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GPT-5.1 Codex mini (high) vs Claude 4.1 Opus (Non-reasoning)

OpenAI vs Anthropic — side-by-side benchmark comparison

GPT-5.1 Codex mini (high)Claude 4.1 Opus (Non-reasoning)
Intelligence Index38.636.0
Coding Index36.4
Math Index91.7
Output speed (tok/s)218.544.7
Blended price ($/1M)$0.69$32.81
Time to first token (s)3.35s1.63s
aime
aime 2591.7%
artificial analysis coding index36.40
artificial analysis intelligence index38.6036.00
artificial analysis math index91.70
gpqa81.3%
hle16.9%
ifbench67.9%
lcr62.7%
livecodebench83.6%
math 500
mmlu pro82.0%
scicode42.6%
tau262.9%
terminalbench hard33.3%

Benchmark data from Artificial Analysis.