Is Anthropic Claude Sonnet 4 deprecated?
Retired
No longer available. Anthropic shut Claude Sonnet 4 down on 2026-06-15 — calls to it fail.
Lifecycle dates
- Status
- Retired
- Deprecation announced
- Shutdown date
Pricing & context
- Input
- $3.00 / M tokens
- Output
- $15.00 / M tokens
- Context window
- 200K tokens
Sources
- platform.claude.com https://platform.claude.com/docs/en/docs/about-claude/model-deprecations
- platform.claude.com https://platform.claude.com/docs/en/docs/about-claude/pricing
Verified against the source on . Dataset snapshot . Providers can change a date without notice — the link above is always the final word.
Common questions
- Is Claude Sonnet 4 deprecated?
- No longer available. Anthropic shut Claude Sonnet 4 down on 2026-06-15 — calls to it fail.
- When does Claude Sonnet 4 shut down?
- Anthropic has announced 2026-06-15 as the shutdown date for Claude Sonnet 4.
- What does Claude Sonnet 4 cost?
- $3.00 per million input tokens and $15.00 per million output tokens, as last verified on 2026-07-18.
- What can I use instead of Claude Sonnet 4?
- Active alternatives from Anthropic include Claude Haiku 4.5, Claude Sonnet 5, Claude Sonnet 4.6.