GPT-5.1 Chat
unknownOpenAI · gpt-codex family
Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations
Limits
Context128,000
InputUnknown
Output16,384
Modalities
Inputtext, image
Outputtext
Release info
Release2025-11-13
Last update2025-11-13
Knowledge cutoff2024-09-30
Provider offerings
Provider-specific prices and limits stay separate from canonical model facts.
| Provider | Provider model ID | Input | Output | Context | Output limit |
|---|---|---|---|---|---|
| Abacus | gpt-5.1-chat-latest | $1.25 / 1M | $10 / 1M | 400,000 | 128,000 |
| Helicone | gpt-5.1-chat-latest | $1.25 / 1M | $10 / 1M | 128,000 | 16,384 |
| 302.AI | gpt-5.1-chat-latest | $1.25 / 1M | $10 / 1M | 128,000 | 16,384 |
| OpenAI | gpt-5.1-chat-latest | $1.25 / 1M | $10 / 1M | 128,000 | 16,384 |
| Merge Gateway | openai/gpt-5.1-chat-latest | $1.25 / 1M | $10 / 1M | 128,000 | 16,384 |
| OrcaRouter | openai/gpt-5.1-chat-latest | $1.25 / 1M | $10 / 1M | 128,000 | 16,384 |
Capabilities
Attachments
Yes
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Temperature
No