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Claude 4.5 Haiku (Non-reasoning) vs DeepSeek V4 Flash (Reasoning, High Effort)

Anthropic vs DeepSeek — side-by-side benchmark comparison

Claude 4.5 Haiku (Non-reasoning)DeepSeek V4 Flash (Reasoning, High Effort)
Intelligence Index31.046.0
Coding Index29.639.8
Math Index39.0
Output speed (tok/s)105.80.0
Blended price ($/1M)$2.19$0.17
Time to first token (s)0.65s0.00s
aime
aime 2539.0%
artificial analysis coding index29.6039.80
artificial analysis intelligence index31.0046.00
artificial analysis math index39.00
gpqa64.6%86.7%
hle4.3%27.8%
ifbench42.0%73.5%
lcr43.7%62.7%
livecodebench51.1%
math 500
mmlu pro80.0%
scicode34.4%42.0%
tau232.5%95.6%
terminalbench hard27.3%38.6%

Benchmark data from Artificial Analysis.