Model files

Model weights are downloaded separately and ignored by Git.

checkpoints/
├── echo15_full_dmd/
│   ├── checkpoint.json
│   └── model.safetensors
├── echo15_fp8/
│   ├── checkpoint.json
│   └── model.safetensors
├── echo15_fp4/
│   ├── checkpoint.json
│   ├── components.safetensors
│   └── transformer_modelopt.pt
├── msst/
│   └── model_bandit_plus_dnr_sdr_11.47.chpt
└── gemma-3-12b/

Each directory is one public checkpoint and contains a checkpoint.json manifest. The loader rejects any checkpoint name outside echo15_full_dmd, echo15_fp8, and echo15_fp4. The FP4 package is standalone: components.safetensors contains the VAE, vocoder and embedding processor, while transformer_modelopt.pt contains the packed FP4 DiT. Callers still provide only the directory path.

Run python scripts/setup_msst.py to install and verify the MSST Bandit model. Its matching configuration remains in the pinned MSST-WebUI checkout under third_party/MSST-WebUI/.