CoreWeave stock rises 11% in deal to power Anthropic’s Claude

core weave As infrastructure demand continues to rise, the company announced Friday that it has signed a multi-year agreement with Anthropic to power its Claude artificial intelligence model.

NeoCloud’s stock price rose 11% on the news.

“With the addition of Anthropic, 9 out of 10 leading AI model providers now rely on CoreWeave’s platform, reflecting the growing demand for infrastructure that can support AI at scale,” CoreWeave said in an announcement.

The transaction will take place the next day Meta Pledged to spend an additional $21 billion on AI cloud providers. The deal is in addition to a previous $14.2 billion commitment announced in September.

CoreWeave declined to disclose the amount of its contract with Anthropic. The cloud provider told CNBC that of the top 10 basic AI models, the only one it hasn’t partnered with yet is Elon Musk’s xAI.

The agreement with Anthropic will initially focus on a “phased infrastructure rollout” and could be expanded, according to the announcement.

CoreWeave operates hundreds of thousands of data centers. Nvidia A graphics processing unit that powers AI models. While hyperscalers are building their own data centers, major companies such as microsoftOpenAI, and google We also use CoreWeave’s infrastructure to handle spikes in demand.

CoreWeave, which went public last year, has taken on significant debt to finance numerous AI deals. CNBC previously reported that the company had $21 billion in debt on its balance sheet at the end of 2025, and added another $8.5 billion in funding for new infrastructure in March.

The company announced yesterday that it would raise $3 billion in new debt to fund the deal with Meta.

“We are committed to capitalizing on the opportunities of this generation to significantly grow and expand our business,” CoreWeave CEO Mike Intrater said Friday on CNBC’s “Squawk on the Street.”

“We need the opportunity to expand, and expansion is expensive,” Intrater added.

Anthropic’s Claude and its AI-powered coding assistant Claude Code have exploded in popularity this year. Anthropic announced Monday that its annual run rate has exceeded $30 billion, up from $9 billion at the end of 2025.