Is Claude 3 Opus dead?

Yes. Claude 3 Opus was shut down on June 30, 2025, 1y 3m after its launch on March 4, 2024. The cause of death was model deprecation; it was killed by Anthropic. Classification: model deprecation. Details and the source are above.

🪦 Dead

Claude 3 Opus

Model deprecation · Model Deprecation · shut down June 30, 2025

Born: March 4, 2024
Died: June 30, 2025
Lifespan: 1y 3m
Cause of death: Model Deprecation
Killed by: Anthropic
Type: Model

Anthropic's most powerful Claude 3 model, praised for creative writing and deep analysis. Deprecated just 15 months after launch as Claude 3.5 Sonnet outperformed it at a fraction of the cost. Anthropic gave the retired model its own Substack blog as a farewell before later restoring limited access.

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Claude 3 Opus

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