Overview

Strands Decider 2B is an Apache-2.0 open-source decision model from AWS Strands Labs. It selects among predefined options with calibrated confidence rather than generating free-form text.

Specifications

  • Base: Qwen3.5-2B + rank-16 LoRA + pointer head (~1.9B params)
  • Latency: median ~115ms on RTX 3090; runs on CPU/Apple Silicon
  • Question types: choice, noul (yes/no), score (ordered scale)
  • Checkpoint: StrandsAgents/strands-decider-2B-hobson-v19 on Hugging Face

Use Cases

Model routing, tool selection, guardrails, triage, evaluations, hybrid agent architectures where hard decisions delegate to LLMs.

Sources