OpenAI/ GPT
GPT-5.1 Chat
openai/gpt-5.1-chat-latest
Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations
Released
2025-11-13
Context window
128K
Max output
16K
Weights
Closed
Modalities
Input
TextImage
Output
Text
Identity
- Version
- gpt-5.1-chat-latest
- Knowledge cutoff
- 2024-09-30
- Aliases
- GPT-5.1 Chat
Providers
| Provider | Provider model ID | Protocol | Context | Max output | Input | Output | Capabilities | Notes | Pricing | Streaming |
|---|---|---|---|---|---|---|---|---|---|---|
| 302.AI | gpt-5.1-chat-latest | openai_chat | 128K | 16K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $1.25/M output $10/M | Yes |
| Helicone | gpt-5.1-chat-latest | openai_chat | 128K | 16K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $1.25/M · cache read $0.125/M output $10/M | Yes |
| Abacus | gpt-5.1-chat-latest | openai_chat | 128K | 16K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $1.25/M output $10/M | Yes |
| OrcaRouter | openai/gpt-5.1-chat-latest | openai_chat | 128K | 16K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $1.25/M · cache read $0.125/M output $10/M | Yes |
| Merge Gateway | openai/gpt-5.1-chat-latest | openai_chat | 128K | 16K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $1.25/M · cache read $0.125/M output $10/M | Yes |
Capabilities
AttachmentsReasoningTool callStructured