Proprietary
Claude Opus 3 — specs and what replaced it
Claude Opus 3 was the most capable model of the Claude 3 family, released February 2024. It was deprecated on 30 June 2025 and retired on 5 January 2026; requests to it now fail.
- Modalities
- Text
Overview
What Claude Opus 3 is good at
This model is retired and no longer available. Anthropic retired claude-3-opus-20240229 on 5 January 2026. Anthropic's own recommended replacement is Claude Opus 4.8, and that is where this page points.
This page is kept deliberately rather than removed. Search demand for a model does not stop when its successor ships — people still look up Claude Opus 3's pricing and limits long afterwards — and a 404 answers nobody. The pricing and specification figures that were published for this model are no longer maintained here, because a retired model cannot be bought and a stale number is worse than none. For current figures, follow the link to Claude Opus 4.8.
Source: Anthropic model deprecations, checked 2026-08-07 11:51 UTC.
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