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The benchmark score is the number to trust least

This story is from 2026-10-08. It is preserved in the archive; the latest stories are on the live feed.

Claude Opus 5.5 scores 58 on Artificial Analysis's Intelligence Index, more than double the median of 26 for comparable reasoning models. That is the figure that gets quoted. It also tells you the least about what the model costs to run. The same evaluation run that produced the 58 recorded everyth…

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  1. 2026-10-08 22:25 · DEV Community — AI
    The benchmark score is the number to trust least

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