Sources & verification notes

Claude Haiku 4.5

• Exact identifier & access

  Dated API snapshot. Access and lifecycle apply to this exact first-party identifier.

  • Haiku 4.5 specifications ↗Anthropic · provider-authored · checked Sep 13, 2026

• First availability

  Effective Oct 15, 2025. Checked Sep 13, 2026.

  • Haiku 4.5 specifications ↗Anthropic · provider-authored · checked Sep 13, 2026

• Availability status

  Effective date not established; this is an observation. Checked Sep 13, 2026.

  • Haiku 4.5 specifications ↗Anthropic · provider-authored · checked Sep 13, 2026

• Capabilities & limits

  Effective date not established; this is an observation. Checked Sep 13, 2026.

  Tool calling and structured output have not been verified in this pilot; unknown is not unsupported.

  • Haiku 4.5 specifications ↗Anthropic · provider-authored · checked Sep 13, 2026

• Input price

  Effective date not established; this is an observation. Checked Sep 13, 2026.

  • Haiku 4.5 specifications ↗Anthropic · provider-authored · checked Sep 13, 2026

• Output price

  Effective date not established; this is an observation. Checked Sep 13, 2026.

  • Haiku 4.5 specifications ↗Anthropic · provider-authored · checked Sep 13, 2026

• Full rate card

  Effective date not established; this is an observation. Checked Sep 13, 2026.

  • Pricing ↗Anthropic · provider-authored · checked Sep 13, 2026

• License

  Effective date not established; this is an observation. Checked Sep 13, 2026.

  No downloadable-weights license is represented for this API offering.

  • Haiku 4.5 specifications ↗Anthropic · provider-authored · checked Sep 13, 2026