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Claude Opus 5.5 vs Opus 5: Same Answers, Half the Output Tokens

This story is from 2026-09-23. It is preserved in the archive; the latest stories are on the live feed.

Claude Opus 5.5 lists 20% below Claude Opus 5 , at $4 per million input tokens and $20 per million output against $5 and $25. That 20% arrives whatever the model does, so the only interesting question is how much of a saving is left after you take it out. On 13 single-shot tasks at each model's def…

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  1. 2026-09-23 16:13 · DEV Community — AI
    Claude Opus 5.5 vs Opus 5: Same Answers, Half the Output Tokens

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