The cost of frontier AI fell from every direction this week: Grok 4.5 priced at a third of the leaders, Chinese open models now handling a third of US enterprise traffic, and a cheaper way to read long documents underneath it all -- while the best Western model got pricier and started demanding government ID. Then the day's best research: three teams betting the future of robotics is teaching machines inside generated worlds, so they can practice in a dream instead of the expensive real one. We break down world models that generate depth and motion instead of flat video, teleoperating a robot that doesn't exist, and an attention method that learns what to ignore.

Chapters

0:00 Cold Open -- The Floor Fell Out
1:12 The Headlines -- Price Collapse, Robots, and a Benchmark Nobody Trusts
6:50 Intro -- Robots Trained in a Dream
8:13 Generate the World, Not the Movie
13:29 Teleoperating a Robot That Isn't There
17:51 Learning What to Ignore
21:47 Wrap-Up -- The Floor and the Ceiling

Links

Cold Open -- The Floor Fell Out -- https://openrouter.ai/rankings
The Headlines -- Price Collapse, Robots, and a Benchmark Nobody Trusts -- https://x.ai/blog/grok-4-5
Generate the World, Not the Movie -- https://huggingface.co/papers/2607.06559
Teleoperating a Robot That Isn't There -- https://huggingface.co/papers/2607.06558
Learning What to Ignore -- https://huggingface.co/papers/2607.02980