Amazon Web Services released Strands Decider 2B, an open-source decision model inspired by TypeSafe's Jev, designed for faster and cheaper automated decision-making in AI workflows. The model, built on Qwen3.5-2B, delivers calibrated choices rather than text generation and can run locally. Amazon distinguished engineer Marc Brooker developed the project after AWS customers expressed need for lightweight alternatives to full-featured LLMs for specific workflow steps.