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Claude 4.5 Haiku (Reasoning) vs Grok 4.3 (high)

Anthropic vs xAI — side-by-side benchmark comparison

Claude 4.5 Haiku (Reasoning)Grok 4.3 (high)
Intelligence Index37.153.2
Coding Index32.641.0
Math Index83.7
Output speed (tok/s)142.2161.0
Blended price ($/1M)$2.19$1.56
Time to first token (s)10.48s22.30s
aime
aime 2583.7%
artificial analysis coding index32.6041.00
artificial analysis intelligence index37.1053.20
artificial analysis math index83.70
gpqa67.2%90.1%
hle9.7%35.0%
ifbench54.3%81.3%
lcr70.3%64.3%
livecodebench61.5%
math 500
mmlu pro76.0%
scicode43.3%47.3%
tau254.7%97.7%
terminalbench hard27.3%37.9%

Benchmark data from Artificial Analysis.