Francois Chaubard

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744 appearances 1 recordings 1 series first heard Jul 2026 last heard 17 Jul

Francois Chaubard’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.

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Y Combinator Startup Podcast · World Models, Explained · 17 Jul 2026 podcast

and then injects action conditioning on a very small amount of data to get to this type of world model that has the action conditioning as well, and then samples a lot from it

and then trains a policy on those synthetic-imaginated rollouts.

And the policy is so good that it's the first paper to mine diamonds in Minecraft.

I'm not a big Minecraft player, but apparently that's extremely difficult.

That's like next-level difficulty.

And it did it all on synthetic data, which is kind of crazy.

Exactly.

Yeah, all of YouTube, right?

He does do a very small amount of data to enable the action conditioning.

And that allows you to do this full simulated rollout.

But yeah, it's true.

So we have YouTube.

We have Flickr.

We have all these data sets online of people doing things.

We'd like to use it.

And no one has really gotten that to work.

And then now with these video-generated

generation models, we can take that data, create a world model out of it, add action conditioning, post-train it with action conditioning for some new task that we want it to do, chopping down wood, or making sushi, or folding my bed, or whatever it is, only a few amount of examples.

And then we can train a policy in this neural simulation.

Exactly.

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