GPT-5.1
✅ ActiveBalanced GPT-5 series model with strong reasoning capabilities
Context Window
256K
Input Price
$1.25/1M
Output Price
$5.00/1M
Released
Oct 1, 2025
Capabilities
textvisionfunction-callingjson-mode
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Get API Access →Version History
Nov 15, 2025Update
Improved multilingual performance
Oct 1, 2025New Release
Initial release of GPT-5.1