Because they give it away for free and offer APIs at very acceptable rates. Not that hard to figure out, Robin Hood stealing our data tax back comes to mind.

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deaux 5 hours ago | parent [-]

GitHub is free.

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notrealyme123 5 hours ago | parent [-]

User publishes to github => Copilot trains with GitHub data => MS Sells copilot => User workes for Microsoft (in the sense of giving it's labour for MS to make money)

User publishes to github => Deepseek trains with GitHub data => Deepseek gives model away for free => User did not work for Deepseek (in the sense of giving it's labour for Deepseek to make money)

	▲	deaux 3 hours ago \| parent \| next [-]
		In the first case MS is giving part of Github itself away for free.
	▲	arikrahman 5 hours ago \| parent \| prev [-]
		Exactly, it's intuitively different.