Ollama v0.40.16-rc0: pplx-decider added, API behavior fixed
Posted As of
Ollama pre-release v0.40.16-rc0 adds Perplexity's 27B decider model, and changes how the OpenAI-compatible endpoint handles default sampler values. The stable release may differ from these notes.
What happened
Based on the official Ollama GitHub release notes.
- pplx-decider, Perplexity's 27B (official) decider model fine-tuned from Qwen3.8-27B, has been added.
- The OpenAI-compatible endpoint no longer overrides the sampler defaults included in the model. If temperature or top_p is not sent, the model's own values are applied.
- A failure when continuing a conversation while switching between thinking and non-thinking models in the Responses API has been fixed. Ordering errors and duplicate events in client tool call streaming have also been fixed.
- Cloud web search responses in /api/chat are now interpreted correctly, including when they are compressed.
Our take
Users who run Ollama through the OpenAI-compatible API should check their results, since they may change when sampling parameters are not sent. This is rc0, so the content may change in the stable v0.40.16 release. I have not verified pplx-decider's benchmarks or license.
Sources and related posts
- Ollama GitHub Releases Primary source