June 15, 2026 · claude-sonnet-4-20250514 · claude-sonnet-4-6 · June 15, 2026 · claude-sonnet-4-20250514 · claude-sonnet-5-5…
Anthropic Model Deprecations → · 2026-10-09T15:40:31.043Z
- | June 15, 2026 | `claude-sonnet-4-20250514` | `claude-sonnet-4-6` | + | June 15, 2026 | `claude-sonnet-4-20250514` | `claude-sonnet-5-5` | - | February 19, 2026 | `claude-3-7-sonnet-20250219` | `claude-sonnet-4-6` | + | February 19, 2026 | `claude-3-7-sonnet-20250219` | `claude-sonnet-5-5` | - | October 28, 2025 | `claude-3-5-sonnet-20240620` | `claude-sonnet-4-6` | - | October 28, 2025 | `claude-3-5-sonnet-20241022` | `claude-sonnet-4-6` | + | October 28, 2025 | `claude-3-5-sonnet-20240620` | `claude-sonnet-5-5` | + | October 28, 2025 | `claude-3-5-sonnet-20241022` | `claude-sonnet-5-5` | - | July 21, 2025 | `claude-3-sonnet-20240229` | `claude-sonnet-4-6` | + | July 21, 2025 | `claude-3-sonnet-20240229` | `claude-sonnet-5-5` | - | `temperature`, `top_p`, `top_k` | Deprecated (Claude Opus 4.7 and later) | Returns a 400 error when set to a non-default value on Claude 4.7 and later models and [Claude Mythos Preview](https://anthropic.com/glasswing)<br>. | Omit and use [prompting](https://docs.anthropic.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices)<br> to guide model behavior. | + | `temperature`, `top_p`, `top_k` | Deprecated (Claude 4.7 and later models) | Returns a 400 error when set to a non-default value on Claude 4.7 and later models and [Claude Mythos Preview](https://anthropic.com/glasswing)<br>. | Omit and use [prompting](https://docs.anthropic.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices)<br> to guide model behavior. |