GPT-5.1 Instant
Major release: A new general-purpose AI model from a leading lab, the kind behind ChatGPT, Claude or Gemini: a new flagship or generation.
Key facts
- Released
- Nov 13, 2025
- What it does
- Text and chat: Writes, answers questions and holds a conversation.
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- How
- For developers, through an API
- Announced as
- “GPT-5.1: A smarter, more conversational ChatGPT”
From trckr's archive of releases before it started watching. Date and details from Epoch AI's database of AI models (CC BY 4.0).
Compare GPT-5.1 Instant with
It came out 1 day after GPT-5.1-Codex-mini, the lab's previous model.
The details
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