Diffbrief Engineering daily

← Friday, October 16, 2026AgentsPaper

Terminal-RSI alternates verified trajectory rewriting with policy refinement

huggingface.co by Junyao Yang et al. Editor score 8/10

Terminal-RSI combines recursive rewriting of verified trajectories with critic-inheriting policy refinement, reaching 19.84% on Terminal-Bench 4.0 and 86.52% on Terminal-Bench 2.1. Its staged update recipe is relevant to training agents on long terminal tasks.

What
Terminal-RSI improves terminal agents by alternating recursive rewriting of verified trajectories with policy refinement.
Method
Its five-stage process runs from a Qwen3.8-27B base model through two RSR and two RPR stages, using critic handoff and calibrated rewards.
Why it matters
The approach is designed to turn verified behavior and partial progress into successive policy updates for terminal tasks.
stage stage stage stage produces Qwen3.8-27B basemodel RSR-1 RPR-1 RSR-2 RPR-2 Terminal-RSI-27B
Terminal-RSI alternates trajectory rewriting and policy refinement across five stages. Sketched from the article's own text.

Read on huggingface.co →

Discussion

Discussion is not switched on yet. Use Note above to keep your own thoughts on this story.

Headline, summary, brief and diagram are written by a model from the source's own text; the link, byline and numbers come from the source. Read the original before relying on a claim.

Your note

Private to you. Stored in this browser, and synced to your account when you are signed in.