Tier 2 Restricted open-weight
What the publisher claims: open-weights, open source
The one-liner: Open video weights with a revenue threshold and a prohibited-use annex.
The six questions
Weights are downloadable from the publisher's Hugging Face repositories.
A royalty-free grant is undercut by a $10M revenue threshold that forces large commercial users onto a negotiated paid license, plus attached use prohibitions.
Runs locally through the reference repository, Diffusers, and ComfyUI.
Public information covers architecture and a training-data partnership; the corpus and recipe are not published.
Limited.
Lightricks publishes LTX weights and a reference implementation under its own community licence, but there is no outside roadmap or discussion forum and every development decision is the company's.
License
LTXV Open Weights License 0.X; LTX-2.x Community License for later releases — license source ↗
- Entities with at least $10,000,000 in annual revenue are Commercial Entities that must obtain a separate paid Commercial Use Agreement
- Attachment A lists prohibited uses, and unauthorized commercial use by a Commercial Entity carries liquidated damages
- The training Data is explicitly not licensed under the agreement
- Transfer of fine-tunes may require a paid license under the LTX-2.x Community License
What is actually released
- weights
- reference implementation and sampling code
- model cards
- license text with attached use restrictions
Why it matters
The annex structure is the point: the license grants broad freedoms and then subtracts a long list of uses, which is how 'open weights' releases quietly reintroduce acceptable-use policy.
Sources
- https://huggingface.co/Lightricks/LTX-Video/blob/main/LTX-Video-Open-Weights-License-0.X.txt
- https://huggingface.co/Lightricks/LTX-2.5-Pre-Trained
- https://github.com/Lightricks/LTX-Video
Derived from the openness dataset behind But Is It Open? — snapshot 2026-11-07 ↗. Scores are qualitative readings of the cited evidence, not verdicts; tier measures openness, not intelligence.