Supported Models
July 16, 2026 · View on GitHub
OpenDDE currently exposes one public model:
| Model name | MSA / Constraint / RNA MSA / Template | Model Parameters (M) | Data cutoff |
|---|---|---|---|
opendde_v1 | ✓ / × / ✓ / ✓ | 656 | 2021-09-30 |
Exact parameter count: 655,791,538, rounded to 656 M.
opendde_v1 uses the defaults in opendde/config/model_base.py.
Use it with:
opendde pred -i examples/input.json -o ./output -n opendde_v1
Checkpoint path by default:
$OPENDDE_ROOT_DIR/checkpoint/opendde.pt
Released Checkpoints
| Checkpoint | Use case | Download |
|---|---|---|
opendde.pt | General-purpose OpenDDE checkpoint. | opendde.pt |
opendde_abag.pt | ABAG-optimized checkpoint for antibody-antigen complexes. | opendde_abag.pt |
The release source revision is
eddd563ce96571f784012edd8f045181c8f8627d. Exact checkpoint sizes and SHA-256
digests are recorded in the package-installed
opendde/config/model_manifest.json:
| Checkpoint | Size (bytes) | SHA-256 |
|---|---|---|
opendde.pt | 2,625,249,069 | 7b826620390afad877ee2babc6a4d0df81b94d3a0be030959853d6a7da0807cc |
opendde_abag.pt | 2,625,271,509 | 5cf37441ddef2a2f148b81dd4a218ad274f996fecaf17dec901ab6cf1351713d |
opendde.pt is the default checkpoint for -n opendde_v1. Keep the
ABAG-optimized checkpoint as opendde_abag.pt and pass it explicitly with
--load_checkpoint_path.
Recommended inference defaults:
model.N_cycle = 10sample_diffusion.N_step = 200- triangle kernels:
auto
These are also the current opendde pred CLI defaults for opendde_v1.
Legacy constraint fields are ignored by the inference-only build. Use
covalent_bonds for supported covalent links.