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Claude 4.1 Opus (Reasoning) vs Grok 4.20 0309 v2 (Reasoning)

Anthropic vs xAI — side-by-side benchmark comparison

Claude 4.1 Opus (Reasoning)Grok 4.20 0309 v2 (Reasoning)
Intelligence Index42.049.3
Coding Index36.540.5
Math Index80.3
Output speed (tok/s)44.5216.0
Blended price ($/1M)$32.81$3.00
Time to first token (s)8.55s13.32s
aime
aime 2580.3%
artificial analysis coding index36.5040.50
artificial analysis intelligence index42.0049.30
artificial analysis math index80.30
gpqa80.9%91.1%
hle11.9%32.2%
ifbench55.4%81.2%
lcr66.3%58.0%
livecodebench65.4%
math 500
mmlu pro88.0%
scicode40.9%45.6%
tau271.4%93.0%
terminalbench hard34.3%37.9%

Benchmark data from Artificial Analysis.