I wish copilot was better at coding Java. It's like using ChatGpt 5.1, even with Fable 5 or Opus 5 as models.

The other issue with copilot is how episodic memory works. Copilot writes memories after a task is completed, which means a lot of context is lost from the intermediate exploration, success/failure steps (turns), for what? Codex's multithreaded model adds the turn outputs to episodic memory (both agents submit their episodic data to ... themselves for summary) which gives better insight when working on multi-step problems.