# Anthropic Claude Haiku 3.5 — deprecation status

> Yes — Claude Haiku 3.5 is retired. Anthropic deprecated it on December 19, 2025 and shut it down on February 19, 2026; API requests to it now fail. The recommended replacement is Claude Haiku 4.5.

The fast, cheap Claude that handled classification and routing work for most of 2025, and the last Haiku before the 4.5 generation. Retired February 2026.

## Facts

| Field | Value |
| --- | --- |
| Provider | Anthropic |
| Model id | `claude-3-5-haiku-20241022` |
| Status | Retired |
| Aliases | `claude-3-5-haiku-latest` |
| Released | October 22, 2024 |
| Deprecated | December 19, 2025 |
| Shutdown | February 19, 2026 (161 days ago) |
| Last verified | July 30, 2026 |

## Replacement

- **Claude Haiku 4.5** (`claude-haiku-4-5-20251001`) · recommended — https://modeldeprecations.dev/anthropic/claude-haiku-4-5-20251001
  - Haiku 4.5 is substantially more capable at a similar price point, and supports extended thinking, which Haiku 3.5 did not.
  - Parameters it accepts: https://modelparams.dev/models/anthropic/claude-haiku-4-5-20251001

```diff
- "model": "claude-3-5-haiku-20241022"
+ "model": "claude-haiku-4-5-20251001"
```

## FAQ

### When did Anthropic Claude Haiku 3.5 shut down?

Anthropic Claude Haiku 3.5 shut down on February 19, 2026. API requests to it fail from that date onward.

### What replaces Anthropic Claude Haiku 3.5?

Anthropic recommends Claude Haiku 4.5 (`claude-haiku-4-5-20251001`) as the replacement for Anthropic Claude Haiku 3.5. Haiku 4.5 is substantially more capable at a similar price point, and supports extended thinking, which Haiku 3.5 did not.

### Is Anthropic Claude Haiku 3.5 still available?

No. Anthropic Claude Haiku 3.5 is retired and no longer served — it was shut down on February 19, 2026. Calls to it return an error.

### How do I migrate from Anthropic Claude Haiku 3.5 to claude-haiku-4-5-20251001?

Swap the model id in your API call: replace "claude-3-5-haiku-20241022" with "claude-haiku-4-5-20251001". Haiku 4.5 is substantially more capable at a similar price point, and supports extended thinking, which Haiku 3.5 did not.

### Does this apply to claude-3-5-haiku-latest too?

Yes. Anthropic Claude Haiku 3.5 is also published as `claude-3-5-haiku-latest`; that id shares the same lifecycle dates as `claude-3-5-haiku-20241022`.

## 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-3-5-haiku-20241022
JSON: https://modeldeprecations.dev/api/v1/models/anthropic/claude-3-5-haiku-20241022.json