# Ai2's MolmoMotion Forecasts Object Trajectories in 3D From a Language Instruction

A vision-language model that predicts where marked points will move in world coordinates aims to give robot planners and video generators a reusable, learned model of how objects move (a motion prior).

- Published: 2026-06-22T10:48:41.833Z
- Canonical: https://polylog.news/ai/2026-06-22/ai2-s-molmomotion-forecasts-object-trajectories-in-3d-from-a
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news), [Ai2](https://allenai.org/blog/molmo-motion), [arXiv](https://arxiv.org/abs/2606.18558)

The Allen Institute for AI (Ai2) released MolmoMotion, a language-guided model that forecasts the future trajectories of points attached to objects within a 3D world frame. Given a video frame, a set of 3D points marked on an object, and a…

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