claude-3-sonnet-20240229

claude-3-sonnet-20240229 (Anthropic) was shut down on Jul 21, 2025; calls to it fail. Anthropic recommends claude-sonnet-5-5 instead.

Provider

Anthropic

Shutdown

Jul 21, 2025 (already shut down)

Announced

Jan 21, 2025

Replace with

claude-sonnet-5-5

• Dates apply to Anthropic-operated platforms (Claude API, Claude Platform on AWS, Claude on Google Cloud (Anthropic managed), Microsoft Foundry). Bedrock and Vertex AI (Google managed) set their own dates - see provider aws-bedrock / vertex-ai.

Source: https://platform.claude.com/docs/en/about-claude/model-deprecations · report a wrong date