Before diving into the guide, it is essential to understand what a skill actually is. In the context of Copilot Cowork, a skill is a custom instruction set that dictates exactly how the AI should ...
Claude Mythos 5 128K 1M Mythos-class (restricted); $10.00 / $50.00; released 2026-06-09 GPT-4.1 ⭐ 128K 1M Knowledge cutoff June 2024; $2.00 / $8.00; retired from ChatGPT Feb 13, 2026; API still ...