Anthropic signed a $9.1 billion computing power deal with mining company Riot (RIOT.US), causing the latters stock price to surge 25% after hours.

According to Zhitong Finance APP, informed sources revealed that AI company Anthropic PBC has reached an approximately $9.1 billion agreement with Bitcoin mining company Riot Platforms Inc. (RIOT.US), which has recently started offering AI data center computing power to external clients. This deal highlights Anthropic's efforts to secure adequate computing power to meet the growing demands of its customers, particularly for its AI model Claude. Meanwhile, Riot announced its Q2 2026 financial results after hours on Monday, with revenue exceeding expectations, but losses surpassing market forecasts. The stock surged 25% after hours.