[captainbland]

No but I guess it does hint at some possibilities like:

Some of the training data includes statements which happen to be identifications as Claude 3.5

It may be a tweaked distillation model from Claude 3.5

Or it could just directly be using Anthropic's API directly behind the scenes, maybe with some special access to tune any filtering to Grok's policies.

These all have interesting implications ranging from AIs being trained off other AI generated data in the wild - the inability to filter this out may be harming the model's performance.

The other two options potentially hint at relatively unimpressive development/training capabilities on Grok's side.