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Decision modelOpen weights

pplx-decider-v1.1-27b

Perplexity

Released
October 6, 2026
Data date
October 7, 2026

pplx-decider-v1.1-27b updates Perplexity’s first Decider model on the same Qwen3.8-27B base. Its separate readout head scores options as probabilities; this checkpoint does not include a full language-model head for free-form answers.

The weights have been publicly available under Apache 2.0 since October 6, 2026. Perplexity's announcement also states a hosted-use price of $0.02 per 1M input tokens.

Specifications and access

SpecificationValue and source
Model class
Multimodal decision model with a dedicated readout instead of a full text-generation headSource
Input modalities
Text and imagesSource
Output modalities
Scored answer options as probabilitiesSource
Checkpoint
perplexity-ai/pplx-decider-v1.1-27bSource
Base model
Qwen/Qwen3.8-27BSource
Parameters
26,085,330,160 in Safetensors metadata; 27B is the named scaleSource
License
Apache-2.0; the public Hugging Face repository is not access-gatedSource