The speaker says the rationale for Grok 4's reinforcement-learning approach needs further investigation and notes that the amount of RL applied on top of Grok 4 was increased 10-fold.

“i mean that's what i mean that's what it looks like right now i mean i tell you i'm with everybody else when you look at the benchmarks it's like okay great let me get this thing inside a cursor and what's the deal let me get this thing inside of let me go in the chat let me see like actually how it does right so the vibes seem great right now i'm excited to see more adoption that comes from it you know i think it still needs to be investigated and researched as to the reason the rl paradigm like you saw that they 10x the rl that they put on top of grok4 for that and so”