perplexity

PPLX Decider v1 (27B) is Perplexity's multimodal decision model: send application state and typed questions (noul / choice / score) and get back a probability distribution over a fixed set of answers — it returns probabilities, not generated chat text, and produces no free-form output. `state` may be a string, an object, or an array of OpenAI-style `image_url` parts carrying base64 PNG/JPEG/WebP data URLs, so it also scores images. Call POST /api/v1/decisions (POST /api/v1/systemone is the same handler).