Claude Haiku 4.5
- API model IDs
- claude-haiku-4-5-20251001claude-haiku-4-5
- Context window
- 200,000 tokens
- Max output
- 64,000 tokens
- Released
- 2025-10-15
- Lifecycle
- legacy, retires not sooner than 2026-10-15
- License
- proprietary
Lifecycle verified 2026-11-05 (1 days ago). Source
Data handling
- Trains on API data by default
- No
- Retention
- 30 days
- Zero data retention
- on-request
- Residency
- global
- HIPAA BAA
- Available
- SOC 2 / FedRAMP
- SOC 2 yes, FedRAMP none
Anthropic's published certifications list for commercial services names ISO 27001:2022, ISO/IEC 42001:2023, and SOC 2 Type I and Type II. It does not name a FedRAMP authorization for the first-party Claude API. The inference_geo parameter that pins inference to US infrastructure is supported on Claude 4.6 and later models only; requests that set it on this model return a 400 error.
Verified 2026-09-08 (59 days ago). Source 1, Source 2, Source 3, Source 4, Source 5 Subprocessors
Pricing snapshot
$1 input, $5 output, per million tokens. Cached input $0.1 per million tokens. Batch requests are 50% off.
This is a snapshot verified on 2026-11-05, 1 days ago, not a live price. Confirm on the provider’s pricing page before you budget against it.
Where you can call it
- direct · claude-haiku-4-5-20251001
- bedrock · anthropic.claude-haiku-4-5
- vertex · claude-haiku-4-5@20251001
- azure · claude-haiku-4-5 Microsoft Foundry deployment name.
Anthropic's model deprecations table lists claude-haiku-4-5-20251001 as Active with a tentative retirement date of not sooner than October 15, 2026. That date has passed with no deprecation notice and no retirement date announced, so the model is still callable; Anthropic commits to at least 60 days of notice before retiring a publicly released model. Anthropic's models overview lists it among its legacy models, which is the status recorded here. Claude Haiku 5.5 is the current Haiku model.