Anthropic’s appetite for computing power now has a number attached to it: more than US$100 billion, committed to a single cloud provider over ten years. On 20 April the AI lab and Amazon expanded their collaboration to secure up to five gigawatts of new capacity to train and run Claude, a figure that reframes the company’s quieter, parallel hunt for data centre space in Australia.
According to Anthropic’s announcement, the deal locks in access to current and future generations of Amazon’s custom Trainium silicon. Significant Trainium2 capacity comes online in the first half of 2026, with nearly 1GW of combined Trainium2 and Trainium3 capacity expected by the end of the year. Anthropic already runs Claude on more than a million Trainium2 chips.
The money moves in two directions. Anthropic is committing more than US$100 billion to AWS technologies over the decade. In return, as Amazon confirmed, the retailer is investing US$5 billion immediately and up to US$20 billion more tied to commercial milestones, on top of an earlier US$8 billion. That takes Amazon’s potential new outlay to US$25 billion.
Why one lab needs five gigawatts
Five gigawatts is a scale usually reserved for national grids, not corporate procurement. To put it in perspective, it is several times the draw of Australia’s entire operating data centre fleet.
Anthropic’s reasoning is demand-led. “Our users tell us Claude is increasingly essential to how they work, and we need to build the infrastructure to keep pace,” chief executive Dario Amodei said in the announcement. Amazon chief executive Andy Jassy framed the tie-up around cost, noting that the company’s custom silicon offers performance “at significantly lower cost.” More than 100,000 customers already run Claude models on AWS.
The AWS agreement is only one leg of a deliberately multi-cloud strategy. Anthropic’s footprint also spans Google, where it holds a 1GW-plus commitment and a 3.5GW supply agreement for Tensor Processing Units, and Microsoft. Spreading demand across three hyperscalers and two chip architectures reduces the lab’s exposure to any single supplier in a market where advanced accelerators remain scarce and power connections scarcer still.
The Australian leg of the build-out
That global picture is what makes Anthropic’s Australian activity legible. The Australian Financial Review reported, citing confidential tender documents, that Anthropic is seeking up to 1.4GW of leased data centre capacity across the country, a project it estimates could require US$12 billion to US$15 billion in combined debt and equity financing.
The tender went to a shortlist of established local operators, including CDC Data Centres, AirTrunk, NextDC, IREN and Stack Infrastructure. Initial proposals landed earlier this year, shortlisted bidders attended site meetings in Canberra, and a decision is expected within weeks. Anthropic wants roughly 1GW operational by the end of 2027 and may split the work across several providers rather than award a single contract.
Crucially, Anthropic is leasing, not building. The model mirrors its approach elsewhere: partner with industrial developers who construct gigawatt-scale campuses, then take the capacity under long-term agreements. The Amazon deal shows why that flexibility matters. When a lab has already pledged US$100 billion to one cloud, leased sovereign capacity in markets such as Australia becomes a way to add reach without owning the concrete.
The Australian push also carries a policy dimension. Anthropic became the first AI company to sign a memorandum of understanding under Australia’s National AI Plan, and Amodei met Treasurer Jim Chalmers in Canberra in April. The company has opened a Sydney office and advertised local compute roles. Anthropic declined to comment to the AFR on the tender.
Why it matters for Australia
The five-gigawatt Amazon commitment is the context Australian readers need to weigh the local 1.4GW tender. This is not a speculative expansion; it is one node in a compute strategy already backed by more than US$100 billion of contracted spend and three hyperscaler relationships.
For Australia, the stakes are concentrated in power, land and grid access. A single tenant seeking capacity comparable to the nation’s existing fleet would reshape electricity demand forecasts, planning queues and the economics of firming supply. The hyperscalers Anthropic relies on globally, including AWS, already run substantial Australian data centre operations, which means local capacity can plug into familiar operators even as ownership stays offshore.
It also sharpens a sovereignty question. Leased capacity delivers jobs, construction and tax receipts, but the compute serves a US lab’s global customer base and the intellectual property stays with Anthropic. Whether that counts as sovereign AI infrastructure, or simply foreign demand landing on Australian soil, is a debate the tender outcome will force into the open.
The near-term signal to watch is the award itself. If Anthropic splits 1.4GW across CDC, AirTrunk, NextDC and others in the coming weeks, it will confirm that the Amazon deal’s logic, secure capacity fast and diversify hard, now extends squarely into the Australian market, with the first gigawatt targeted for 2027.
Sources: Anthropic, About Amazon, w.media (reporting the Australian Financial Review).
