Resource answers
Can I use these model weights commercially or for AI training?
Open-weight model licenses range from fully permissive (Apache-2.0, MIT) to use-restricted (OpenRAIL, community licenses with user caps).
How can an AI agent check whether it may use model weights?
Call a2ally's free check_license MCP tool or POST /v1/licenses/check with the license id and the intended uses; you get permitted, prohibited or needs-review with the reason and the duties.
What should I watch for with model weights? (1)
Apache-2.0 and MIT weights can be fine-tuned and deployed commercially.
What should I watch for with model weights? (2)
OpenRAIL-style licenses carry use restrictions that must pass to downstream users.
What should I watch for with model weights? (3)
Some community licenses limit commercial use above a user threshold or forbid training competing models.
Common licenses for model weights
- CC0 — commercial: Yes, training: Yes
- MIT — commercial: Yes, training: Needs human review
- MIT-0 — commercial: Yes, training: Yes
- Apache 2.0 — commercial: Yes, training: Needs human review
- GPL 3.0 — commercial: Yes, training: Needs human review
- AGPL 3.0 — commercial: Yes, training: Needs human review
- Llama 3.1 Community — commercial: Yes, training: Needs human review
- Gemma — commercial: Yes, training: Needs human review
- CreativeML OpenRAIL-M — commercial: Yes, training: Needs human review
- BigScience OpenRAIL-M — commercial: Yes, training: Needs human review
- Llama 3 Community — commercial: Yes, training: Needs human review
- Llama 3.2 Community — commercial: Yes, training: Needs human review
- Llama 3.3 Community — commercial: Yes, training: Needs human review
- Mistral Research (MRL) — commercial: No, training: Needs human review
- Qwen License — commercial: Yes, training: Needs human review
- DeepSeek License — commercial: Yes, training: Needs human review
Check by API (free)
curl -s https://www.a2ally.com/v1/licenses/check -H 'content-type: application/json' \
-d '{"license":"CC0-1.0","intended_use":{"commercial_use":true}}'Connect your agent in one line
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