No, $5B is the amount they put into Anthropic earlier this year, but that's in addition to $8B already invested.

Also, $50B is not Amazon's current stake in OpenAI, it's what they've agreed to invest.

By that measure, Amazon's stake in Anthropic is in the tens of billions.

https://www.cnbc.com/2026/04/20/amazon-invest-up-to-25-billi...