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Claude 4.5 Haiku (Non-reasoning) vs Grok 4.20 0309 v2 (Reasoning)

Anthropic vs xAI — side-by-side benchmark comparison

Claude 4.5 Haiku (Non-reasoning)Grok 4.20 0309 v2 (Reasoning)
Intelligence Index31.049.3
Coding Index29.640.5
Math Index39.0—
Output speed (tok/s)105.8216.0
Blended price ($/1M)$2.19$3.00
Time to first token (s)0.65s13.32s
aime——
aime 2539.0%—
artificial analysis coding index29.6040.50
artificial analysis intelligence index31.0049.30
artificial analysis math index39.00—
gpqa64.6%91.1%
hle4.3%32.2%
ifbench42.0%81.2%
lcr43.7%58.0%
livecodebench51.1%—
math 500——
mmlu pro80.0%—
scicode34.4%45.6%
tau232.5%93.0%
terminalbench hard27.3%37.9%

Benchmark data from Artificial Analysis.