Creator
OpenAI
Released
2025-11-13
Intelligence
36.9
Artificial Analysis Index
Coding
49.4
Artificial Analysis Index
In $/1M
$1.25
input tokens
Out $/1M
$10.00
output tokens
Blended $/1M
$3.44
3:1 blended
Speed
0
tokens / sec
Profile
License, openness, and modality — the governance layer.
License
Proprietary
non-commercial
Weights
Closed
API only
Modalities
Image · Text
Parameters
—
GPT-5.1 High provides enhanced reasoning capabilities with high-effort thinking for complex problems. This variant offers deeper analysis and more thorough responses compared to the base model, making it ideal for challenging tasks that require extended reasoning.
Capability profile
Category strength across 20 domains, via LLM Stats.
math
90biology
90general
90
physics
90chemistry
90reasoning
90
Benchmark breakdown
Independent evaluation scores, normalized to 0–100.
GPQA Diamond
87
Humanity’s Last Exam
27
MMLU-Pro—
SciCode
43
LiveCodeBench
87
MATH-500—
AIME 2025
94
τ²-Bench (agentic)
82
Terminal-Bench Hard
45
IFBench
73