ChatGPT was released to the public on November 30, 2022, as a free research preview from OpenAI.[1][2] The first version was built for conversation: it could answer follow-up questions, admit mistakes, challenge incorrect premises, and refuse some inappropriate requests.[1][2] What began as a simple web chatbot quickly became OpenAI’s flagship consumer product. By January 2023, outside estimates put ChatGPT at 100 million monthly active users, only about two months after launch.[3][4] Since then, ChatGPT has moved through paid plans, GPT-4, plugins, mobile apps, GPTs, GPT-4o, reasoning models, agents, GPT-5, and GPT-5.2.
When ChatGPT was released
ChatGPT was released on November 30, 2022.[1][2] OpenAI described the launch as a research preview, not a finished general-purpose assistant.[1][2] The public release happened before ChatGPT Plus, before GPT-4 in ChatGPT, before mobile apps, and before custom GPTs.[5][7]
The short answer is simple. The useful answer is that ChatGPT’s release was the start of a product line, not a single static product. The ChatGPT people used in late 2022 was far more limited than the ChatGPT available by March 1, 2026.[1][37]
What the first release included
The original ChatGPT release was a browser-based conversational interface built around dialogue. OpenAI said the format made it possible for the system to answer follow-up questions, admit mistakes, challenge false premises, and reject inappropriate requests.[1][2] It was free during the research preview, which helped adoption because users did not have to buy a subscription before trying it.[1][2]
The first release was not positioned as a search engine, office suite, mobile app, agent, or developer platform. It was a text chat product that made a large language model usable by ordinary people. That distinction matters. Earlier GPT systems existed, but ChatGPT packaged the model as a simple conversation rather than an API call or research demo.
OpenAI also framed the launch as part of iterative deployment. In practice, that meant OpenAI wanted broad user feedback before it expanded the product. The company’s feedback contest rules corroborate the public launch window: entries were accepted beginning at 8:00 a.m. Pacific time on November 30, 2022.[2][1]
If you are comparing early ChatGPT with today’s model lineup, start with all GPT models compared side by side. The model family changed repeatedly after launch, and ChatGPT’s name now refers to a product that can route work across different model types.
Full ChatGPT timeline
This timeline focuses on public ChatGPT milestones, not every OpenAI API release. It includes product changes that altered what a typical ChatGPT user could do.
| Date | Milestone | What changed for users |
|---|---|---|
| November 30, 2022[1][2] | ChatGPT research preview | OpenAI released ChatGPT publicly as a free conversational AI system. |
| January 2023[3][4] | Estimated 100 million monthly active users | Outside estimates said ChatGPT reached mass adoption roughly two months after launch. |
| February 1, 2023[5][6] | ChatGPT Plus | OpenAI introduced a paid plan at $20 per month. |
| March 14, 2023[7][8] | GPT-4 in ChatGPT Plus | Paid users gained access to GPT-4 with a usage cap. |
| March 23, 2023[9][10] | Plugins and browsing experiments | ChatGPT began moving beyond static text generation into tool use and web access. |
| May 18, 2023[11][12] | ChatGPT app for iOS | OpenAI released its official iPhone app for ChatGPT. |
| August 28, 2023[13][14] | ChatGPT Enterprise | OpenAI launched a business tier with enterprise security, privacy, and higher-speed GPT-4 access. |
| November 6, 2023[15][16] | GPTs and GPT-4 Turbo announced | OpenAI introduced custom GPTs and GPT-4 Turbo at its first DevDay. |
| January 10, 2024[17][18] | GPT Store and ChatGPT Team | OpenAI began rolling out the GPT Store and a smaller-business team plan. |
| May 13, 2024[19][20] | GPT-4o | OpenAI brought GPT-4-level intelligence and more tools to free users. |
| July 18, 2024[21][22] | GPT-4o mini | OpenAI replaced GPT-3.5 in ChatGPT with a smaller, faster GPT-4o-family model. |
| October 31, 2024[23][24] | ChatGPT search | OpenAI launched web search inside ChatGPT for Plus, Team, and SearchGPT waitlist users. |
| September 12, 2024[25][26] | OpenAI o1 preview | ChatGPT added a reasoning model designed to spend more time thinking before answering. |
| December 5, 2024[27][28] | ChatGPT Pro | OpenAI launched a $200 monthly plan with expanded access to o1 and other tools. |
| January 23, 2025[29][30] | Operator research preview | OpenAI introduced an agent that could use a browser to perform tasks. |
| February 27, 2025[31][32] | GPT-4.5 | OpenAI released GPT-4.5 as a research preview for ChatGPT users on higher tiers. |
| August 7, 2025[33][34] | GPT-5 | OpenAI introduced GPT-5 as the next flagship model for ChatGPT. |
| November 12, 2025[35][36] | GPT-5.1 | OpenAI updated ChatGPT with a more conversational GPT-5.1 series. |
| December 11, 2025[37][38] | GPT-5.2 | OpenAI released GPT-5.2 for ChatGPT and the API, emphasizing long-context reasoning and work tasks. |
| February 13, 2026[39][40] | Legacy model retirements | OpenAI retired GPT-4o, GPT-4.1, GPT-4.1 mini, OpenAI o4-mini, and GPT-5 Instant and Thinking from ChatGPT. |
How ChatGPT changed after launch
ChatGPT’s first major shift was monetization. OpenAI introduced ChatGPT Plus on February 1, 2023, at $20 per month, while keeping a free option available.[5][6] That split created the pattern ChatGPT still follows: free access for broad reach, paid plans for heavier use, earlier access, or more capable models. For the current subscription value question, see our ChatGPT Plus price in 2026 guide.
The second shift was model quality. GPT-4 reached ChatGPT Plus on March 14, 2023, and gave paying users a more capable model than the first public ChatGPT experience.[7][8] That was when many users stopped thinking of ChatGPT as a novelty and started treating it as a serious writing, coding, tutoring, and analysis assistant.
The third shift was tools. Plugins and browsing experiments arrived on March 23, 2023, and moved ChatGPT toward actions and external information.[9][10] Search later became a more direct part of the product when OpenAI launched ChatGPT search on October 31, 2024.[23][24]
The fourth shift was distribution. OpenAI released the ChatGPT iOS app on May 18, 2023, which made the product feel less like a website and more like a daily utility.[11][12] The mobile phase also helped separate the official ChatGPT app from look-alike apps that had appeared in app stores.
The fifth shift was workplace adoption. ChatGPT Enterprise launched on August 28, 2023, with enterprise security and privacy claims, higher-speed GPT-4 access, longer context windows, and advanced data analysis capabilities.[13][14] If you are comparing ChatGPT with API deployment, our OpenAI API pricing guide explains why business users often separate ChatGPT seats from API usage.
The sixth shift was personalization. OpenAI announced GPTs at DevDay on November 6, 2023, and launched the GPT Store on January 10, 2024.[15][16][17][18] Instead of giving every user one generic assistant, ChatGPT began supporting custom assistants with instructions, uploaded knowledge, and tools.
Analysis: the pattern in ChatGPT’s evolution
The pattern across ChatGPT’s history is clear: OpenAI releases a broad interface first, then adds specialized capability, then folds that capability back into the main product. The 2022 release was a plain chat interface.[1][2] The 2023 releases added paid access, stronger models, plugins, mobile apps, and enterprise packaging.[5][7][9][13] The 2024 and 2025 releases added multimodal access, search, reasoning, agents, and newer model routing.[19][23][25][29][33]
This creates a useful decision framework. If you are asking when ChatGPT was released for historical purposes, use November 30, 2022.[1][2] If you are asking when ChatGPT became strong enough for professional work, March 14, 2023, is a defensible marker because GPT-4 arrived in ChatGPT Plus that day.[7][8] If you are asking when ChatGPT became a multimodal mainstream assistant, May 13, 2024, matters because GPT-4o expanded GPT-4-level capability to free users.[19][20] If you are asking when ChatGPT became a model-routing product centered on a new generation, August 7, 2025, matters because GPT-5 became the flagship ChatGPT model.[33][34]
The tradeoff is that ChatGPT’s name hides change. A screenshot from December 2022 and a session from March 1, 2026 are both “ChatGPT,” but they do not represent the same capabilities. That is why dates matter. A claim about ChatGPT may be true for one era and misleading for another. This is especially important when comparing model behavior, context limits, and tool access. For model-specific differences, use our context window comparison and most powerful GPT model breakdowns.
Important ChatGPT milestones by era
The timeline is easier to understand if you group it into eras. Each era changed the product in a different way: access, capability, distribution, customization, multimodality, reasoning, and agency.
| Era | Key release window | Main change | Representative milestones |
|---|---|---|---|
| Research preview | November 30, 2022[1][2] | Public access to conversational AI | Free ChatGPT research preview |
| Paid and stronger models | February 1 to March 14, 2023[5][6][7][8] | Subscription access and GPT-4 | ChatGPT Plus at $20 per month; GPT-4 for Plus users |
| Tools and apps | March 23 to May 18, 2023[9][10][11][12] | ChatGPT moved beyond a website text box | Plugins, browsing experiments, iOS app |
| Workplace and customization | August 28, 2023 to January 10, 2024[13][14][15][17] | Business use and custom assistants | ChatGPT Enterprise, GPTs, GPT Store, ChatGPT Team |
| Multimodal and search | May 13 to October 31, 2024[19][20][23][24] | Broader free capability and web answers | GPT-4o, GPT-4o mini, ChatGPT search |
| Reasoning and premium compute | September 12 to December 5, 2024[25][26][27][28] | Models that spend more time on hard problems | o1 preview, ChatGPT Pro at $200 per month |
| Agents and GPT-5 generation | January 23 to December 11, 2025[29][30][33][37] | Browser action and flagship model routing | Operator, GPT-5, GPT-5.1, GPT-5.2 |
The table also shows why “ChatGPT release date” can mean different things in casual conversation. The official initial release is November 30, 2022.[1][2] But many features people now associate with ChatGPT came later: GPT-4 in March 2023, GPTs in November 2023, GPT-4o in May 2024, and GPT-5 in August 2025.[7][15][19][33]
Developers should also separate ChatGPT from the OpenAI API. ChatGPT is the consumer and workplace product. The API is a developer platform with its own pricing, error behavior, rate limits, and deployment patterns. If you are building software, start with OpenAI API errors, OpenAI Batch API, and the OpenAI Vision API rather than assuming ChatGPT product history maps directly to API behavior.
What was not released on day one
ChatGPT did not launch with GPT-4. GPT-4 reached ChatGPT Plus on March 14, 2023, more than three months after the original ChatGPT release.[7][8] That timing is important because many people now remember ChatGPT through the GPT-4 era, not through the more limited research preview.
ChatGPT did not launch with a paid plan. ChatGPT Plus arrived on February 1, 2023, at $20 per month.[5][6] The paid tier helped OpenAI offer priority access and faster responses while still keeping free access available.
ChatGPT did not launch with plugins, browsing, or search. Plugins and browsing experiments were announced on March 23, 2023, and ChatGPT search launched on October 31, 2024.[9][10][23][24] The original product answered from model training and conversation context, not from live search results.
ChatGPT did not launch as a phone app. OpenAI launched the official ChatGPT app for iOS on May 18, 2023.[11][12] Before then, most people used ChatGPT through the web, and app stores contained unofficial apps using similar names.
ChatGPT did not launch with custom GPTs or a GPT Store. OpenAI announced GPTs at DevDay on November 6, 2023, and started rolling out the GPT Store on January 10, 2024.[15][16][17][18] That later change turned ChatGPT into more of a platform for task-specific assistants.
ChatGPT did not launch with autonomous browser action. Operator was introduced as a research preview on January 23, 2025.[29][30] That marked a different product direction: not just answering questions, but using a browser to perform tasks under user control.
The same caution applies to corporate history. OpenAI, Microsoft, and ChatGPT are connected, but not interchangeable. For the company context, read OpenAI and Microsoft and OpenAI’s CTO and leadership team.
Frequently asked questions
When was ChatGPT released to the public?
ChatGPT was released to the public on November 30, 2022.[1][2] OpenAI described it as a research preview and made it free during that preview period.[1][2] That date is the correct answer when people ask for ChatGPT’s original release date.
Was ChatGPT released in 2022 or 2023?
ChatGPT was released in 2022, specifically on November 30, 2022.[1][2] The confusion comes from the major 2023 updates, including ChatGPT Plus on February 1, 2023, and GPT-4 in ChatGPT Plus on March 14, 2023.[5][7] The product became much more capable in 2023, but it did not start then.
When did ChatGPT Plus launch?
ChatGPT Plus launched on February 1, 2023.[5][6] OpenAI priced the plan at $20 per month.[5][6] It offered benefits such as general access during peak times, faster response times, and priority access to new features.[5][6]
When did GPT-4 come to ChatGPT?
GPT-4 came to ChatGPT Plus on March 14, 2023.[7][8] OpenAI said GPT-4’s text input capability was being released through ChatGPT and the API, with API access starting through a waitlist.[7][8] This was one of the most important early upgrades after the November 30, 2022 launch.[1][7]
When did ChatGPT get internet search?
ChatGPT first moved toward web access with plugins and browsing experiments announced on March 23, 2023.[9][10] OpenAI later launched ChatGPT search on October 31, 2024.[23][24] The later search feature was a more direct product experience for timely answers with links to web sources.[23][24]
When did ChatGPT reach 100 million users?
Outside estimates said ChatGPT reached 100 million monthly active users in January 2023.[3][4] That was about two months after the November 30, 2022 launch.[1][3] The figure came from third-party estimates reported by Reuters and other outlets, not from an official OpenAI user-count announcement.[3][4]
What was the latest major ChatGPT model release by March 1, 2026?
By March 1, 2026, the latest major GPT release covered in OpenAI’s public ChatGPT timeline was GPT-5.2, released on December 11, 2025.[37][38] OpenAI’s February 13, 2026 release notes also retired several older ChatGPT models, including GPT-4o and GPT-5 Instant and Thinking.[39][40] That means a March 1, 2026 comparison should not treat the 2022 research preview as representative of current ChatGPT.
Bottom line
Use November 30, 2022 as the official ChatGPT release date.[1][2] Use the timeline after that date to understand which version of “ChatGPT” someone means: the first research preview, the GPT-4 upgrade, the GPT-4o era, the reasoning-model era, or the GPT-5 generation.[7][19][25][33]
The next thing to watch is not just a new model name. It is whether ChatGPT continues to merge chat, search, files, code, memory, and agents into one product. That integration trend has defined ChatGPT since its first public release.