nuScenes RnB-EnCoRe — Reasoning + Waypoints (Iteration 1)
Part of the RnB-EnCoRe-SelfDriving collection from the Stanford Autonomous Systems Lab.
- 📄 Paper: https://arxiv.org/abs/2602.08167
- 💻 Code / usage: https://github.com/rnb-encore/RnB-EnCoRe-SelfDriving
This is a Qwen3-VL-4B vision-language model fine-tuned on nuScenes driving data to jointly produce natural-language driving reasoning and a future waypoint trajectory from multi-camera observations. It corresponds to iteration 1 of the RnB-EnCoRe self-driving pipeline.
For a waypoints-only variant (no intermediate reasoning), see stanfordasl/nuscenes-waypoints-model.
Model details
- Base model: Qwen/Qwen3-VL-4B-Instruct (
Qwen3VLForConditionalGeneration) - Architecture: hidden size 2560, 36 layers
- Modality: image/video + text → text
- Task: driving scene reasoning + future trajectory (waypoint) prediction on nuScenes
- Output: chain-of-thought driving rationale followed by predicted waypoints
Training
- Fine-tuned on a nuScenes VQA-driver dataset (reasoning + trajectory targets)
- Epochs: 30 (5,490 optimizer steps)
- Max sequence length: 6144
- Learning rate: 6e-5
- Dropout: 0.5
Usage
For dataset preparation, prompting, inference, and evaluation, follow the instructions in the project repository: https://github.com/rnb-encore/RnB-EnCoRe-SelfDriving
from transformers import AutoModelForImageTextToText, AutoProcessor
model_id = "stanfordasl/nuscenes-rnbencore-reasoning-waypoints"
processor = AutoProcessor.from_pretrained(model_id)
model = AutoModelForImageTextToText.from_pretrained(model_id, torch_dtype="auto", device_map="auto")
# Build a chat message with the driving camera image(s) + prompt,
# then processor.apply_chat_template(...) and model.generate(...).
# See the GitHub repo for the exact prompt format and post-processing.
Intended use & limitations
This model is a research artifact for autonomous-driving perception and planning experiments. It was trained on nuScenes and is not intended for deployment in real vehicles or safety-critical settings. Outputs may be inaccurate or unsafe; always validate in simulation before any downstream use.
Citation
If you use this model, please cite the RnB-EnCoRe self-driving work: