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Kfir Aberman announced Lucy 2.5, a new version of the Lucy world model, saying…

2026-07-17 · 14:39 UTC ·@anitakirkovska ·0 min read

Brief

Kfir Aberman introduced Lucy 2.5 on X, asserting it’s a paradigm shift for world models that changes both the appearance of generated worlds and the interaction modalities. The announcement points readers to a detailed thread and a demo video; the repost’s author responded with “huge if true,” signaling cautious interest pending verification.

Why it matters

Kfir Aberman announced Lucy 2.5, a new version of the Lucy world model, saying “Today, we’re excited to introduce Lucy 2.5.”

Key details

  • Aberman claims Lucy 2.5 is a “paradigm shift in world models,” affecting both how generated worlds look and how users interact with them; the announcement links to a thread and video for details
  • The post was reacted to with skepticism by the poster (“huge if true”), indicating the claim is notable but unverified in this context
Source evidence

huge if true

Kfir Aberman (@AbermanKfir)

1/ Today, we’re excited to introduce Lucy 2.5.

Lucy represents a paradigm shift in world models, not just in how generated worlds look, but in how we interact with them.

A thread on what makes it a paradigm shift 👇

Video

— https://nitter.net/AbermanKfir/status/2077861986092843250#m