Tutorials, deep dives and product notes — built for developers.
Interactive Terminal-Bench 2.1 leaderboard: 31 AI models ranked by CLI agentic coding. Claude Fable 5 leads at 88.0%. GPT-5.5 at 83.4%. CLI tasks — package management, git, builds, server config. Updated June 9, 2026.
The definitive SWE-bench Pro leaderboard. 31 AI models ranked by real GitHub issue resolution. Claude Fable 5 leads at 80.3%. Includes model size, license, pricing, and source links. Updated June 9, 2026.
What SWE-bench Pro actually measures, how it works (1,865 tasks, 41 repos, 123 languages), why OpenAI abandoned SWE-bench Verified, the DeepSWE audit that found 32% verifier errors, and how to use coding benchmarks correctly. The definitive explainer.