Models & pricingLifecycle and reference
Model deprecations
See which Claude models are active, deprecated, or retired, and find retirement dates and recommended replacements for models and API parameters.
As safer and more capable models launch, Anthropic regularly retires older ones. Applications relying on Anthropic models may need occasional updates to keep working. Impacted customers will always be notified by email and in the documentation.
This page lists all API deprecations, along with recommended replacements.
Overview
Anthropic uses the following terms to describe the model lifecycle:
- Active: The model is fully supported and recommended for use.
- Legacy: The model will no longer receive updates and may be deprecated in the future.
- Deprecated: The model is still functional but no longer recommended. Anthropic provides a recommended replacement and assigns a retirement date.