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確定確度 88%Dated from the release notes leave the GPT-5 entry undated; OpenAI[1][3][4] launched GPT-5 in ChatGPT on Aug 7, 2025
- 開始
- 2025年8月7日確度 95%出典：help.openai.com
GPT-5 Released
OpenAI's GPT-5 becomes ChatGPT's new flagship and default model, rolling out to Free, Plus, Pro and Team users.
- GPT-5 was launched on August 7, 2025 for users of ChatGPT and Microsoft Copilot and for developers through the OpenAI API[2]
- It is the new ChatGPT default, replacing GPT-4o, o3, o4-mini, GPT-4.1 and GPT-4.5 for signed-in users, rolling out to Plus, Pro, Team and Free users, with Enterprise and Edu the next week[4]
- Pro gets unlimited use and GPT-5 pro (replacing o3-pro); GPT-5 Thinking Pro is offered to Pro and Team[1][4]
- Four preset personalities (Cynic, Robot, Listener, Nerd) in research preview[4]
Notable features
- GPT-5 was launched on August 7, 2025 as a unified system: a smart, efficient model, a deeper reasoning model (GPT-5 thinking) and a real-time router that chooses between them; a mini version handles queries once limits are reached[1][4]
- In the API it has a 400,000-token context window and 128,000 max output tokens, takes text and image input with text output, supports reasoning effort from minimal to high, has a September 30, 2024 knowledge cutoff, and costs $1.25 per million input tokens ($0.125 cached) and $10 per million output tokens[3]
- Benchmarks: 94.6% AIME 2025 (no tools), 74.9% SWE-bench Verified, 88% Aider Polyglot, 84.2% MMMU, 46.2% HealthBench Hard[4]
- GPT-5 thinking beats o3 with 50-80% fewer output tokens; about 45% fewer factual errors than GPT-4o with web search[4]
- Sycophancy cut from 14.5% to under 6% on targeted evals; new "safe completions" safety training; treated as High capability in biological and chemical domain[4]
参考資料 4確度 88%
最初の項目は常にピンの出典です。全体の確度は、各資料が上記の開始・終了時刻をどれだけ強く裏付けているかの加重平均です。最新の資料より180日古くなるごとに、重みは半分になります。
- [1]95%OpenAI Model Release Notes: GPT-5help.openai.com· 投稿 2026年9月19日· 開始 2025年8月7日· スコアの 25%
Dated from the release notes leave the GPT-5 entry undated; OpenAI[3][4] launched GPT-5 in ChatGPT on Aug 7, 2025
- [2]78%GPT-5 - Wikipediaen.wikipedia.org· 追加 2026年9月22日· スコアの 25%
Wikipedia's GPT-5 article says it "was launched on August 7, 2025" and is available in ChatGPT and Microsoft Copilot and to developers through the OpenAI[1][3][4] API.
- [3]90%GPT-5 Model | OpenAI APIdevelopers.openai.com· 追加 2026年9月22日· スコアの 25%
OpenAI's[1][4] API model page for GPT-5 gives a "400,000 context window", "128,000 max output tokens", a Sep 30, 2024 knowledge cutoff, text and image input, and $1.25/$10 per million token pricing.
- [4]90%Introducing GPT-5openai.com· 追加 2026年9月19日· 開始 2025年8月7日· スコアの 25%
OpenAI's[1][3] launch post for GPT-5, published Aug 7, 2025.
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