Tutorials, deep dives and product notes — built for developers.
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.
Claude Fable 5 is the new #1 for game development (80.3% Pro, 88.0% Terminal-Bench, 85.0% OSWorld). Unity C#, Godot, Roblox, Unreal C++ — updated June 9, 2026.