GPT-5.1
OpenAI's GPT-5.1 is a chat model that excels in a wide range of capabilities, including text generation, code generation, and reasoning. It is particularly notable for its large context window of 272,000 tokens, allowing it to process and understand extensive inputs.
Input
Output
Context
272K
Max Output
128K
Parameters
-
Technical Specifications
Model TypeChat
Context Window272,000 tokens
Max Output Tokens128,000 tokens
ParametersNot available
Release DateNov 10, 2025
Training CutoffSep 30, 2024
Licenseproprietary
Open SourceNo
Input Modalities
ImageText
Output Modalities
ImageText
Capabilities
Benchmarks
Artificial Analysis
26.5%
HLE
87.3%
GPQA
43.3%
SciCode
87.0%
MMLU Pro
94.0
Math
44.7
Coding
86.8%
LiveCodeBench
38.9
Intelligence
106
Speed (tok/s)
46.9
TTFA (s)
46.9
TTFT (s)
Resources & Links
proprietary, Proprietary - API access only
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Jun 24, 2026
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