Can I ask which country you're in? I have a theory that the safeguards differ depending on the user's country.

I'm in Australia, and Fable downgrades to Opus when testing for bugs in memory in a legacy C code base. If Fable starts taking initiative and writes a test case that involves writing to a null pointer, that's the end of the conversation.

As one random example, today I had it hit a refusal loop when adding a country selector dropdown to a form, presumably because it contained a “bad” country name? I hit refusals at least 2-3 times per day, sometimes many more. The worst part is it is often right in the middle of a multi-stage task, so the only option is really to switch to Opus 5 and let it defecate its absurdly verbose comments all over the rest of the edits in the turn and hope it doesn’t go on one of its tangents, then have Sol do damage control. Oh and I got approved for their “cyber verification program” blessing, which comically does absolutely nothing for Fable.