DriveMA-2B
DriveMA-2B is the official 2B checkpoint accompanying
DriveMA: Driving Vision-Language-Action Models with Verifiable Meta-Actions.
It is fine-tuned from
Qwen3.5-2B
using the DriveMA three-stage pipeline: action-centric pretraining,
action-conditioned trajectory supervised fine-tuning, and turn-level
reinforcement learning.
DriveMA formulates driving planning as a two-turn generation process. The first
turn predicts a compact, interpretable meta-action from multi-view observations
and vehicle state. The second turn generates future waypoints conditioned on
that meta-action.
Resources
Loading
DriveMA-2B uses the same model architecture, processor, and standard loading
interface as Qwen3.5-2B:
1from transformers import AutoModelForMultimodalLM, AutoProcessor
2
3model_id = "zwc2003/DriveMA-2B"
4
5processor = AutoProcessor.from_pretrained(model_id)
6model = AutoModelForMultimodalLM.from_pretrained(
7 model_id,
8 torch_dtype="auto",
9 device_map="auto",
10)
For general multimodal inference, follow the
Qwen3.5-2B usage instructions.
To reproduce the model's driving-planning behavior, start from the
official DriveMA repository
and use its
inference scripts and prompt templates,
which implement the expected multi-view inputs, vehicle-state fields, two-turn
interaction, and output format.
Results
On the Waymo Open Dataset vision-based end-to-end planning benchmark, the paper
reports the following results for DriveMA-2B:
| RFS Overall ↑ | RFS Spotlight ↑ | ADE@5s ↓ | ADE@3s ↓ |
|---|
| 8.060 | 7.251 | 2.616 | 1.154 |
See the paper and code repository for the full evaluation protocol,
comparisons, and ablations.
Intended Use and Limitations
DriveMA-2B is intended for research on vision-language-action modeling and
end-to-end autonomous-driving planning. The released dataset repository
contains annotations; users must obtain the corresponding source image/video
assets under their original licenses and update local paths as described in the
code repository.
This model is not validated for deployment in safety-critical systems and
should not be used to control a real vehicle without independent safety
validation, system-level safeguards, and compliance with applicable laws and
regulations.
Citation
1@article{zheng2026drivema,
2 title={DriveMA: Driving Vision-Language-Action Models with Verifiable Meta-Actions},
3 author={Zheng, Weicheng and Huang, Yixin and Sun, Qiao and Li, Derun and Zhao, Hang},
4 journal={arXiv preprint arXiv:2605.31271},
5 year={2026}
6}