Yes
I've been using it for web dev tasks since it relaunched today, and it's worked fine without fallback
jimrandomh on Hacker News
In the thread “Fable 5 will default to Opus 4.8 for coding tasks”
Helped: Web dev tasks ran without fallback issues.
Got in the way: Firmware project triggered expected fallback to Opus.
… Fable 5's acceptable use policy has false positives during some coding tasks, and that's what they were talking about. But I've been using it for web dev tasks since it relaunched today, and it's worked fine without fallback. (On a firmware-customization project involving a ghidra MCP, it triggered and switched to Opus; that was sort of expected.)