Haiku 5.5 day: Anthropic's latest small model appears to ship

scaling01 · x · 2026-10-08

AI tracker account scaling01 posted "happy Haiku 5.5 day", signaling that Anthropic's Haiku 5.5 appears to have shipped. The post is a single line with no specs or benchmarks — treat it as a release signal pending official details.

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