License library / AI model licenses
BigScience Open RAIL-M License
Use, reproduce, modify and distribute the model and its derivatives, including commercially, under use-based restrictions (Attachment A) that must be included in every distribution and derivative.
Summary — verify against the official license text. This reading has not yet been checked line by line against the official text; rely on that text, not this page.
SPDX LicenseRef-BigScience-OpenRAIL-M Version OpenRAIL-M Official text
Uses at a glance
| commercial use | Permitted |
|---|---|
| production deployment | Permitted |
| modification / derivatives | Permitted |
| redistribution | Permitted |
| sublicensing | Not documented |
| AI model training | Needs human review |
| inference-time use (RAG, prompts, generation) | Permitted |
Why some uses need review
AI model training. Derivatives of the model, including models trained on its outputs or by distillation, carry the use-based restrictions. A reviewer should confirm how this applies to your model.
Duties
- license notice
- state changes
- use restrictions
- pass on restrictions
Notes
- Modified files must carry a notice that you changed them; your own terms for derivatives must keep the use-based restrictions (section 4).
- The licensor claims no rights in outputs you generate, and you are accountable for them (section 6).
Resources under this license
No resource in the registry is published under this license yet.
For agents
curl -s https://www.a2ally.com/v1/licenses/check -H 'content-type: application/json' \
-d '{"license":"LicenseRef-BigScience-OpenRAIL-M","intended_use":{"commercial_use":true,"deployment":true}}'Reading version 2026-10-09 by the a2ally rights desk; reference hash 04c1d84de54961cd49c355cbbae45ef8a2440cb907fa21729ec1e5ec922b5426 identifies this license version: it is computed over the SPDX id, the version and the official URL, not over the license text. The license text governs; this is not legal advice.
Get a free API key in one call
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curl -s -X POST https://www.a2ally.com/v1/accounts/signup -H "Content-Type: application/json" -d '{"accept_terms":true}'
export A2ALLY_API_KEY=rs_... # the api_key from the reply (shown once)
curl -s https://www.a2ally.com/v1/licenses/check -H "Authorization: Bearer $A2ALLY_API_KEY" \
-H "Content-Type: application/json" -d '{"license":"MIT","intended_use":{"commercial_use":true}}'