NexForge: Requirement-First Framework Generates Executable Agent Training Data at Scale

Jul 17, 2026

NexForge is a requirement-first framework that compiles free-form capability requirements into executable agent training data, producing 3,600 terminal tasks and 2,000 office tasks without domain-specific infrastructure. It improved Qwen3.5-35B-A3B Base from 22.5% to 52.0% on Terminal-Bench 2.0 and from 813 to 1338 Elo on GDPval; scaling to 43.2K terminal tasks reached 58.4%, surpassing Claude Opus 4.6. The resulting Nex-N2 models achieve state-of-the-art open-source performance, lifting Qwen3.5-35B-A3B to 75.3% on Terminal-Bench 2.1 and 1585 Elo on GDPval.

Why it matters: NexForge addresses the data bottleneck for training executable agents by automatically generating diverse, realistic tasks from requirements, enabling scalable improvement without manual substrate expansion.

Full story at: arXiv Software Engineering ↗