Atlas Large Behavior Model (Boston Dynamics + TRI LBM)
PricePrice not published
Where it stands
23newer robotics models since its release
- Praxis-130 Sep 2026
- Helix 2.517 Sep 2026
- UnifoLM-WLA-1.010 Sep 2026
- Skild S1 (Skild Brain)25 Aug 2026
- Generalist GEN-1.519 Aug 2026
The 5 newest are listed. All robotics models
- Weights
- Closed weights.
How to call it
2 ways to use Atlas Large Behavior Model (Boston Dynamics + TRI LBM).
| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Not available (internal research policy for Atlas) | bostondynamics.com | ||
| TRI LBM Eval (open simulation benchmark, not the model) | github.com |
Pricing
Price not published.
No price source linked.
Specs
- Input
- Images and text
- Output
- Robot actions
- Context window
- Not published
- Max output
- Not published
- Open weights
- No
- Licence
- Proprietary
- Released
- 20 August 2025
- Status
- Current
- Type
- Robotics model
What stands out
What its maker marketed at launch, and what people found later, each with its source.
One language-conditioned policy for whole-body loco-manipulation
A single end-to-end policy maps images, proprioception and language to actions for the full 50-DoF Atlas at 30 Hz, combining stepping, crouching and center-of-mass shifts with dexterous manipulation in long-horizon tasks, replacing separate walking and manipulation controllers.
Diffusion Transformer with flow matching
450M-parameter Diffusion Transformer trained with a flow-matching objective, predicting 48-step action chunks (1.6 s); trained on Atlas teleop data, the Atlas Manipulation Test Stand, TRI’s Ramen dataset and simulation co-training.
Inference-time speed-up
Policies can run 1.5-2x faster than the human demos at inference time without retraining by rescaling action timing.
Pretraining cuts task data by up to 80%
TRI’s LBM study (~1,700 h of robot data, 1,800 real and 47,000+ sim rollouts) found pretrained LBMs need up to 80% less task-specific data.
Notes
Research collaboration announced Aug 2025 (Toyota release: https://newsroom.toyota.eu/ai-powered-robot-by-boston-dynamics-and-toyota-research-institute-takes-a-key-step-towards-general-purpose-humanoids/). The production electric Atlas (CES 2026) also integrates Google DeepMind foundation models (Gemini Robotics); Hyundai trains Atlas on parts logistics at its Georgia RMAC (2026-09-22). No public weights or API for the Atlas LBM. Exact announcement day (2025-08-20) is from press coverage dated 2025-08-20/21.