Leaked Claude Opus 5.5 Pricing Shows $0.20/Mtok Cache Read, Sparking Hype
xeophon · x · 2026-09-20
An unverified leak lists Claude Opus 5.5 pricing at $4/Mtok input, $20/Mtok output, $5 cache write, and just $0.2 cache read. Xeophon notes that if true it'd be huge, since cache reads make up the vast majority of tokens—and thus cost—for heavy agent users.
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