License answers
Can I use GPL 2.0+ commercially, in AI training or with modifications?
Run, study, change and share the software, including commercially. If you distribute it or a work based on it, you must do so under the GPL with the corresponding source. You may follow this version or any later version of the GPL.
| Use | Answer | Why |
|---|---|---|
| commercial_use | Yes | Permitted, with duties: attribution, license_notice, state_changes, share_alike, source_disclosure. |
| model_training | Needs human review | The license grants broad rights but attaches conditions (such as keeping notices) to copies and adaptations. Whether a trained model, or its output, is a copy or adaptation that carries those conditions is legally unsettled, and in some places training may fall under an exception such as fair use. A human reviewer should confirm this use for your case. |
| modification | Yes | Permitted, with duties: attribution, license_notice, state_changes, share_alike, source_disclosure. |
| redistribution | Yes | Permitted, with duties: attribution, license_notice, state_changes, share_alike, source_disclosure. |
| model_inference | Yes | Permitted, with duties: attribution, license_notice, state_changes, share_alike, source_disclosure. |
Duties
attribution, license_notice, state_changes, share_alike, source_disclosure
Check it by API (free, no key)
curl -s https://www.rightshold.com/v1/licenses/check -H 'content-type: application/json' \
-d '{"license_id":"GPL-2.0-or-later","intended_use":{"uses":["commercial_use","model_training"]}}'MCP: call check_license at https://www.rightshold.com/mcp. Connect your agent · Full reading · Legal text
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