Learn physical evolution
Mix general, driving, robot and rare-event data from pre-training.
Xiaomi Auto World Model Team November 2026
Causal World Models for Real-World Driving and Embodied Intelligence
Research highlights
From physical interactions to controllable worlds and action.
General video, driving and robot data, plus rare physical events.
Data foundationOne architecture for 1–7 views, with camera, action and layout control.
ArchitectureEfficient attention and distillation for fast, stable long rollouts.
Training recipeA persistent 3D scene from WorldRec 2.0 anchors generation across time and views.
WorldRec 2.0 frameworkGenerated futures for closed-loop evaluation and RL; world representations transfer to action models.
Results01 / Data foundation
Web and structured video for appearance, camera geometry and motion priors.
Driving logs and robot episodes with trajectories, actions and object states.
Simulation, generated and public footage covering rare events and interventions.
| Stage | Resolution | Views | General | Driving | Robot | Physical causal |
|---|---|---|---|---|---|---|
| Samples | — | — | 3.6M full · 0.5M HQ | 5.4M | 3.6M | 37K engine · 29K LVM · 12K public |
| Pre-train | 480p | 1V | Full (includes HQ) | Yes | Yes | Yes |
| Mid-train | 480p, 540p | 1–7V | HQ only | Yes | Yes | Yes |
| Post-train | 480p, 540p | 1–7V | — | Yes | Yes | — |
The 0.5M high-quality subset is part of the full general set.
02 / Capabilities
Long rollouts and edited trajectories in a seven-camera driving scene.
Seven-view generation on a logged trajectory over approximately 45 seconds.
Initial observations, ego trajectory and scene context.
Track road geometry and surrounding traffic as the ego path changes.
03 / Capability comparison
| Model | Horizon | Views | Controls | Domain | Applications | Real-time |
|---|---|---|---|---|---|---|
| LingBotWorld | Minutes | 1 | Camera pose, action | General | Interaction | ✓ |
| DreamXWorld | Minutes | 1 | Camera pose, action | General | Interaction | ✓ |
| CausalWM | Seconds | 1–4 | Action | Robot | Simulation | — |
| HorizonDrive | Minutes | 1 | Layout | Driving | Simulation | — |
| OmniDreams | Minutes | 1 / 4 / 7 | Layout | Driving | Simulation, policy | ✓ |
| X-World | ~24 s | 7 | Layout | Driving | Simulation | ✓ |
| Ours 1.0 | Minutes | 1 / 3 | Layout | Driving | Simulation | ✓ |
| Ours 2.0 | Minutes | 1–7 | Camera pose, action, layout | Physical AI | Interaction, simulation, policy | ✓ |
✓ = real-time support; — = not specified.
04 / The approach
Mix general, driving, robot and rare-event data from pre-training.
One backbone links views and time.
WorldRec 2.0 adds persistent 3D context; efficient attention enables streaming.
Single-view video learning on general and physical data.
Add multi-view data plus camera and world-control conditions.
Distillation for faster, stable long rollouts; per-scenario weights.
Static and dynamic 3D Gaussians from multi-camera observations.
05 / Measured results
PAI-Bench-G · 118 videos
Highest quality score among the compared driving methods.
PAI-Bench-G · 174 videos
Highest quality score among the compared robot methods.
TriWorldBench · multi-view
TWB score; ours leads trajectory accuracy.
| Method | TWB | Trajectory | Norm. PSNR | VQA | Flow |
|---|---|---|---|---|---|
| DreamDojo | 51.72 | 16.61 | 59.78 | 47.82 | 6.52 |
| WoVR Plus | 65.39 | 45.27 | 74.62 | 69.11 | 24.85 |
| CausalWM | 66.04 | 42.98 | 72.41 | 70.03 | 22.99 |
| Ours | 64.79 | 47.25 | 73.44 | 69.31 | 23.76 |
Camera controllability · average of two sets
Average score; best on both WorldScore (86.35) and Combined (70.08).
Depth · reported dataset average
δ1 accuracy; also the lowest AbsRel (0.058) of all methods compared.
RefSeg IoU · by time offset
IoU stays above 0.55 through t + 10 and decays at longer offsets.
TriWorldBench: 500 episodes, 50 tasks; external results from the Sept 30, 2026 leaderboard.
| Method | Views | Frames | FID ↓ | FVD ↓ | |
|---|---|---|---|---|---|
| Short | Vista | 1 | 25 | 6.90 | 89.40 |
| DriveDreamer | 6 | 8 | 14.90 | 340.80 | |
| MagicDrive-V2 | 6 | 16 | 20.91 | 94.84 | |
| Ours | 1 / 6 | 21 | 12.09 / 19.62 | 135.13 / 171.73 | |
| Long | Self-Forcing | 1 | 211 | 41.53 | 161.00 |
| LongLive | 1 | 211 | 29.05 | 161.41 | |
| Causal Forcing++ | 1 | 211 | 25.05 | 126.86 | |
| Ours | 1 / 6 | 211 | 25.57 / 58.90 | 125.74 / 203.76 |
Representative attention layer
GLA versus full softmax attention.
Causal DiT · per chunk
GLA versus full softmax attention.
Output latent frames
GLA throughput, up from 0.309 with full softmax.
FID: 37.24 (VTA) → 38.08 (GLA), +2.3%. Lower is better.
Down from 1.2% for ST-JEPA-E2E.
Up from 95.2% for ST-JEPA-E2E.
Up from 0.614 seconds for ST-JEPA-E2E.
E2E-WM-RL vs. ST-JEPA-E2E in 1,000 closed-loop simulation scenarios.
| Method | CR % ↓ | SCR % ↑ | OR % ↓ | TTC s ↑ | EP % ↑ | HDR % ↑ |
|---|---|---|---|---|---|---|
| DrivoR-E2E | 1.4 | 80.3 | 0.0 | 0.504 | 81.0 | 99.96 |
| ST-JEPA-E2E | 1.2 | 95.2 | 0.0 | 0.614 | 84.7 | 99.93 |
| E2E-WM-RL | 0.4 | 96.3 | 0.0 | 0.740 | 84.5 | 99.99 |
CR collision rate · SCR scenario completion · OR off-road rate · TTC min. time to collision · EP ego progress (84.5 vs. 84.7) · HDR driving-region accuracy.
NAVSIM v1.1 · navtest
World-model conditioning adds 0.4 PDMS points versus Base.
| Method | PDMS | NC | DAC | TTC | Comfort | Ego progress |
|---|---|---|---|---|---|---|
| Epona | 86.2 | 97.9 | 95.1 | 93.8 | 99.9 | 80.4 |
| DriveZero | 94.8 | 99.0 | 99.2 | 96.0 | 100.0 | 93.1 |
| Base | 94.9 | 99.1 | 98.7 | 97.0 | 99.9 | 92.8 |
| Base + causal world model | 95.3 | 99.1 | 99.0 | 96.6 | 99.9 | 93.6 |
LIBERO Plus · task success
75.0% weighted average. GAM reports the highest average at 85.5%.
| Method | Avg. | Layout | Camera | Robot | Language | Light |
|---|---|---|---|---|---|---|
| Fast-WAMEmb. PT: No | 49.9 | 61.4 | 16.5 | 44.5 | 67.0 | 79.9 |
| Fast-WAM-JointEmb. PT: No | 62.2 | 74.8 | 27.9 | 60.9 | 89.3 | 86.7 |
| 4D-WAMEmb. PT: Yes | 71.0 | 79.2 | 45.2 | 64.3 | 90.6 | 94.3 |
| GAMEmb. PT: Yes | 85.5 | 79.1 | 83.1 | 70.0 | 84.8 | 97.2 |
| OursEmb. PT: No | 75.0 | 81.5 | 39.6 | 74.7 | 95.3 | 97.5 |
Up from 28.48 dB on Waymo.
Dynamic-region RMSE: 6.07 → 3.99.
PSNR gain on nuScenes over WorldRec 1.0.
| Method | Dyn. PSNR | Dyn. D-RMSE | Full PSNR | Full SSIM | Full D-RMSE |
|---|---|---|---|---|---|
| STORM | 22.10 | 7.50 | 26.38 | 0.794 | 5.48 |
| DGGT | 22.80 | 6.55 | 27.41 | 0.846 | 3.47 |
| WorldRec 1.0 | 25.01 | 6.07 | 28.48 | 0.861 | 3.35 |
| WorldRec 2.0 | 25.81 | 3.99 | 29.88 | 0.865 | 2.89 |
Zero-shot PSNR +0.99 dB on Argoverse 2; after fine-tuning +1.72 dB (nuScenes), +0.97 dB (Argoverse 2).
Xiaomi Auto World Model Team
Please cite as Xiaomi Auto World Model Team using the following BibTeX:
@misc{xiaomi2026worldmodel2,
title = {Xiaomi Auto World Model 2.0: Causal World Models for Real-World Driving and Embodied Intelligence},
author = {{Xiaomi Auto World Model Team}},
year = {2026},
url = {https://arxiv.org/pdf/2611.01677}
}