Hmm all leaks had said this would be Claude 5. Wonder if it was a last minute demotion due to performance. Would explain the few days' delay as well.

trash_cat 6 hours ago | parent | next [-]

I think the naming schemes are quite arbitrary at this point. Going to 5 would come with massive expectations that wouldn't meet reality.

	▲	mrandish 6 hours ago \| parent \| next [-]
		After the negative reactions to GPT 5, we may see model versioning that asymptotically approaches the next whole number without ever reaching it. "New for 2030: Claude 4.9.2!"
	▲	Squarex 6 hours ago \| parent \| prev [-]
		the standard used to be that major version means a new base model / full retrain... but now it is arbitrary i guess

cornedor 6 hours ago | parent | prev | next [-]

Leaks were mentioning Sonnet 5 and I guess later (a combination of) Opus 4.6

scrollop 5 hours ago | parent | prev [-]

Sonnet 5 was mentioned initially.