Claude Opus 4.7 dropped and Erik's PrimeBus auto-fix success rate jumped from 78% to 80%+ in the first 24 hours — measured against 214 real production failures. OpenAI Codex answers with breadth. Qwen 3.6 drops 35B of open-source agentic coding on consumer hardware. Why the builder's real advantage is model-agnostic architecture — swap models like tires while the car keeps driving. Pro tip: picking the right model for the right job.