ModelClock
Release announced
Released on Oct 7, 2026
Anthropic announced this model on 2026-10-07.
- Hosting route
- First-party API
- Affected scope
- Not stated in the notice
- Announced
- Oct 7, 2026
- First seen by ModelClock
- Oct 7, 2026
What the provider published
platform.claude.com ↗
- We've launched Claude Haiku 5.5 (
claude-haiku-5-5), our most capable model tuned for high-volume and latency-sensitive work.
Read from the provider's text; the quote is the provider's exact lines.