Research · 9 November 2026
Research

Agent‑Native Primitives achieve 51.8% on Terminal‑Bench 4.0, narrowing real‑world task gap

On Terminal‑Bench 4.0, GPT‑5.6 Sol with Codex resolves 37.3% of tasks while Claude Opus 5 with Claude Code reaches 51.8%; the study attributes failures to the “last mile” of applying resources, proposing reusable agent‑native primitives.

Why it matters

Background only: the benchmark results do not specify immediate product implications.

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