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Anthropic · First-party API · LLM

claude-opus-4-20250514

RetiredRetired on Jun 15, 2026
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2 notices

Retired

Retired on Jun 15, 2026

Anthropic documents this retired. Claude API.

Hosting route
First-party API
Affected scope
Claude API
Replacement
None published
Announced
Jun 15, 2026
First seen by ModelClock
Oct 3, 2026

What the provider published

platform.claude.com ↗

June 15, 2026

  • We've retired the Claude Sonnet 4 model (claude-sonnet-4-20250514) and the Claude Opus 4 model (claude-opus-4-20250514). All requests to these models on the Claude API will now return an error. We recommend upgrading to Claude Sonnet 4.6 and Claude Opus 4.8 respectively. Researchers can request ongoing access through the External Researcher Access Program .

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Retired

Retired on Jun 15, 2026

Anthropic lists June 15, 2026 as the shutdown date. Listed model identifier.

Hosting route
First-party API
Affected scope
Listed model identifier
Replacement
None published
Announced
Not published
First seen by ModelClock
Oct 3, 2026

What the provider published

platform.claude.com ↗

| claude-opus-4-20250514 | Retired | April 14, 2026 | June 15, 2026 |

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