Evidence-backed European AI register
LightOn
Reviewed identity, roles, model listings, pricing and evidence for LightOn.
Dataset compiled 2026-08-28 · evidence over inference
Reviewed identity
- Headquarters scope
- headquarters unknown
- Headquarters country
- unknown
- Headquarters city
- unknown
- Legal entity
- SA
- Ownership
- listed (Euronext Growth Paris, ticker MLLTN)
- Founded
- 2016
- Confidence
- high
- Last verified
- 2026-08-22
Headquarters evidence
LightOn is headquartered in Paris, France.
The research candidate suggested 'EU headquarters', but its exact quote could not be reproduced from the cited current source; the claim remains unpromoted.
Evidence boundaries
Organisation listings identify a reviewed canonical record. Headquarters is independent of incorporation, registered offices, ownership, hosting and runtime. Model listings show an association in the source register; they do not by themselves establish model creation, current API availability, hosting location or infrastructure ownership.
Model listings
- mLateOn / LateOn family (late-interaction retrievers)
- Type
- embedding
- Parameters
- 0.1B–0.3B
- Context
- unknown
- Languages
- multilingual (mLateOn) / English (LateOn)
- Licence
- unknown
- Release
- 2026
- mDenseOn / DenseOn (dense retrievers)
- Type
- embedding
- Parameters
- 0.3B
- Context
- unknown
- Languages
- multilingual
- Licence
- unknown
- Release
- 2026
- LightOn-rerank-PW / LW (2B and 4B)
- Type
- reranker
- Parameters
- 2B / ~5B
- Context
- unknown
- Languages
- multilingual, text+image
- Licence
- unknown
- Release
- 2026
- LightOnOCR-2-1B / LightOnOCR-1B
- Type
- image
- Parameters
- 1B
- Context
- unknown
- Languages
- 20+ languages
- Licence
- unknown
- Release
- 2025-2026
- LateOn-Code / LateOn-Code-edge
- Type
- embedding
- Parameters
- 0.1B / 16.8M
- Context
- unknown
- Languages
- code
- Licence
- unknown
- Release
- 2026
- Type
- text
- Parameters
- 40B
- Context
- unknown
- Languages
- English/French
- Licence
- Apache-2.0
- Release
- 2023-10
- colbertv2.0 / ColBERT-Zero / Agent-ModernColBERT
- Type
- embedding
- Parameters
- 0.1B
- Context
- unknown
- Languages
- English
- Licence
- unknown
- Release
- 2024-2026
Profile note
Europe's first listed GenAI company. Now focused on document AI: OCR, retrieval (ColBERT-lineage late-interaction models) and rerankers, published openly on HuggingFace, plus a sovereign enterprise RAG platform sellable on-prem or air-gapped. Rare among European labs in publishing per-page prices in EUR.