Anthropic: Claude Haiku 5.5 Release Date

Claude Haiku 5.5 was released on 2026-10-07, which was 27 days ago. Its recency score is 99.

Data sourced from OpenRouter API and manual data collection | Last updated: Nov 3, 2026, 8:01 AM UTC

Release date
2026-10-07
Recency score
99

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Frequently asked questions

When was Claude Haiku 5.5 released?

Claude Haiku 5.5 was released on 2026-10-07, which was 27 days ago. Its recency score is 99.