Claude Sonnet 4
deprecated Retires within 30 days
Claude Sonnet 4 is a Anthropic LLM API model scheduled for retirement on Jun 15, 2026 — 22 days away. Plan a migration to anthropic/claude-sonnet-4-6.
Recommended action: migrate to
anthropic/claude-sonnet-4-6.
Access ends Jun 15, 2026
(). Lifecycle & specs
- Provider
- Anthropic
- API model ID
claude-sonnet-4-20250514- Status
- deprecated
- Released
- May 14, 2025
- Deprecated
- Apr 14, 2026
- Retirement date
- Jun 15, 2026
- Replacement
anthropic/claude-sonnet-4-6- Context window
- 200,000 tokens
- Input price
- $3.00 / 1M tokens
- Output price
- $15.00 / 1M tokens
- Knowledge cutoff
- 2025-01-31
- Pricing checked
- May 22, 2026
Source: official Anthropic documentation ↗ · ✓ verified