GitHub—GitHub, Microsoft and OpenAI sued in class action over Copilot allegedly reproducing open-source code without license compliance
On November 3, 2022 developer-attorney Matthew Butterick filed a proposed class action against GitHub, Microsoft and OpenAI alleging that GitHub Copilot reproduces verbatim or near-verbatim snippets of open-source code without preserving the original license, author attribution, or copyright notices required by permissive licenses such as MIT, Apache and GPL. The Northern District of California allowed two contract-related claims to proceed in 2024 while dismissing some DMCA claims. The case remains a flagship test of fair-use limits in code-trained generative AI.
Scoring Impact
| Topic | Direction | Relevance | Contribution |
|---|---|---|---|
| Creator Compensation | -against | secondary | -0.50 |
| Intellectual Property Ethics | -against | primary | -1.00 |
| Open Source Licensing Integrity | -against | primary | -1.00 |
| Overall incident score = | -0.715 | ||
Score = avg(topic contributions) × significance (high ×1.5) × confidence (0.57)
Evidence (1 signal)
Butterick filed Copilot class action alleging open-source license stripping by GitHub, Microsoft and OpenAI
Ars Technica reported the November 3, 2022 filing of the proposed class action by Matthew Butterick against GitHub, Microsoft and OpenAI alleging Copilot reproduces open-source code without preserving license terms, author attribution, or copyright notices required by MIT, Apache and GPL.