OpenAI Inc.
gpt-5.1-chat
GPT-5.1 Chat points to the GPT-5.1 snapshot currently used in ChatGPT. We recommend GPT-5.1 for most API usage, but feel free to use this GPT-5.1 Chat model to test our latest improvements for chat use cases.
👁Vision🧠Reasoning🔧Tool calling⚡Caching
Pricing per 1M tokens
Input
$1.25
Output
$10.00
Cache write
$10.00
Cache read
$0.13
Specifications
Context window128K tokens
Max output16K tokens
API typechat
AddedDec 1, 2025
Model IDopenai/gpt-5.1-chat
Privacy & data
Data retentionYes (30 days)
Used for trainingNo
Provider location🇺🇸 US
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