I think the naming schemes are quite arbitrary at this point. Going to 5 would come with massive expectations that wouldn't meet reality.
replyAfter 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!"
replyOr approaching a magic number like e (Metafont) or π (TeX).
replythe standard used to be that major version means a new base model / full retrain... but now it is arbitrary i guess
replyLeaks were mentioning Sonnet 5 and I guess later (a combination of) Opus 4.6
replySonnet 5 was mentioned initially.
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