GPT-5.2-2025-12-11
OpenAI's GPT-5.2-2025-12-11 is a chat model capable of handling various tasks, including function calling, reasoning, and text generation. It is particularly notable for its large context window of over 1 million tokens, allowing it to process and respond to extensive inputs.
Input
Output
Context
1048K
Max Output
128K
Parameters
-
Technical Specifications
Model TypeChat
Context Window1,047,576 tokens
Max Output Tokens128,000 tokens
ParametersNot available
Release DateDec 9, 2025
Training CutoffAug 31, 2025
Licenseproprietary
Open SourceNo
Input Modalities
ImageText
Output Modalities
ImageText
Capabilities
Resources & Links
proprietary, Proprietary - API access only
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Jun 23, 2026
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