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Claude 3 Haiku

Anthropic · Claude Haiku line · lightweight

Released March 13, 2024Replaced by Claude 3.5 Haiku

Claude 3 Haiku was released by Anthropic on March 13, 2024, as a lightweight model in the Claude Haiku line.

  • Release 1 of 4 in the Claude Haiku line.
  • The first release in this line.
  • Replaced by Claude 3.5 Haiku on November 4, 2024, 236 days later.
  • These days the line ships a new model about every 345 days.

What changed

The smallest Claude 3 model, with image input, available in the API from its launch day.

Sources: Anthropic

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Where the Claude Haiku line stands

Claude Haiku 5.5 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

Anthropic · lightweight line

Latest: Claude Haiku 5.5 · Oct 7, 2026

Just released17 days since the last release · usual gap 345 days

Costs a tenth of Claude Haiku 4.5 for prompts under 100K tokens while raising its computer-use score from 15.7% to 72.4%, with a 1M-token context window.

What changed in Claude Haiku 5.5 →
Days since last release
17
days
Usual gap
345
days
Recent gaps
Claude Haiku 5.5 · Oct 2026
357
Claude Haiku 4.5 · Oct 2025
345
Claude 3.5 Haiku · Nov 2024
236

Every Claude Haiku release

Newest first. See the full line with every card →

  1. Oct 7, 2026Claude Haiku 5.5
  2. Oct 15, 2025Claude Haiku 4.5
  3. Nov 4, 2024Claude 3.5 Haiku
  4. Mar 13, 2024Claude 3 Haiku · this page