Correction: Opus 5.5 costs $4/M input tokens — 20% cheaper than Opus 5 on both ends

danshipper · x · 2026-09-23

danshipper corrects earlier pricing claims: Opus 5.5 input tokens cost $4 per million, not $5.

At $4/$20, both input and output prices are 20% lower than Opus 5. The roughly 40% overall savings also factors in cache reads being 60% cheaper and improved token efficiency.

Related event: Anthropic Launches Claude Opus 5.5: Smarter, Faster and 40% Cheaper(55 posts)→

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