License library / AI model licenses
Llama 3.1 Community License Agreement
Use, reproduce, distribute, copy and modify the Llama 3.1 materials, including commercially, subject to the Acceptable Use Policy, attribution and naming duties, and a separate license for services above 700 million monthly active users.
SPDX LicenseRef-Llama-3.1-Community Version 3.1 Official text
Uses at a glance
| commercial use | Permitted |
|---|---|
| production deployment | Permitted |
| modification / derivatives | Permitted |
| redistribution | Permitted |
| sublicensing | Prohibited |
| AI model training | Needs human review |
| inference-time use (RAG, prompts, generation) | Permitted |
Why some uses need review
AI model training. The license lets you use Llama 3.1 and its outputs to build other models, but a model you distribute that was created, trained or improved with Llama materials must have a name beginning with "Llama" and comes under the agreement's duties. A reviewer should confirm how this applies to your model.
Duties
- give attribution / keep the notice
- license notice
- follow the acceptable-use policy
- model name prefix
- user threshold
Notes
- Redistributing the materials or a product built on them requires a copy of the agreement and a prominent "Built with Llama" display (section 1.b).
- If your products had more than 700 million monthly active users on the release date, you need a separate license from Meta (section 2).
- Use must comply with the Llama Acceptable Use Policy.
Resources under this license
No resource in the registry is published under this license yet.
For agents
curl -s https://www.rightshold.com/v1/licenses/check -H 'content-type: application/json' \
-d '{"license":"LicenseRef-Llama-3.1-Community","intended_use":{"commercial_use":true,"deployment":true}}'Reading version 2026-10-09 by the Rightshold rights desk; reference hash c3c0eb25f1f789d4bc39fb333edd9e7c704ee18e1e9f747c0789baf78a4e8b2a identifies this license version. The license text governs; this is not legal advice.