Terminal-Bench-Science agents solve just 30%

Terminal-Bench-Science 0.1 gives AI agents 70 expert-curated scientific workflows, and Claude Opus 5 resolves only 30.0% of them. The benchmark’s release report says each model ran three trials per task, with GPT-5.6 Sol at 22.4%, the strongest open model GLM 5.3 at 8.1%, and Opus 5’s full run costing $7,000. For teams building research agents, the archive’s evidence on skill-library retrieval collapse is a useful warning to measure verified end-to-end artifacts rather than trust a model leaderboard.