1X
1X World Model Cognitive Robotics
Artificial IntelligenceWorld Model & Redwood AI

Intelligence grounded in physics.

Predicting physical trajectory outcomes through video forecasting before motors actuate.

Architectural Foundation

Two breakthrough models, one embodied mind.

Robots in homes cannot rely on brittle pre-programmed motion scripts. They require real-time physical simulation paired with continuous conversational understanding.

Physical Simulation Core

1X World Model

Predicting Physics Before Moving

The 1X World Model is a high-resolution generative video model trained on millions of hours of real-world physical interactions. Before NEO moves its arm, it simulates the outcome of each potential action across time, selecting the trajectory with the highest evaluated probability of success.

  • •Self-supervised video forecasting conditioned on torque and velocity commands.
  • •Accurately evaluates whether a grasp, lift, or placement will succeed before execution.
  • •Allows the robot to 'hallucinate' hundreds of alternatives in milliseconds.
  • •Grounds linguistic reasoning in Newtonian physical constraints.
Vision-Language-Action (VLA)

Redwood AI

Generalist Chore and Manipulation Model

Redwood AI is 1X’s generalist end-to-end model. It seamlessly fuses conversational voice understanding, high-rate visual perception, and coordinated whole-body motor control. Redwood learns continuously from both successful chore completions and unexpected physical failures.

  • •Simultaneous whole-body balance, foot placement, and 22-DOF hand manipulation.
  • •Natural language understanding: translates conversational requests into spatial chore sequences.
  • •Zero-shot object generalization: manipulates unseen cutlery, cups, clothing, and packages.
  • •Continuous on-device refinement powered by 1X Cortex neural compute.
Locomotion Toolkit

Reinforcement Learning Mobility

Dynamic Bipedal Agility

Trained using massively parallel physics simulation and transferred directly to hardware via zero-shot sim-to-real policies. NEO navigates carpets, hardwood, uneven clutter, and staircases with compliant knee and ankle reflex loops.

  • •Natural human-like cadence in all directions: forward, reverse, lateral strafing.
  • •Active balance recovery: absorbs nudges, trips, and uneven carpet transitions.
  • •Autonomous kneeling, squatting, and reaching from low shelves or floor level.
  • •Smooth stereo visual odometry without reliance on external beacons or tags.
Research Milestones

Latest AI Breakthroughs.

From video trajectory prediction to whole-body coordinated manipulation in living rooms.

  1. 1X World ModelJan 2026

    Zero-Shot Task Generalization

    The 1X World Model now serves as NEO's primary cognitive evaluation layer. Ask NEO to clear an unfamiliar table setting, and watch it reason through spatial constraints without pre-programmed heuristics.

    Evaluation ResultsFull Paper
  2. 1X World ModelJun 2025

    Physics-Grounded Action Verification

    Published experimental findings comparing predicted trajectory outcomes against real-world execution. The model achieves 94.8% accuracy in forecasting task success prior to motor actuation.

    Evaluation ResultsFull Paper
  3. Redwood AIJun 2025

    Dynamic Locomotion Controller

    Redwood AI's latest reinforcement learning (RL) policy unlocks full bipedal agility—fluid walking, kneeling, climbing household stairs, and soft compliant ground recovery.

    Evaluation ResultsFull Paper
  4. Redwood AIMay 2025

    Coordinated Whole-Body Manipulation

    Redwood unifies bipedal balance with bilateral manipulation. NEO leans its torso and braces with one hand while reaching deeply into low cupboards with the other.

    Evaluation ResultsFull Paper
1X World Model Lab

Build real embodied intelligence with us.

We are actively hiring researchers and systems engineers to scale physical foundation models.

View All (102) Open Roles
  • AI Researcher - Robot Learning
    Sunnyvale & San Carlos, CAApply →
  • Research Scientist - Physics Video Models
    Sunnyvale, CAApply →
  • Senior Software Engineer - Robotic Fleet
    Sunnyvale, CAApply →
  • Reinforcement Learning Mobility Lead
    Sunnyvale, CAApply →
  • AI Residency Fellow (Fall 2026)
    Sunnyvale, CAApply →