Perplexity's open-weights decision models Decider v1.2 and Decider Flash v1.2 have launched on OpenRouter, accepting text or image inputs and returning typed answers with probabilities. Decider v1.2 is a new 27B checkpoint succeeding v1.1, while Decider Flash v1.2 is a 4B version with faster speed and half the cost.
Perplexity's open-weights multimodal decision model Decider v1.1 is now live on OpenRouter, accepting text, JSON, or image inputs and returning typed answers with probabilities, priced at $0.02 per million input tokens with free output.
Amazon has released Strands Decider 2B, an open-source decision model fine-tuned from Alibaba's Qwen3.5-2B with roughly 2 billion parameters. It scores predefined options directly to support action decisions in agent workflows. The model is available for free on Hugging Face under an Apache 2.0 license and is part of AWS's experimental Strands Labs agent-development project.