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Claude Haiku 5.5 vs Opus 5.5: Pricing & API Guide

This story is from 2026-10-09. It is preserved in the archive; the latest stories are on the live feed.

By Beat API Team · Prices and documentation checked October 9, 2026 Start with Haiku 5.5 for bounded, verifiable tasks. Start with Opus 5.5 when the task requires sustained reasoning across files, tools, or conflicting evidence. For applications containing both kinds of work, evaluate a Haiku-first…

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  1. 2026-10-09 14:09 · DEV Community — AI
    Claude Haiku 5.5 vs Opus 5.5: Pricing & API Guide

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