The consensus is clear, and it's not even a debate: Fable 5 was a monumental leap in capability, and the community is now in a state of collective grief now that it's gone. Long story short, Fable is to Opus 4.8 what a senior architect is to a junior dev. It doesn't just write code; it plans, researches, and executes entire complex projects with minimal handholding, often correcting the user's own flawed premises. The thread is full of mind-blowing examples of what people accomplished in the short time it was available: - Insane Coding Feats: Users one-shotted entire games (a 3D animal hybrid game, a near-perfect Dungeon Master 2 fangame recreation), built complex apps from scratch in hours (Outlook add-ins, mobile stat-tracking apps), and had Fable autonomously refactor and improve entire SaaS codebases. - Next-Level Reasoning: It wasn't just for devs. Users had it analyze their golf swing from a year's worth of videos better than a pro, crunch billions of lines of horse racing data, and compare complex legal documents more effectively than an expensive law firm. - Autonomous Agency: A key theme is Fable's ability to use tools, manage sub-agents, and maintain context over long, complex tasks without getting confused. It could plan and execute a multi-week project backlog in a single session. The overwhelming sentiment is that going back to Opus feels like a painful downgrade, with many calling it "a caveman" in comparison. However, one user did note that for non-coding tasks, it felt more like a minor improvement than a total revolution. So yeah, the hype was real. Now everyone's just sitting here wondering when we'll get our super-intelligent partner back.