InternLM ships Intern-Decision, an open-weights multimodal decision model family

InternLM released Intern-Decision-0.8B/2B/4B on 2026-09-26, a family of structured decision models fine-tuned from Qwen3.5 that return a calibrated probability distribution over a question's options in a single forward pass instead of free-form text. The 4B variant averages 90.02 across Jevbench, Typed Decision, ToolACE, AG News and WildJailBreak, with per-checkpoint temperature calibration and ~44 ms mean latency per query on an RTX 4090. Weights are Apache-2.0 on HuggingFace with a GitHub repo and demo space.