Claude 3 Haiku

Anthropic · Claude Haiku line · lightweight

Released March 13, 2024Replaced by Claude 3.5 Haiku

What changed

No verified summary yet. We only publish what the maker's own numbers support, so this card fills in as the sources come in.

Where the Claude Haiku line stands

Claude Haiku 4.5 is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.

Claude Haiku 4.5

Anthropic · Claude Haiku line · lightweight

Due329 days since the last release — usual gap is 291

Released Oct 15, 2025 · what changed →

Days since last release

Claude Haiku 4.5 · Oct 15, 2025

329

days

Usual gap

291

days

Recent gaps

Claude Haiku 4.5 · Oct 2025

358

Claude 3.5 Haiku · Oct 2024

223

Every Claude Haiku release

Newest first. See the full line with every card →

Oct 15, 2025Claude Haiku 4.5
Oct 22, 2024Claude 3.5 Haiku
Mar 13, 2024Claude 3 Haiku · this page

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