Answers: common license questions

• Can I use Llama 3 commercially?
• Can I use Unsplash photos in ads?
• Can I use Pexels photos commercially?
• MIT vs Apache 2.0: what is the difference?
• Is CC BY-NC OK for YouTube?
• Can I train an AI model on CC BY images?
• Can I use GPL code in proprietary software?
• Can I use Gemma commercially?
• Can I use Wikimedia Commons images?
• How do I check the license of an npm or PyPI package?
• Can I use CC0 commercially?
• Can I use CC BY 4.0 commercially?
• Can I use CC BY-SA 4.0 commercially?
• Can I use CC BY-NC 4.0 commercially?
• Can I use CC BY-ND 4.0 commercially?
• Can I use CC BY-NC-SA 4.0 commercially?
• Can I use CC BY-NC-ND 4.0 commercially?
• Can I use MIT commercially?
• Can I use Apache 2.0 commercially?
• Can I use BSD 3-Clause commercially?
• Can I use ISC commercially?
• Can I use LGPL 3.0 commercially?
• Can I use AGPL 3.0 commercially?
• Can I use MPL 2.0 commercially?
• Can I use Unlicense commercially?
• Can I use OFL 1.1 commercially?
• Can I use ODbL 1.0 commercially?
• Can I use BUSL 1.1 commercially?
• Can I use Elastic 2.0 commercially?
• Can I use CreativeML OpenRAIL-M commercially?
• Can I use Mistral Research (MRL) commercially?
• Can I use Qwen License commercially?
• Can I use DeepSeek License commercially?
• Can I use Llama 3.2 Community commercially?
• Can I use Llama 3.3 Community commercially?
• Can I train an AI model on CC0 material?
• Can I train an AI model on CC BY-SA 4.0 material?
• Can I train an AI model on CC BY-NC 4.0 material?
• Can I train an AI model on CC BY-ND 4.0 material?
• Can I train an AI model on ODbL 1.0 material?
• Can I train an AI model on CDLA Permissive 2.0 material?
• Can I train an AI model on MIT material?
• Can I train an AI model on Apache 2.0 material?
• Can I train an AI model on GPL 3.0 material?
• Can I train an AI model on Pexels License material?
• MIT vs BSD 3-Clause: what is the difference?
• MIT vs GPL 3.0: what is the difference?
• Apache 2.0 vs GPL 3.0: what is the difference?
• GPL 3.0 vs LGPL 3.0: what is the difference?
• GPL 3.0 vs AGPL 3.0: what is the difference?
• CC BY 4.0 vs CC BY-SA 4.0: what is the difference?
• CC0 vs CC BY 4.0: what is the difference?
• CC BY-NC 4.0 vs CC BY-NC-SA 4.0: what is the difference?
• MPL 2.0 vs LGPL 3.0: what is the difference?
• ODbL 1.0 vs CC BY 4.0: what is the difference?
• MIT vs Unlicense: what is the difference?
• Apache 2.0 vs BSD 3-Clause: what is the difference?
• Can I train AI on Unsplash photos?
• Can I use Pexels videos on a monetized YouTube channel?
• Can I use Wikipedia text commercially?
• Can I use an npm package in a commercial product?
• Can I use a PyPI package in closed-source software?
• Can I use a Hugging Face model commercially?
• Can I use code from GitHub in my product?
• Can I train an AI model on code from GitHub?

Each answer has a .md and .json twin.