GPT-5.1 Chat
- Next shutdown
- None setNo date on 2 platforms
- Context window
- 128KMax output 16.4K tokens
- Released
- Nov 13, 2025OpenAI
Dates on every platform
2 listings · a floor is the earliest possible date
| Platform | Model ID and status | Deprecated | Shuts down | Replacement |
|---|---|---|---|---|
| OpenAI APIOpenAI: Deprecations (opens in a new tab) · checked Oct 14, 2026 | gpt-5.1-chat-latestShut down | Shut down | GPT-5.6 Sol | |
| Azure AI FoundryMicrosoft: Model retirement schedule - Microsoft Foundry (opens in a new tab) · checked Oct 14, 2026 | gpt-5.1-chat:2025-11-13Shut down | – | Shut down | Chat Latest |
Requests to retired deployments return 410 Gone.
What breaks when you move off GPT-5.1 Chat
Change history
ShutdownCodex, chat, search, deep research and computer-use snapshots shut down on the OpenAI APIOpenAI API
OpenAI shut down the GPT-5, GPT-5.1 and GPT-5.2 Codex models, the GPT-5 and GPT-5.1 chat snapshots, the GPT-4o search previews, computer-use-preview and the o3 and o4-mini deep research models. It names GPT-5.6 Sol or GPT-5.6 Terra as the substitute for each.
- Platform
- OpenAI API
- Models
- computer-use-preview, GPT-4o Search Preview, GPT-4o Mini Search Preview, GPT-5 Chat, GPT-5-Codex, GPT-5.1 Chat, GPT-5.1-Codex, GPT-5.1-Codex-Max, GPT-5.1-Codex Mini, GPT-5.2-Codex, o3-deep-research, o4-mini-deep-research
- Announced
ShutdownRemaining GPT-5 chat versions retired on Azure AI FoundryAzure AI Foundry1 break
Microsoft retired gpt-5-chat 2025-08-07, gpt-5.1-chat 2025-11-13, gpt-5.2-chat 2026-02-10 and gpt-5.3-chat 2026-03-03. It lists gpt-chat-latest as the replacement.
- Platform
- Azure AI Foundry
- Models
- GPT-5 Chat, GPT-5.1 Chat, GPT-5.2 Chat, GPT-5.3 Chat
- Replacement
- Chat Latest
- AvailabilityInference requests to retired deployments return 410 Gone.
Source: Microsoft, Model retirement schedule - Microsoft Foundry (opens in a new tab); Microsoft, Microsoft Foundry Models lifecycle and support policy (opens in a new tab)