ChatGPT Search is a web search feature built into ChatGPT, the conversational artificial intelligence product from OpenAI. It lets ChatGPT retrieve up-to-date information from the open web and answer questions in natural language while displaying in-line citations and links to the underlying sources. The capability began as a standalone, temporary research prototype called SearchGPT, announced on July 25, 2024, and was folded into ChatGPT as "ChatGPT search" on October 31, 2024. [1][2] OpenAI subsequently widened access in stages, reaching all logged-in free users in December 2024 and removing the sign-in requirement entirely in February 2025. [3][4] The product has been widely described as OpenAI's most direct challenge to Google Search. [5]

Background

OpenAI released ChatGPT in November 2022 as a conversational interface to its large language models. Early versions answered from parameters learned during training and had a fixed knowledge cutoff, so they could not reliably report current events, live sports scores, or freshly published material. To address this, OpenAI experimented with browsing plug-ins and connected tools through 2023, but these were uneven in quality and not enabled by default. By mid-2024, several competitors, including the AI search startup Perplexity and Microsoft's Bing Chat (later Copilot), were combining generative models with live web retrieval, and Google had begun surfacing "AI Overviews" atop its results. Against this backdrop, OpenAI moved to build a dedicated, native search experience. [5]

SearchGPT prototype

On July 25, 2024, OpenAI announced SearchGPT, which it described as "a temporary prototype of new AI search features that give you fast and timely answers with clear and relevant sources." [1] The company positioned the tool as combining "the strength of our AI models with information from the web to give you fast and timely answers with clear and relevant sources." Rather than returning only a list of blue links, SearchGPT answered questions directly with up-to-date information and provided clear links to the sites it drew on, along with the ability to ask follow-up questions in a continuing conversation. [1]

SearchGPT launched as a closed test to a small group, reported as roughly 10,000 users, plus publisher partners, with a waitlist for additional access. [1][6] OpenAI was explicit that the prototype was an experiment intended to gather feedback, stating that "while this prototype is temporary, we plan to integrate the best of these features directly into ChatGPT in the future." [1] At the same time, the company introduced controls letting publishers manage how their sites appeared. OpenAI stressed that search was kept separate from the data used to train its generative foundation models, so a site could appear in SearchGPT results even if it opted out of model training. [1]

ChatGPT search

OpenAI delivered on its integration plan on October 31, 2024, when it published "Introducing ChatGPT search" and announced that "ChatGPT can now search the web in a much better way than before." [2] The feature blends ChatGPT's natural-language interface with current information such as news, sports scores, and stock quotes. ChatGPT decides on its own whether a given prompt warrants a web lookup, and users can also force a search by clicking a web-search icon in the message box. Answers appear with links to relevant sources and a sidebar that lists the pages used, and the conversation supports follow-up questions that retain context. [2]

The rollout began with paid and waitlisted users. At launch, all ChatGPT Plus and Team subscribers, together with users from the SearchGPT waitlist, received access, and OpenAI said Enterprise and Education (Edu) users would follow "in the coming weeks." [2] OpenAI also released a Chrome extension that let users make ChatGPT search their default search engine in the browser. [4][8]

How it works

ChatGPT search runs on a fine-tuned version of GPT-4o, OpenAI's multimodal flagship model. According to OpenAI, the search model was created with post-training techniques, most importantly the distillation of outputs from the o1-preview reasoning model. [2][7] When a query calls for fresh information, the system retrieves results, synthesizes an answer, and attaches citations that link back to the original publishers; a sources panel lets users inspect and open each referenced page. [2]

To gather and index web content for the feature, OpenAI operates a dedicated crawler named OAI-SearchBot. The company distinguishes it from its training-data crawler, GPTBot: OAI-SearchBot is used to surface and link to sites in search results and does not collect content to train OpenAI's foundation models. [9] The crawler identifies itself with a user-agent string referencing "OAI-SearchBot/1.0" and publishes its IP ranges so that site operators can verify and, via robots.txt, allow or block it. [9]

ChatGPT search does not maintain a full independent web index. OpenAI has said it relies on a set of services, including third-party search providers, with Microsoft Bing identified as an important one, supplemented by direct content feeds from media partners. [7] In a public discussion, an OpenAI engineering leader stated, "We use a set of services and Bing is an important one." [7] OpenAI has said it does not currently place advertisements in ChatGPT search results. [5]

Publisher partnerships

ChatGPT search draws in part on licensed content from news organizations with which OpenAI signed agreements, allowing it to show summaries, excerpts, and direct links to those outlets with attribution. Confirmed partners whose content can appear include The Associated Press, Axel Springer (publisher of Politico and Business Insider), Condé Nast, Dotdash Meredith, the Financial Times, Future, the Italian group GEDI, Hearst, Le Monde, News Corp, Spain's Prisa Media, Reuters, The Atlantic, Time, and Vox Media. [2][10] OpenAI later added a partnership with Axios as well. [10]

These deals typically grant OpenAI the right to use the publishers' material while committing OpenAI to display summaries with attribution and links back to the source articles. The agreements were struck against a contentious backdrop: some publishers, most prominently The New York Times, instead sued OpenAI over the use of their articles, making the licensing-versus-litigation split a defining feature of the news industry's response to generative AI. [10]

Availability timeline

OpenAI expanded ChatGPT search in clearly defined stages, moving from a closed prototype to a feature usable without any account.

Date	Milestone	Who gained access
July 25, 2024	SearchGPT prototype announced (temporary)	Small test group (about 10,000 users) plus publishers; waitlist for others [1][6]
October 31, 2024	"ChatGPT search" integrated into ChatGPT	ChatGPT Plus and Team users, plus SearchGPT waitlist users; Enterprise and Edu "in the coming weeks" [2]
December 16, 2024	Search opened to free tier	All logged-in free users in regions where ChatGPT is available [3]
February 5, 2025	Sign-in requirement removed	Everyone, including logged-out users with no account, rolling out over the following days [4]

On December 16, 2024, OpenAI's chief product officer Kevin Weil announced that the company was "bringing search to all logged-in free users of ChatGPT," extending the feature to hundreds of millions of users; access required being logged in but not a paid or corporate account. [3] On February 5, 2025, OpenAI removed the login requirement, so that anyone could use ChatGPT search by visiting chatgpt.com without an account, with the change rolling out to logged-out users over the following days. [4]

OpenAI later brought web search to its developer platform. On March 12, 2025, alongside its new Responses API, the company released a built-in web search tool that it said is "powered by the same model used for ChatGPT search." [11] The capability is also exposed through dedicated Chat Completions models named gpt-4o-search-preview and gpt-4o-mini-search-preview, which return answers with links to sources such as news articles and blog posts. [11][12] OpenAI reported that GPT-4o search preview and GPT-4o mini search preview scored 90% and 88% respectively on SimpleQA, a benchmark for short factual questions. [11]

Reception and competition with Google

Commentary framed ChatGPT search primarily as a bid to compete with Google Search, which has long dominated the market, as well as with Microsoft's Bing and AI-native search tools such as Perplexity. [5][13] Observers noted that, unlike a conventional engine returning ranked links, ChatGPT search produces a direct, conversational answer with citations, which some found faster for research and quick questions, while others raised concerns about the accuracy of generated answers and the effect on publisher web traffic. [5] OpenAI's release of a Chrome extension to set ChatGPT as the default search engine reinforced the comparison to Google. [4][8]

The feature also fits within OpenAI's broader push into web-grounded products. The company's deep research agent, introduced in early 2025, performs multi-step browsing and synthesis for in-depth reports, complementing the quick-answer focus of ChatGPT search. By exposing search through the API in March 2025, OpenAI extended the capability beyond the ChatGPT interface so that third-party developers could build their own search-grounded applications. [11]

References

OpenAI, "SearchGPT Prototype," July 25, 2024. https://openai.com/index/searchgpt-prototype/
OpenAI, "Introducing ChatGPT search," October 31, 2024. https://openai.com/index/introducing-chatgpt-search/
Fortune, "OpenAI opens ChatGPT internet search to all users in escalating challenge to Google's dominance," December 17, 2024. https://fortune.com/2024/12/17/openai-opens-chatgpt-internet-search-to-all-users-google/
Engadget, "ChatGPT search no longer requires an OpenAI account to use," February 5, 2025. https://www.engadget.com/ai/chatgpt-search-no-longer-requires-an-openai-account-to-use-205538282.html
CNBC, "OpenAI launches ChatGPT search, competing with Google and Microsoft," October 31, 2024. https://www.cnbc.com/2024/10/31/openai-launches-chatgpt-search-competing-with-google-and-perplexity.html
Axios, "OpenAI starts testing a new prototype of an AI search tool called SearchGPT," July 25, 2024. https://www.axios.com/2024/07/25/openai-searchgpt-new-ai-search-tool
TechTarget, "ChatGPT search: Details about OpenAI's search engine." https://www.techtarget.com/whatis/feature/SearchGPT-explained-Details-about-OpenAIs-search-engine
ChatGPT search, Chrome Web Store. https://chromewebstore.google.com/detail/chatgpt-search/ejcfepkfckglbgocfkanmcdngdijcgld
OpenAI, "Overview of OpenAI Crawlers." https://developers.openai.com/api/docs/bots
Digiday, "2024 in review: A timeline of the major deals between publishers and AI companies." https://digiday.com/media/2024-in-review-a-timeline-of-the-major-deals-between-publishers-and-ai-companies/
OpenAI, "New tools for building agents," March 12, 2025. https://openai.com/index/new-tools-for-building-agents/
OpenAI API, "GPT-4o Search Preview Model." https://developers.openai.com/api/docs/models/gpt-4o-search-preview
TechRepublic, "OpenAI Launches ChatGPT Search, a Direct Competitor to Google." https://www.techrepublic.com/article/searchgpt-openai-chatgpt-search-engine/

Editing: ChatGPT Search