GPT 5.1 Codex Max

Release Date: 12/4/2025

Benchmarked by Vals Logo

OpenAI's frontier agentic coding model. Good at long-running coding tasks.

Avg. Accuracy

50.4%

Latency

6931.5s

Cost (In/Out)

1.25 / 10.00

Context Window

400k

Max Output Tokens

N/A

Input Modality

Benchmarks

Accuracy

Rankings

Vibe Code Bench

0.0%

14/ 14

LiveCodeBench

0.0%

73/ 73

IOI

0.0%

29/ 29

Terminal-Bench

0.0%

39/ 39

SWE-bench

0.0%

37/ 37

Academic Benchmarks
Proprietary Benchmarks (contact us to get access)

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