Stanford releases Terminal-Bench-Science; Claude Opus 5 solves only ~30% of tasks

BenBlaiszik · x · 2026-08-28

Stanford researchers released Terminal-Bench-Science v0.1, a benchmark for evaluating AI agents on scientific research workflows across multiple domains. Built by the Terminal-Bench team and global domain experts, the initial version includes 70 tasks. Initial results show that even the top-performing Claude Opus 5 model solves only about 30% of the tasks. The commentary highlights the difficulty of creating robust benchmarks that resist gaming while remaining useful.

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