GPT-5.1 Chat
openai/gpt-5.1-chat-latest
Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations
Capabilities
ReasoningYes
Tool callingYes
Structured outputYes
TemperatureFixed
AttachmentYes
Open weightsNo
Limits
Context128,000 tokens
Max inputN/A
Max output16,384 tokens
Details
Familygpt-codex
Knowledge cutoff2024-09-30
Release date2025-11-13
Last updated2025-11-13
Modalities
Inputtext, image
Outputtext
Community Rating
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Pricing
Cost per 1M tokens
InputN/A
OutputN/A