LastKV-Wan-1.3B
480p causal text-to-video generation with LastKV, based on Wan2.1-T2V-1.3B.
FP32 generator weights from step 20,500. This is the EMA version; raw weights are also available.
Paper results
VBench scores (%, higher is better), from Table 8 of the paper.
| Model | Quality | Semantic | Total |
|---|---|---|---|
| Transformer | 83.1 | 76.5 | 81.8 |
| LastKV | 83.5 | 78.0 | 82.4 |
The paper evaluates step 20,000 EMA; this release contains step 20,500.
Full VBench breakdown (16 metrics)Individual scores from the same paper EMA evaluation (%, higher is better).
| Metric | Transformer | LastKV |
|---|---|---|
| Subject consistency | 93.2 | 93.3 |
| Background consistency | 95.0 | 95.5 |
| Temporal flickering | 97.3 | 97.3 |
| Motion smoothness | 98.5 | 98.4 |
| Dynamic degree | 81.1 | 79.2 |
| Aesthetic quality | 61.6 | 62.2 |
| Imaging quality | 64.1 | 66.7 |
| Object class | 91.5 | 93.5 |
| Multiple objects | 72.8 | 74.6 |
| Human action | 95.6 | 96.6 |
| Color | 88.0 | 87.4 |
| Spatial relationship | 66.1 | 69.6 |
| Scene | 52.9 | 53.6 |
| Appearance style | 21.0 | 22.3 |
| Temporal style | 24.0 | 24.2 |
| Overall consistency | 25.8 | 25.8 |
Use the matching LastKV implementation with config.json and the Wan2.1 VAE/text encoder.