas" from the model picker or typed a request such as "use canvas" to invoke it; ChatGPT could also open a canvas automatically when it judged that a task, such as a long document or a coding problem, would benefit from one. With the December update the feature was folded into the default GPT-4o experience, removing the separate model picker entry, and was extended to every ChatGPT account. At that point canvas was available on the web and on the ChatGPT desktop app for Windows.[1][2][3] The principal milestones are summarized below.

| Date | Milestone |
| --- | --- |
| October 3, 2024 | Canvas launches in beta for ChatGPT Plus and Team users worldwide, built with GPT-4o[1] |
| Week of October 7, 2024 | Access extended to ChatGPT Enterprise and Edu users[1][2] |
| December 10, 2024 | General availability on Day 4 of "12 Days of OpenAI"; rolled out to all users including the free tier, enabled by default in GPT-4o, with in browser Python execution and support inside custom GPTs[3][6] |

The December release also brought canvas to custom GPTs, the user built versions of ChatGPT. Canvas is enabled by default for newly created custom GPTs, while existing ones can have it turned on through their configuration.[3][6]

## How does Canvas work, and how is it different from regular ChatGPT?

Canvas is a product surface built on top of GPT-4o rather than a separate model. OpenAI has said it trained GPT-4o to act as a collaborator that knows "when to open a canvas, make targeted edits, and fully rewrite," and to decide when a request is better served by an inline chat reply than by opening the side window.[1] To teach these behaviors, OpenAI's research team used synthetic data generation techniques, including distilling outputs from its o1-preview model, to post-train GPT-4o for its core canvas actions.[1] OpenAI reported that the trained model triggers the canvas decision boundary correctly 83% of the time on writing tasks and 94% of the time on coding tasks, compared with a baseline zero-shot GPT-4o working from prompted instructions, and that it outperforms that prompted baseline on targeted edits by 18%.[1]

When a canvas is open, the model can operate on the document in several ways: rewriting the entire contents, applying a change to only a highlighted selection, or attaching inline suggestions and comments that the user reviews. By default the model favors a full rewrite, but it switches to a targeted edit when the user explicitly selects text through the interface. The one click shortcuts map to predefined instructions for these operations, such as shifting the reading level or porting code to another language.[1][4]

This design distinguishes canvas, the editable workspace and its controls, from the model that performs the work. The same GPT-4o model powers ordinary ChatGPT conversations, where replies stream into the chat thread and a long output must be regenerated wholesale to change it; canvas instead adds a structured, persistent document and a set of editing affordances around it, so changes can be made in place and tracked over versions. The in browser Python feature added in December is likewise a capability of the canvas surface, separate from the cloud based Code Interpreter sandbox.[1][2][6]

## How was Canvas received?

Coverage of canvas was largely positive, framing it as a meaningful step in making ChatGPT useful for sustained writing and coding work rather than one off answers. Technology press noted that the side by side layout reduced the copy and paste friction of the chat only workflow and drew comparisons to Anthropic's Claude Artifacts and to coding focused tools such as Cursor.[2][5] Hands on reviewers praised the convenience of the shortcuts and version history for drafting and editing, while some described the early editor as limited or occasionally glitchy and pointed to the lack of multi user co-editing as a gap relative to collaborative document tools.[5] Observers also placed canvas within a broader trend, accelerating through 2024, of AI chat assistants adding dedicated workspaces for generated artifacts.[2][3]

## References

1. OpenAI, "Introducing canvas," October 3, 2024. https://openai.com/index/introducing-canvas/
2. Kyle Wiggers, "OpenAI launches new 'Canvas' ChatGPT interface tailored to writing and coding projects," TechCrunch, October 3, 2024. https://techcrunch.com/2024/10/03/openai-launches-new-canvas-chatgpt-interface-tailored-to-writing-and-coding-projects/
3. Carl Franzen, "OpenAI expands ChatGPT Canvas to all users," VentureBeat, December 10, 2024. https://venturebeat.com/ai/openai-expands-chatgpt-canvas-to-all-users
4. OpenAI Help Center, "What is the canvas feature in ChatGPT and how do I use it?" https://help.openai.com/en/articles/9930697-what-is-the-canvas-feature-in-chatgpt-and-how-do-i-use-it
5. "OpenAI's ChatGPT Canvas: reception and reviews," Tom's Guide and Lunary, 2024-2025. https://www.tomsguide.com/ai/chatgpt/openai-announces-official-launch-of-canvas-for-writing-and-coding-heres-whats-new
6. WinBuzzer, "OpenAI Rolls Out Canvas to All ChatGPT Users; Integrates Python Execution and Custom GPTs," December 11, 2024. https://winbuzzer.com/2024/12/11/openai-rolls-out-canvas-to-all-chatgpt-users-integrates-python-execution-and-custom-gpts-xcxwbn/