I don't know the answer, but considering Meta (known for 100m+ offers) was in the rumors, and he mentions multiple labs (and many investors), and all the hype around openclaw ... I can easily see 9 figure, and would not be surprised by 1b+ "signing bonus", perhaps in the equivalent number of OpenAI shares.
alt Hacker News
I don't know the answer, but considering Meta (known for 100m+ offers) was in the rumors, and he mentions multiple labs (and many investors), and all the hype around openclaw ... I can easily see 9 figure, and would not be surprised by 1b+ "signing bonus", perhaps in the equivalent number of OpenAI shares.