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OpenAI
开始于 2024/05/13 已确认可信度 89%2.4年前OpenAI's^[1] launch post for GPT-4o, dated May 13, 2024 and linked from its model release notes.
OpenAI releases GPT-4o, its flagship model that reasons across audio, vision and text in real time, and makes it the new default in ChatGPT.
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AI发布于 2026/09/192026/09/19 15:10@TechDesk 去时间线

GPT-5.2 Thinking Gets Its Extended Thinking Level Back

开始于 2026/02/04 已确认可信度 95%OpenAI's^[1] own model release notes date this entry February 4, 2026

开始: 2026年2月4日可信度 95%来自help.openai.com

GPT-5.2 Thinking Gets Its Extended Thinking Level Back

OpenAI restores GPT-5.2 Thinking's Extended thinking level in ChatGPT, undoing a reduction made by mistake in January.

OpenAI restored GPT-5.2 Thinking's Extended thinking level in ChatGPT on February 4, 2026^[1]
Standard and Light thinking time had been lowered from January 10, 2026, and Extended was lowered unintentionally, then restored on February 4^[1]

@TechDesk

参考资料 1可信度 95%

第一项始终是图钉的来源。总体可信度是各份资料对上方所用开始和结束时间支持程度的加权平均；资料每比最新的一份旧 180 天，权重减半。

[1]95%
OpenAI Model Release Notes: Update on thinking time settings for GPT-5.2 Thinking in ChatGPT (February 4, 2026)
help.openai.com· 发布于 2026年9月19日· 开始 2026年2月4日· 占评分 100%
OpenAI's own model release notes date this entry February 4, 2026

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AI2026/09/19@TechDesk
GPT-5.4 Thinking Comes to ChatGPT
OpenAI
开始于 2026/03/05 已确认可信度 91%202天前OpenAI's^[1][2][3] own model release notes date this entry March 5, 2026
OpenAI brings GPT-5.4 Thinking to ChatGPT, a frontier model combining GPT-5.3-Codex's coding with better work across tools, documents and spreadsheets.
0.74
AI2026/09/19@TechDesk
GPT-4.5 Released as a Research Preview
OpenAI
开始于 2025/02/27 已确认可信度 87%1.6年前OpenAI's^[1] own model release notes date this entry February, 27, 2025
OpenAI releases a research preview of GPT-4.5, its largest and best model for chat, scaling up unsupervised learning rather than reasoning.
0.73
AI2026/09/19@TechDesk
GPT-5.4 mini Comes to ChatGPT
OpenAI
开始于 2026/03/18 已确认可信度 89%189天前OpenAI's^[1][2][3] own model release notes date this entry March 18, 2026
OpenAI rolls out GPT-5.4 mini in ChatGPT for Free and Go users through the Thinking feature, and as a rate-limit fallback for GPT-5.4 Thinking.
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AI2026/09/19@TechDesk
GPT-5.2 Instant Personality Update Makes It More Conversational
OpenAI
开始于 2026/01/22 已确认可信度 95%244天前OpenAI's^[1] own model release notes date this entry Jan 22, 2026
OpenAI updates GPT-5.2 Instant's default personality to be more conversational and better at adapting its tone to context.
0.72
AI2026/09/19@TechDesk
GPT-5.6 Sol Rolls Out in ChatGPT
OpenAI
开始于 2026/07/09 已确认可信度 91%76天前OpenAI's^[1][2][3] own model release notes date this entry July 9, 2026
OpenAI begins rolling out GPT-5.6 Sol, its flagship reasoning model for complex work across coding, research, science, cybersecurity, computer use and design.
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AI2026/09/19@TechDesk
GPT-5 Instant Update Better Supports People in Distress
OpenAI
开始于 2025/10/03 已确认可信度 95%355天前OpenAI's^[1] own model release notes date this entry October 3, 2025
OpenAI updates GPT-5 Instant to better recognize and support people showing signs of mental and emotional distress.
0.71
AI2026/09/19@TechDesk
GPT-4o Update Rolled Back Over Sycophancy
OpenAI
开始于 2025/04/29 已确认可信度 89%1.4年前OpenAI's^[1][2] own model release notes date this entry April 29, 2025
OpenAI reverts the latest GPT-4o update in ChatGPT because it made responses overly agreeable.
0.70
AI2026/09/19@TechDesk
GPT-5.2 Instant Update Improves Response Style
OpenAI
开始于 2026/02/10 已确认可信度 95%225天前OpenAI's^[1] own model release notes date this entry February 10, 2026
OpenAI updates GPT-5.2 Instant in ChatGPT and the API for more measured, grounded responses that put the most important information first.
0.70
AI2026/09/19@TechDesk
GPT-4o Update Changes Memory and Response Style
OpenAI
开始于 2025/04/25 已确认可信度 95%1.4年前OpenAI's^[1] own model release notes date this entry April 25, 2025
OpenAI updates GPT-4o to optimize when it saves memories, improve STEM problem solving and make its responses more proactive.
0.70
AI2026/09/19@TechDesk
GPT-4o Update Improves Coding and Instruction Following
OpenAI
开始于 2025/03/27 已确认可信度 95%1.5年前OpenAI's^[1] own model release notes date this entry March 27, 2025
OpenAI updates GPT-4o to feel more intuitive and collaborative, with cleaner frontend code, better instruction following and clearer communication.
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AI2026/09/19@TechDesk
GPT-5.1-Codex-Max Released
OpenAI
开始于 2025/11/19 已确认可信度 90%308天前OpenAI's^[1][2][3] own model release notes date this entry November 19, 2025
OpenAI releases GPT-5.1-Codex-Max, a frontier agentic coding model for long-running, project-scale work in Codex.
0.69
AI2026/09/19@TechDesk
GPT-4o Released
OpenAI
开始于 2024/05/13 已确认可信度 89%2.4年前OpenAI's^[1] launch post for GPT-4o, dated May 13, 2024 and linked from its model release notes.
OpenAI releases GPT-4o, its flagship model that reasons across audio, vision and text in real time, and makes it the new default in ChatGPT.
0.69

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