We officially entered the 2025 International Olympiad in Informatics (IOI) online competition track and adhered to the same restrictions as the human contestants, including submissions and time limits. The IOI is the world’s top programming competition for pre-college students —
@openai
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Check Which AI Model Processed Your Prompt
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By popular request, you can now check which model ran your prompt by hovering over the “Regen” menu.
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GPT-5 Rollout Expansion: Rate Limits and Mini Versions
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A few GPT-5 updates heading into the weekend: – Now rolled out to 100% of Plus, Pro, Team, and Free users – We’ve finished implementing 2x rate limits for Plus and Team for the weekend; next week we’re rolling out mini versions of GPT-5 & GPT-5 thinking to take over until your
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OpenAI CEO Sama AMA GPT-5 Team Discussion
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AMA with @sama + some members of the GPT-5 team Tomorrow 11am PT.
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GPT-5 Introduces Four New Chat Personalities for Customization
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GPT-5 has 4 new chat personalities: Cynic, Robot, Listener, Nerd. Find them in Customize ChatGPT in settings. Research preview. Text-only. Opt-in. Change anytime. Written by Robot in GPT-5.
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GPT-5 Safety Training: Safe Completions Approach
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For GPT-5, we introduced a new form of safety-training — safe completions — which teaches the model to give the most helpful answer where possible while still staying within safety boundaries. If a request can’t be met safely, ChatGPT may partially respond or give a brief
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GPT-5 Now Available to All Plus Pro Team Free Users
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GPT‑5 is available to all Plus, Pro, Team, and Free users starting today with access for Enterprise and Edu coming in one week. It may take a few days to roll out to all Free users. – Pro users get unlimited access to GPT-5 & access to GPT‑5 Pro, ideal for the most challenging,
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GPT-5 Becomes Default Model in ChatGPT with New Options
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You might be wondering, what’s happening to the model picker? GPT-5 is now the new default in ChatGPT for all users. Plus users can choose between GPT-5 and GPT-5 Thinking, and Pro users can access legacy models via settings.
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GPT-5 Reduces Hallucinations and Improves Accuracy
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GPT-5 is far less likely to hallucinate than our previous models, meaning responses are more accurate and trustworthy. When reasoning, GPT-5 more accurately recognizes when tasks can’t be completed and communicates its limits clearly.
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GPT-5 Advances Health AI with Precise Contextual Responses
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GPT-5 is our best model yet for health-related questions, empowering users to be informed about and advocate for their health. The model now provides more precise and reliable responses, adapting to the user’s context, knowledge level, and geography.