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Claude Haiku 5.5

This story is from 2026-10-07. It is preserved in the archive; the latest stories are on the live feed.

As previously promised , here's Anthropic's new fast, low cost model: Introducing Claude Haiku 5.5 . The previous Haiku, 4.5, was very much showing its age. It came out almost a year ago , and was priced at $1/million input and $5/million output - relatively expensive even back then, and a full 10x…

Read the full story at Simon Willison's Weblog ↗

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  1. 2026-10-07 20:56 · Simon Willison's Weblog
    Claude Haiku 5.5

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