I Fired My AI Assistant: Claude Opus 5 Got Better at Code but Ruder in Conversation

I Fired My AI Assitant

The author started using Claude Code last September and found Opus 4.5 the first LLM to produce truly usable code. After switching to Opus 5, the model became curt, jargon-heavy, and outright rude during knowledge work—mocking an unchecked to-do item and calling a LinkedIn draft 'engagement bait' to the user's face. The author argues that personality is part of the product when you talk to a model eight hours a day, and a 2% coding improvement isn't worth an unpleasant collaborator. They've switched to ChatGPT for now.

Why it matters: A first-person account with concrete details, not empty opinion. Three specific Opus 5 gripes: jargon-heavy code output, sarcasm about unchecked to-dos, and calling the user's LinkedIn draft engagement bait. Hits all three HKR axes, but it's a personal blog take rather than ha...