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Grok 4.3 (low) vs Claude 4.1 Opus (Reasoning)

xAI vs Anthropic — side-by-side benchmark comparison

Grok 4.3 (low)Claude 4.1 Opus (Reasoning)
Intelligence Index43.942.0
Coding Index31.636.5
Math Index80.3
Output speed (tok/s)118.344.5
Blended price ($/1M)$1.56$32.81
Time to first token (s)6.35s8.55s
aime
aime 2580.3%
artificial analysis coding index31.6036.50
artificial analysis intelligence index43.9042.00
artificial analysis math index80.30
gpqa84.3%80.9%
hle17.3%11.9%
ifbench81.0%55.4%
lcr64.0%66.3%
livecodebench65.4%
math 500
mmlu pro88.0%
scicode41.9%40.9%
tau288.9%71.4%
terminalbench hard26.5%34.3%

Benchmark data from Artificial Analysis.