# Anthropic Claude Opus 4.5 — deprecation status

> No — Claude Opus 4.5 is not deprecated as of July 30, 2026. Anthropic has not deprecated it, but publishes November 24, 2026 (in 117 days) as the earliest date it could be retired.

The November 2025 Opus, and the oldest Opus still active. Its earliest retirement date of November 2026 is the nearest of any active Anthropic model — worth noting if it is still the default in your config.

## Facts

| Field | Value |
| --- | --- |
| Provider | Anthropic |
| Model id | `claude-opus-4-5-20251101` |
| Status | Active |
| Aliases | `claude-opus-4-5` |
| Released | November 1, 2025 |
| Shutdown (earliest) | November 24, 2026 (in 117 days) |
| Last verified | July 30, 2026 |

## FAQ

### When will Anthropic Claude Opus 4.5 shut down?

Anthropic Claude Opus 4.5 is scheduled to shut down on November 24, 2026, in 117 days. Anthropic publishes this as the earliest possible retirement date rather than a firm commitment, so it may move later — but not earlier.

### Is Anthropic Claude Opus 4.5 still available?

Yes. Anthropic Claude Opus 4.5 is active and fully supported as of July 30, 2026.

### Does this apply to claude-opus-4-5 too?

Yes. Anthropic Claude Opus 4.5 is also published as `claude-opus-4-5`; that id shares the same lifecycle dates as `claude-opus-4-5-20251101`.

## Sources

- [Anthropic model deprecations](https://platform.claude.com/docs/en/about-claude/model-deprecations) — accessed 2026-07-30

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Canonical page: https://modeldeprecations.dev/anthropic/claude-opus-4-5-20251101
JSON: https://modeldeprecations.dev/api/v1/models/anthropic/claude-opus-4-5-20251101.json