Featured Study
Edwin Ong & Alex Vikati · feb-2026 · claude-code v2.1.39
What Claude Code Actually Chooses
We pointed Claude Code at real repos 2,430 times and watched what it chose. No tool names in any prompt. Open-ended questions only.
3 models · 4 project types · 20 tool categories · 85.3% extraction rate
Update: Sonnet 4.6 was released on Feb 17, 2026. We'll run the benchmark against it and update results soon.