Strands open-sources Decider 2B for low-latency decisions inside agent workflows

What changed

Strands Agents open-sourced Decider 2B, a small decision model that selects among predefined options or produces scores instead of generating free-form text. It is built from a Qwen3.5-2B torso with a pointer head and is designed to run locally on CPU or GPU. The release includes code, weights, training data and scripts, targeting model routing, tool selection, argument checks, triage and inexpensive evaluations rather than chat or complex reasoning.