Actually very close to one I'd say.
It's a "visual language action" VLA model "built on the foundations of Gemini 2.0".
As Gemini 2.0 has native language, audio and video support, I suspect it has been adapted to include native "action" data too, perhaps only on output fine-tuning rather than input/output at training stage (given its Gemini 2.0 foundation).
Natively multimodal LLM's are basically brains.
OpenVLA is basically a slightly modified, fine-tuned llama2. I found the launch/intro talk by lead author to be quite accessible: https://www.youtube.com/watch?v=-0s0v3q7mBk
> Natively multimodal LLM's are basically brains.
Absolutely not.