Anthropic removed more than 80% of Claude Code's system prompt for its newest models and lost nothing measurable on its coding evaluations. The advice traveling with that number, delete your instructions, is half right and dangerous at scale. Instructions that patch a model's weakness should go. Instructions that encode your company's judgment are the only asset you have been quietly accumulating, and deleting those hands your differentiation to every competitor running the same model. On...

When you always have to prompt your AI, you become the bottleneck. Here's the ladder for handing off more of the work, one loop at a time.

Everyone is comparing GPT-5.6 Sol and Claude Fable 5 on coding benchmarks. But the biggest winners of this launch may be people who never write code. Here is what real business professionals are doing with each model, and a simple playbook for choosing.