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GPT-5.3 Codex (xhigh) vs Molmo2-8B

OpenAI vs Allen Institute for AI — side-by-side benchmark comparison

GPT-5.3 Codex (xhigh)Molmo2-8B
Intelligence Index53.67.3
Coding Index53.14.4
Math Index
Output speed (tok/s)84.70.0
Blended price ($/1M)$4.81$0.00
Time to first token (s)60.27s0.00s
aime
aime 25
artificial analysis coding index53.104.40
artificial analysis intelligence index53.607.30
artificial analysis math index
gpqa91.5%42.5%
hle39.9%4.4%
ifbench75.4%26.9%
lcr74.0%0.0%
livecodebench
math 500
mmlu pro
scicode53.2%13.3%
tau286.0%0.0%
terminalbench hard53.0%0.0%

Benchmark data from Artificial Analysis.