Claude Code v1.0.0 ·
New Models
EntryKind: in v1.0.0,
ChangesSection of the release
Claude Opus 4
- NEW: Introduced Claude Opus 4 model for complex tasks
- Available across all providers:
- First-party API:
claude-opus-4-20250514 - AWS Bedrock:
us.anthropic.claude-opus-4-20250514-v1:0 - Google Vertex:
claude-opus-4@20250514 - Pricing: $15/$75 per million tokens
- Access Opus using
/model opus command
Claude Sonnet 4
- NEW: Introduced Claude Sonnet 4 as the new default model for daily use
- Available across all providers:
- First-party API:
claude-sonnet-4-20250514 - AWS Bedrock:
us.anthropic.claude-sonnet-4-20250514-v1:0 - Google Vertex:
claude-sonnet-4@20250514 - Claude Sonnet 3.7 remains available for AWS Bedrock users
See this entry in the whole of v1.0.0 →