By Krystal Hu (Reuters) -AI cloud provider CoreWeave has expanded its partnership with OpenAI in a new deal worth up to $6.5 billion, bringing the total value of their agreements to$22.4 billion, the latest in a series of billion-dollar deals OpenAI has signed to secure computational power. The agreement marks the third major expansion of the partnership between the two companies this year. The company behind ChatGPT struck an initial cloud deal with CoreWeave in March worth up to $11.9 billion, followe ...