Coding-focused GPT-5.1 variant with optimized routing.
Added Nov 13, 2025
Context Window
400.0K
Max Output
128.0K
Input Price (Auto)
$1.25/1M
Output Price (Auto)
$10.00/1M
Cache Read (Auto)
$0.13/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
23.7
Agentic work
T²-Bench Telecom (legacy)
Legacy fallback · Conversational AI agents in dual-control scenarios
83.0%
Better than 73% of models compared
Document reasoning
AA-LCR v1.1
Long context reasoning with updated grading
69.3%
Better than 61% of models compared
Reasoning
HLE
Humanity's Last Exam
25.7%
Better than 74% of models compared
IFBench
Instruction-following benchmark
70.0%
Better than 84% of models compared
CritPt
Research-level physics reasoning
5.7%
Coding
Terminal-Bench Hard (legacy)
Legacy fallback · Agentic coding and terminal use
34.8%
Better than 80% of models compared
LiveCodeBench
Contamination-free coding benchmark
84.9%
Better than 96% of models compared
Math
AIME 2025
American Invitational Mathematics Examination 2025
95.7%
Better than 97% of models compared
Knowledge
MMLU-Pro
Professional and academic subject knowledge
86.0%
Better than 94% of models compared
AA-Omniscience Accuracy
Proportion of correctly answered questions
39.9%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
77.2%
Legacy benchmarks
GPQA Diamond (legacy)
Graduate-level scientific reasoning
86.0%
Better than 80% of models compared
AA-LCR (unversioned / legacy)
Long context reasoning evaluation
69.3%
Better than 61% of models compared
Last updated Oct 1, 2026
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