Where does Perplexity sit in this race? I was aware of their "deep research" first, but that doesn't mean it was.

They've recently removed (limited) use of it from the free plan, so I guess it was costing more than they were making from paid subscribers

Weird that you're being downvoted for stating a fact.

All of the major labs are innovating and copying one another.

Anthropic has all of the other labs trying to come up with an "agentic" protocol of their own. They also seem to be way ahead on interpretability research

Deepseek came up with multi-headed latent attention, and publishing an open-source model that's huge and SOTA.

Deepmind's way ahead on world models

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