# X-Era AI opensources 4D world action model E0.5, real-robot success rate surpasses π0.5

- Source: 机器之心 · 微信公众号
- Published: 2026-10-29T04:01:20.000Z
- RoboHot: https://robohot.news/en/items/v2gtx3aph0spkfs98mn8x7mme
- Original: https://mp.weixin.qq.com/s?__biz=MzA3MzI4MjgzMw==&mid=2651070899&idx=1&sn=79fca61238019e09fdc1d38766304109&chksm=85fb538fddf952b1f54d1175e8dbd12c3e7e23f280b2a992ca462bbf9ab6957c2b4d0893d5f5&scene=126&sessionid=1793284300#rd

## Summary

X-Era AI has open-sourced its native 4D world action model E0.5, achieving overall average success rates of 85.0% and 88.3% on the AgileX Piper dual-arm robot and the Zerith H1 humanoid robot, respectively, 13.3 and 26.7 percentage points higher than π0.5.

## Why it matters

The original text provides real-robot success rate comparisons between E0.5 and π0.5 on dual-arm and humanoid platforms, which can be used to assess the manipulation generalization performance of the 3D geometric backbone approach.