CoreWeave announced Friday that it has entered a multi-year agreement with Anthropic to power its Claude artificial intelligence models as demand for infrastructure continues to climb.
Shares of the neocloud climbed 11% following the news.
“With the addition of Anthropic, nine of the leading ten AI model providers now leverage CoreWeave’s platform, reflecting the growing demand for infrastructure that can support AI at scale,” CoreWeave said in the announcement.
The deal comes one day after Meta committed to spending an additional $21 billion with the AI cloud provider. The deal adds to a prior $14.2 billion commitment announced in September.
CoreWeave declined to disclose the value of the Anthropic deal. The cloud provider told CNBC that of the top ten foundational AI models, Elon Musk‘s xAI is the one company they do not yet work with.
According to the announcement, the Anthropic deal will focus initially on a “phased infrastructure roll-out,” with the potential to expand.
CoreWeave operates data centers with hundreds of thousands of the Nvidia graphics processing units that power AI models. While hyperscalers are building out their own data centers, major companies including Microsoft, OpenAI and Google also use infrastructure from CoreWeave to meet the soaring demand.
CoreWeave, which went public last year, has taken out significant debt to finance its slew of AI deals. CNBC previously reported that the company held $21 billion in debt on its balance sheet at the end of 2025, and added another $8.5 billion to fund new infrastructure in March.
The company announced yesterday that it is raising $3 billion in fresh debt to fund its deal with Meta.
“We are focusing our energy on taking advantage of this generational opportunity to massively grow and expand our business,” CoreWeave CEO Mike Intrator said Friday on CNBC’s “Squawk on the Street.”
“We need to have an opportunity to scale, and scaling is expensive,” Intrator added.
Anthropic’s Claude and its AI-powered coding assistant Claude Code have exploded in popularity this year. Anthropic said Monday that its annual run rate topped $30 billion, up from $9 billion at the end of 2025.
CoreWeave year-to-date stock chart.
