# Ai2 reports simulation-trained Molmo 2 and ManiFlow transfer to physical robot

> Original title: Trained only in ToyBlocks’ virtual world, Molmo 2 + ManiFlow stacked lettered blocks to spell a word in 15/30 attempts on a physical robo...

- Source: Ai2
- Published: 2026-11-06T14:13:56.000Z
- Bad Influence: https://badinfluence.news/items/uayb9a9io86lz464psrp8ftvf
- Original: https://x.com/allen_ai/status/2118708464864141369

## Summary

Ai2 says Molmo 2 and ManiFlow, trained only in the ToyBlocks virtual world, spelled a word with lettered blocks on a physical robot in 15 of 30 attempts. In simulation, the same models succeeded in 111 of 200 attempts. Ai2 says simulation-trained models can transfer to physical robots, though more trials are needed.

## Post

Trained only in ToyBlocks’ virtual world, Molmo 2 + ManiFlow stacked lettered blocks to spell a word in 15/30 attempts on a physical robot, versus 111/200 in simulation. 

Simulation-trained models can successfully transfer to a physical robot, though more trials are needed.

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHWcqAewW8AADtNT.jpg&mode=thumb&exp=1794182400&sig=7434aa0b40c7fbf3)