claude-opus-5 vs gpt-5.1-codex-mini
Pricing and scores side by side. Blank cells mean the price is undisclosed or the model did not take that test.
InputUSD / 1M tokens$5.00$0.25
OutputUSD / 1M tokens$25.00$2.00
Monthly costat 10M tokens/month$100.00₩132,390$6.88₩9,102
Context1M400K
Report card
Overall50.8#8/17520.4#74/175
ScienceGPQA93.2#11/15981.3#71/159
MathAA Math Indexnot taken91.7#8/94
CodingAA Coding Index78.0#2/82not taken
ReadingAA-LCR79.3#41/15566.7#88/155
KnowledgeMMLU-Pronot taken82.0#33/92
Instruction followingIFBenchnot taken67.9#44/129
Hard reasoningHLE54.9#6/17118.5#82/171
Measured and published by Artificial Analysis. Each subject is a different test, so compare within a subject rather than across them.
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