Research · 9 November 2026
ResearchAgent‑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.
For product managers
For your product
What does this mean for your product?
Try it on your product More from this issueAll AI news from 9 Nov →
Get this every morning, written for your product.
Deltaday reads the whole AI news cycle and tells you what changed, whether it's real yet, and what to do about it.