LightOn ships full LateOn family + ColBERT-Zero alongside Sentence Transformers v6
LightOn
LightOn refreshed its full late-interaction model family on Hugging Face — colbertv2.0, LateOn, mLateOn, LateOn-Code, LateOn-Code-edge, LateOn-regularized, LateOn-hpool-regularized, Agent-ModernColBERT, ColBERT-Zero, Reason-ModernColBERT — on 17 August 2026 alongside the Sentence Transformers v6 announcement. ColBERT-Zero is the first ColBERT model contrastively pre-trained end-to-end in the multi-vector setting (55.43 nDCG@10 on BEIR).
Why it matters
LightOn consolidates its full retrieval-research stack in one Apache-2.0 surface aligned with Sentence Transformers v6; ColBERT-Zero is a practical SOTA under 150M params for low-latency retrieval.
Importance: 2/5
default
lighton
colbert
late-interaction
embedding
pylate
apache2
retrieval
information-retrieval
open-weights
Sources
official
LightOn organization on Hugging Face
official
lightonai/ColBERT-Zero model card