Anthropic · model releaseClaude Haiku 5.5

Valid from

2026-10-07

Valid until

still holds

Published

2026-10-07

Recorded by AsOf

2026-10-31

Checked

2026-10-31 · its source page states the value and the date

Confidence

0.70

Sources

“October 7, 2026 Claude Haiku 5.5 launch We just launched Claude Haiku 5.5, the cheapest, fastest, and most capable small model we’ve released, designed for high-volume, cost-sensitive tasks.”— what the page says, read 2026-10-31

• Claude Platform release notes, October 7, 2026primary · platform.claude.com · 2026-10-07
• Claude apps release notes, October 7, 2026primary · support.claude.com · 2026-10-07

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