Claude 3.5 Sonnet

retired Retired

Claude 3.5 Sonnet is a retired Anthropic LLM API model. and shut down on Oct 28, 2025. Migrate any code that still calls claude-3-5-sonnet-20241022 to anthropic/claude-sonnet-4-6.

Recommended action: migrate to anthropic/claude-sonnet-4-6.

Lifecycle & specs

Provider
Anthropic
API model ID
claude-3-5-sonnet-20241022
Status
retired
Released
Oct 22, 2024
Deprecated
Aug 13, 2025
Retirement date
Oct 28, 2025
Replacement
anthropic/claude-sonnet-4-6
Context window
200,000 tokens

Source: official Anthropic documentation ↗ · ✓ verified