# Late Interaction Models

Self-hosted mirror of permissively-licensed retrieval models used by [xberg](https://github.com/xberg-io/xberg). Weights are unmodified; every file is sha256-pinned in the xberg source tree (`crates/xberg/src/late_interaction/presets.sha256sum`) and verified at download.

All models are Apache-2.0 or MIT licensed. Attribution to each upstream author below.

| Model | Upstream | License | Notes |
|---|---|---|---|
| `colbert-small-v1` | [answerdotai/answerai-colbert-small-v1](https://huggingface.co/answerdotai/answerai-colbert-small-v1) | Apache-2.0 | ColBERT late-interaction, 96d |
| `gte-moderncolbert-v1` | [lightonai/GTE-ModernColBERT-v1](https://huggingface.co/lightonai/GTE-ModernColBERT-v1) | Apache-2.0 | ColBERT late-interaction, 128d (default) |