(To help people keep track: that's OpenAI (allegedly) threatening Tristan Buckmaster (NYU) to remove Levent Alpöge as a co-author. Alpöge is a well-known[0] Anthropic mathematician).

[0] https://hn.algolia.com/?query=Alpöge

(also https://news.ycombinator.com/item?id=49412947 the Hopf conjecture)