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Heroes of Might and Magic 3ChatGPT Atlas
ChatGPT Atlas was OpenAI's web browser with ChatGPT built in, launched on macOS on Oct 21, 2025. OpenAI deprecated it on Jul 9, 2026 and it stopped working on Aug 9, 2026; the ChatGPT desktop app's built-in browser and the ChatGPT browser extension replaced it.
ChatGPT Atlas is discontinued: it stopped working on Aug 9, 2026, a month after OpenAI announced on Jul 9 that it was "deprecating Atlas as we bring browser-based agentic capabilities into ChatGPT and Codex". Atlas was "a new web browser built with ChatGPT at its core", launched on macOS on Oct 21, 2025, with optional browser memories and an agent that could act on web pages. Its jobs now belong to the browser built into the ChatGPT Desktop App and the ChatGPT Browser Extension for Chrome and other browsers.
Quick facts
| Status | Retired; "no longer receives updates" |
| Launched | Oct 21, 2025, macOS only |
| Plans at launch | Free, Plus, Pro and Go; beta for Business; Enterprise and Edu if an admin enabled it |
| Deprecated | Jul 9, 2026 |
| Stopped working | Aug 9, 2026 |
| Replaced by | The desktop app's built-in browser and the ChatGPT Chrome extension |
What did ChatGPT Atlas do?
OpenAI built Atlas around ChatGPT rather than adding ChatGPT to an existing browser (OpenAI):
- ChatGPT built in: the browser and ChatGPT came as one app rather than an add-on.
- Agent mode: in preview for Plus, Pro and Business users at launch, ChatGPT could carry out tasks in the browser. It could not run code in the browser, download files or install extensions.
- Browser memories: "completely optional", viewable and archivable in settings, and deleted along with the browsing history they came from. A toggle in the address bar hid a site from ChatGPT. Atlas's browser memories were kept separate from ChatGPT's own Memory (OpenAI Help Center).
- Training: browsed content was not used to train models unless a user turned on "include web browsing" in data controls.
- Parental controls: parents could turn off browser memories and agent mode.
Later additions included ChatGPT Pulse for Pro users in Atlas on Oct 29, 2025 and pinned chats on Dec 18, 2025. Users who made Atlas their default browser got temporarily higher rate limits, which applied only in Atlas and for up to seven consecutive days (OpenAI Help Center).
Did Atlas come to Windows or phones?
OpenAI's launch post said experiences for Windows, iOS and Android were "coming soon" (OpenAI). No OpenAI page read for this article says whether any of them shipped before Atlas was retired.
Why was Atlas retired, and what happened to my data?
OpenAI's Jul 9, 2026 note gave one reason: browser-based agent features were moving into ChatGPT and Codex themselves. The same day it released the new ChatGPT Desktop App, which holds Chat, ChatGPT Work and Codex and has its own browser (OpenAI Help Center).
Before Aug 9, 2026 users could:
- Export cookies and passwords from Atlas to the ChatGPT desktop app.
- Export bookmarks to Chrome.
Browsing history and open tabs did not transfer (OpenAI Help Center).
What to use instead of ChatGPT Atlas
- The ChatGPT desktop app (macOS, Windows and a Linux preview): its built-in browser lets Work and Codex use websites, including some that need a sign-in on Plus and Pro, and on Aug 31, 2026 gained website tools (WebMCP) (OpenAI Help Center).
- The ChatGPT browser extension: for Chrome, and since Aug 31, 2026 also Edge, Brave, Opera and Vivaldi; it lets ChatGPT read tabs you mention and do browser tasks started from the desktop app. Side chat works in Edge, Brave and Vivaldi, not Opera (OpenAI Help Center).
- Other AI browsers: Perplexity's Comet, Gemini in Chrome, Microsoft Edge and Dia, compared on ChatGPT Atlas vs Other AI Browsers.
Frequently asked questions
Is ChatGPT Atlas discontinued? Yes. OpenAI deprecated Atlas on Jul 9, 2026 and it stopped working on Aug 9, 2026. OpenAI's help article says it has been retired and no longer receives updates.
What replaced ChatGPT Atlas? The browser built into the ChatGPT desktop app and the ChatGPT browser extension for Chrome, Edge, Brave, Opera and Vivaldi replaced Atlas.
When did ChatGPT Atlas come out? OpenAI launched Atlas on macOS on Oct 21, 2025, for Free, Plus, Pro and Go users, with a beta for Business.
Was ChatGPT Atlas free? Yes. Atlas launched for Free users as well as paid plans; its agent mode was a preview for Plus, Pro and Business users.
Can I get my Atlas history back? No source says so. OpenAI let users export cookies and passwords to the ChatGPT desktop app and bookmarks to Chrome before Aug 9, 2026, but browsing history and open tabs did not transfer.
Sources
- Introducing ChatGPT Atlas, OpenAI, Oct 21, 2025
- ChatGPT Atlas help article, OpenAI Help Center, read Nov 6, 2026
- ChatGPT release notes, OpenAI Help Center, read Nov 6, 2026
- ChatGPT can now complete tasks on your computer, OpenAI, Jul 16, 2026 (video)
Moments
ChatGPT can now complete tasks on your computer
OpenAI
Photos
Related
- CanvasCanvas was a ChatGPT workspace for editing writing and code beside the chat, launched in beta on Oct 3, 2024. It was removed from current models on May 28, 2026; writing blocks and interactive code blocks in the chat replaced it.
- DALL-EDALL-E was OpenAI's text-to-image model line: DALL-E (Jan 2021), DALL-E 2 (2022) and DALL-E 3 (2023, built into ChatGPT). GPT-4o image generation replaced it in ChatGPT in March 2025, the API models shut down on May 12, 2026, and the DALL-E GPT retired on Aug 30, 2026.
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GPT Model HistoryOpenAI's GPT models run from GPT-1 (Jun 11, 2018) through GPT-2 (1.5 billion parameters, 2019), GPT-3 (175 billion, 2020), GPT-4 (2023), GPT-4o (2024), GPT-5 (Aug 7, 2025) and the GPT-5.x updates to GPT-6 Astra (Sep 3, 2026) and its siblings.
- Group ChatsChatGPT group chats let several people and ChatGPT share one conversation. OpenAI piloted them on Nov 13, 2025, opened them to all logged-in Free, Go, Plus and Pro users on Nov 20, 2025, and stopped new group chats from Jul 9, 2026.
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History of ChatGPTChatGPT came out on Nov 30, 2022, as a free research preview from OpenAI built on a GPT-3.5 model. By Oct 2026 it had more than 1.2 billion weekly users, paid plans from $8 to $500 a month and the GPT-6 models.
- History of OpenAIOpenAI was founded as a nonprofit AI research company on Dec 11, 2015, added a capped-profit arm in 2019, partnered with Microsoft, released ChatGPT in 2022 and became OpenAI Group PBC under the OpenAI Foundation on Oct 28, 2025.
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OperatorOperator was OpenAI's browser agent, a research preview for Pro users in the US launched on Jan 23, 2025 at operator.chatgpt.com. On Jul 17, 2025 it was folded into ChatGPT as agent mode, and the Operator website is no longer accessible.
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AGENTS.mdAGENTS.md is a plain Markdown file of instructions for AI coding agents, a "README for agents", that Codex reads before doing any work. Codex loads a global ~/.codex/AGENTS.md and then every AGENTS.md from the repository root down to the working folder, closest last, up to 32 KiB; /init writes a first one. The open format is now stewarded by the Agentic AI Foundation.
See also
- OpenAIOpenAI is the AI company behind ChatGPT, Codex and the GPT models. Since Oct 28, 2025 it has been OpenAI Group PBC, controlled by the nonprofit OpenAI Foundation, with Microsoft holding about 27%; CEO Sam Altman leads it, and it was last valued at $852 billion.
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ChatGPT Browser ExtensionThe ChatGPT browser extension for Chrome, Edge, Brave, Opera and Vivaldi lets the ChatGPT desktop app read and act in your own browser, mention open tabs in a chat, and, in every browser but Opera, open a side chat next to a page; it needs the desktop app and replaced the retired Atlas browser.
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MemoryChatGPT memory lets ChatGPT remember your preferences and details from past chats, saved memories and other sources. You can view, edit or delete what it remembers, or turn it off, in Settings > Personalization > Memory.
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ChatGPT PulseChatGPT Pulse gave Pro users a daily set of personalized updates that ChatGPT researched overnight, from Sep 25, 2025. OpenAI announced its sunset on Jun 17, 2026, gave Pro users 14 more days, and moved proactive updates into scheduled tasks.