Perplexity uploaded pplx-decider-flash-v1.2 to Hugging Face at 16:57 UTC on 15 October 2026, roughly nine hours after it uploaded pplx-decider-v1.2, the large decision model the marketing calls 27B and the model card calls 26B. The release had no launch post on the company blog; instead there was a thread from the developer account on X, a section in the Decisions API documentation, and a GGUF conversion three days later. The repository timeline shows Perplexity created pplx-decider-v1-27b on 1 October 2026, pplx-decider-v1.1-27b on 5 October, both v1.2 checkpoints on 15 October, and pplx-decider-flash-gguf-v1.2 on 18 October. The Hugging Face API reports 4,667 downloads on the base checkpoint and 9,428 on the GGUF conversion as of 4 November, and 63 likes. The model card describes a Qwen3.5-4B backbone with a separate BF16 readout head of shape [255, 2560] instead of a full-vocabulary language-model head; 25 files totalling roughly 9 GiB in BF16; parameter count listed as 4B in the API documentation, 5B in BF16 in the model card header, and