Anthropic Weighs $50 Billion Raise at $900 Billion Valuation

Anthropic is fielding preemptive offers to raise roughly $50 billion in fresh capital at a valuation between $850 billion and $900 billion, according to multiple reports this week, a deal that would more than double the Claude maker’s worth in less than three months and put it on level footing with OpenAI as the world’s most valuable AI startup.

A board decision on whether to proceed is expected in May, with the round potentially serving as Anthropic’s final private fundraise before an IPO that could come as early as October. Anthropic declined to comment.

The pricing reflects a sharp acceleration. Anthropic raised $30 billion in Series G funding in February at a $380 billion post-money valuation, led by GIC and Coatue. A round at the new terms would more than double that figure in roughly three months and edge past the $852 billion post-money valuation OpenAI reached when it closed its own record round on March 31.

Revenue Growth Has Outpaced Every Prior Round

The new pricing tracks Anthropic’s revenue trajectory more than its product cadence. The company said on April 7 that its annualized run-rate revenue had surpassed $30 billion, up from approximately $9 billion at the end of 2025. At the time of the Series G in February, Anthropic disclosed a $14 billion run rate; by April it had more than doubled.

Enterprise demand is doing most of the work. The number of business customers each spending more than $1 million annually with Anthropic has now exceeded 1,000, doubling in less than two months from the 500-plus figure cited at the Series G announcement. Anthropic has said roughly 80% of its business comes from enterprise customers — a profile that supports valuation multiples consumer-heavy peers struggle to defend.

A large share of that revenue is concentrated in a single product line. Claude Code, Anthropic’s agentic coding platform, was generating $2.5 billion in run-rate revenue as of the Series G disclosure, with weekly active users doubling since the start of 2026. The company has continued to broaden the surface area of its products, recently rolling out a Claude Design feature for prototyping and wiring Claude into Photoshop, Blender, and Ableton through the Model Context Protocol.

The Compute Spend Behind the Valuation

The round is being weighed against a backdrop of multi-decade infrastructure commitments that Anthropic has lined up over the past month. On April 20, Amazon announced an additional $5 billion equity investment in Anthropic, with up to $20 billion more tied to commercial milestones, bringing the cloud provider’s total commitment to roughly $33 billion. Under the same agreement, Anthropic committed to spend more than $100 billion on AWS technologies — including Trainium and Graviton chips — over the next decade and secured up to 5 gigawatts of AWS capacity.

Four days later, Google said it would invest up to $40 billion in Anthropic, starting with $10 billion in cash at the same $350 billion pre-money mark used in February, plus up to $30 billion more tied to performance targets. Google Cloud separately committed roughly 5 gigawatts of TPU capacity, building on the Google–Broadcom partnership Anthropic announced on April 7. Add Microsoft’s $5 billion commitment and Nvidia’s up to $10 billion pledge, and Anthropic’s cash-plus-compute stack now spans every major US AI infrastructure provider.

Those are the same providers whose own global capex push to build out AI data centers is being justified, in part, by anchor tenants like Anthropic and OpenAI. Alphabet on April 29 raised its 2026 capex guidance to $180–$190 billion, and Amazon is expected to spend roughly $200 billion this year. The new equity round would give Anthropic the cash needed to honor its compute commitments without leaning entirely on supplier-financed structures.

What the $900 Billion Number Actually Signals

A $900 billion valuation for a company that crossed $30 billion in run-rate revenue this month implies a roughly 30x multiple — rich on its face, but in line with growth that triples the run rate in four months and an enterprise mix that is rewriting how AI-native startups are valued across the board. Anthropic’s secondary-market shares were already trading at an implied $1 trillion valuation on platforms like Forge Global earlier in April, according to multiple reports, suggesting the primary round may be priced at a discount to where late-stage holders are willing to transact.

The competitive context cuts the other way for OpenAI. ChatGPT’s maker disclosed a $25 billion ARR figure for February and has not publicly revised it since, even as its restructured deal with Microsoft has reset the commercial terms of the partnership that produced GPT-4 and GPT-5. Anthropic crossing OpenAI on revenue, valuation, or both — within the same calendar quarter — would mark the first reordering of the frontier-lab hierarchy since the launch of ChatGPT.

What to watch next: whether Anthropic’s board signs off on the round at the high end of the $850–$900 billion range or the low end; which of the existing strategic investors (Google, Amazon, Nvidia, Microsoft) participate in the new equity round versus stick to their compute-linked commitments; and whether the IPO timeline holds. A public listing at or above $900 billion would be one of the largest tech debuts on record, and would set the comparable that every subsequent AI fundraise — OpenAI’s included — is measured against.