Google is putting up to $40B into Anthropic. That's five days after Amazon's $5B.

Google is putting $10 billion into Anthropic right now, with up to $40 billion total if Anthropic hits performance targets. The round values Anthropic at $350 billion, the same mark it held in February, and comes with a commitment from Google Cloud to deliver five gigawatts of compute over the next five years. Five days earlier, Amazon wrote a $5B check of its own.

What we know

• Structure. Google commits $10B in cash immediately at a $350B post-money valuation, per Bloomberg’s report. The remaining $30B is milestone-based and blends cash with Google Cloud credits, according to TechCrunch.
• Compute. Google Cloud agreed to deliver five gigawatts of capacity to Anthropic over five years, with optional extensions. That sits on top of a separate 3.5 GW TPU deal announced earlier this month with Broadcom, which starts flowing in 2027.
• Valuation context. The $350B mark is flat from February, but the number is already stale. Investors are circling a secondary round at $800B+, per TechCrunch. Anthropic is reportedly considering an IPO as early as October.
• Dario Amodei. The Anthropic CEO tied the round to capacity: “Our users tell us Claude is increasingly essential to how they work, and we need to build the infrastructure to keep pace with rapidly growing demand.”
• Coding pressure. 9to5Google cites Bloomberg reporting that Google is “concerned about its lower position in the market for AI coding,” where Claude Code is eating Copilot’s lunch. Backing Anthropic is Google’s way of owning the upside either way.

What’s still unclear

• The performance targets. None of the outlets got specifics on the milestones that unlock the remaining $30B. Revenue? Model benchmarks? Safety audits? Anthropic and Google have both declined to say.
• How this sits next to Gemini. Alphabet is now Anthropic’s largest strategic investor and one of Claude’s biggest distribution rivals through Gemini. Google’s search and Workspace teams run internal bake-offs between the two. No one has said whether Anthropic’s Google Cloud use comes with distribution favoritism either way.
• Mythos access. Google is reportedly one of a short list of outside parties with access to Claude Mythos, Anthropic’s unreleased frontier model. Whether that access is broader post-deal is an open question.
• How Amazon takes the news. Amazon’s $13B-plus stake is structured as a convertible instrument and still the biggest single position in Anthropic. A Google raise at the same $350B valuation dilutes that stake modestly but validates it loudly.

Who reported it first

Bloomberg broke the story on Friday afternoon, sourcing “people familiar with the matter.” Reuters and CNBC picked it up within the hour. Anthropic then confirmed the round in a statement that TechCrunch and 9to5Google ran in full by Friday evening. Google has not published its own announcement as of this writing.

What this means for you

If you build on Claude, the short version is: more compute is coming. Anthropic has been rate-limiting power users for months, and Claude Code’s March-to-April quality dip was partly a capacity story. Five GW of new Google Cloud inventory and 3.5 GW of Broadcom-built TPUs in 2027 aren’t going to fix April, but they change the shape of 2027 meaningfully.

If you’re an enterprise buyer, take the Amazon and Google rounds as a tell: the hyperscalers are hedging their own model bets by financing the one lab neither of them controls. Multi-cloud Claude access across AWS Bedrock, Google Vertex, and Anthropic’s direct API is now a board-level decision at both companies, not a favor. That’s bargaining room you can price into contracts. Ask for it.

My read: Anthropic just turned itself into infrastructure. The optics are a funding round. The economics are a supply deal.