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- OpenAI CEO Sam Altman just posted a sick burn on Elon Musk's new AI.
- "Grok" is xAI's new ChatGPT rival, which puts "humor" into its text output.
- Altman and Musk cofounded OpenAI but later had a falling out.
The frenemyship between OpenAI CEO Sam Altman and Elon Musk just got a little spicier.
Last week, the Tesla CEO announced xAI's new project, "Grok," a ChatGPT rival that infuses crass humor and is trained on recent posts on X, the company formerly known as Twitter.