Opus 4.8 is nearly unusable at the moment. Making extremely obvious errors, failing to debug issues even after being prompted with the exact line of code where the problem is. It should be illegal not to disclose serious degradations of performance while still charging full price. It may just be my region's datacentres degraded or something. The company is so opaque about what's happening, it's impossible to know what is actually going on.

The optimistic take is they're preparing to relaunch Fable 5 in the next day or so and siphoning off power for that. Perhaps they're doing a snap retraining to strip out any cybersecurity capability.