Which models reject temperature?
Sets how random replies are: lower is more predictable, higher is more varied. Accepted: it works. Ignored: the request succeeds but the setting has no effect. Rejected: the request fails with an error.
3 models publish this; 167 don't say.
Rejected
3| Model | Company | Value | Since |
|---|---|---|---|
| Claude Sonnet 5.5claude-sonnet-5-5 | Anthropic | Rejected | in place when tracking began (October 6, 2026) |
| Claude Sonnet 5claude-sonnet-5 | Anthropic | Rejected | in place when tracking began (October 6, 2026) |
| Claude Haiku 5.5claude-haiku-5-5 | Anthropic | Rejected (non-default value returns a 400 error) | first seen October 8, 2026 |
History
- 2026-10-12 claude-haiku-5-5: temperature parameter rejected (non-default value returns a 400 error)