Anthropic tightens tool use, adds TPU capacity

Over the weekend, Anthropic did two things that look separate but are really the same story. It cut off a popular way for Claude subscribers to run third-party agent tools like OpenClaw under flat-rate plans, and on Monday it announced a fresh expansion of Google Cloud TPU capacity to feed its models and agents. The first move was about scarcity. The second was about how expensive that scarcity has become. (axios.com) The subscription change hit a corner of the Claude ecosystem that had started to treat consumer plans like a cheap fuel source for autonomous software. Anthropic’s standard Claude plans still exist, and they still include products like Claude Code, web search, connectors, and “extra usage” controls. But the company has now drawn a line around heavy third-party orchestration. In effect, if a user wants Claude to sit behind an external agent harness and grind through long, tool-calling workflows, Anthropic no longer wants that billed like ordinary chat. (claude.com) That matters because the economics of AI agents are worse than the cheerful demos suggest. A chatbot answers and stops. An agent loops. It searches, calls tools, writes files, checks its own work, and often does the whole thing again. Anthropic has spent months pushing Claude toward stronger agentic behavior in its own products and API, including more capable tool use, multi-agent research systems, and longer-running coding workflows. The more successful those features become, the less plausible an all-you-can-eat subscription starts to look. (anthropic.com) So the restriction is not a retreat from agents. It is the opposite. Anthropic is saying that agents are real enough, and resource-hungry enough, that they need enterprise-style pricing and infrastructure. Axios described the immediate trigger as Anthropic blocking Claude subscriptions from powering tools such as OpenClaw. Other coverage of the change points in the same direction: third-party agent use is still possible, but it now pushes users toward pay-as-you-go billing or direct API access instead of hiding inside a monthly plan. (axios.com) That leads directly to the TPU announcement. On April 6, Google Cloud said Anthropic is expanding its use of TPU chips and cloud services, with multiple gigawatts of TPU capacity expected to come online starting in 2027. Google said the build-out will support Anthropic’s foundation models, agents, and enterprise applications, and that the capacity will come through both Google Cloud services and Google-built TPUs supplied through Broadcom. This is not a routine cloud contract. It is industrial-scale power procurement for AI. (prnewswire.com) It also extends a deal that was already enormous. In October 2025, Anthropic said it planned to expand its Google Cloud footprint to include up to one million TPUs, in an arrangement worth tens of billions of dollars and expected to bring well over a gigawatt of capacity online in 2026. At the time, Anthropic said it served more than 300,000 business customers and that its large accounts had grown nearly sevenfold over the prior year. Monday’s announcement pushes that logic further out: more customers, more agents, more compute, more power. (anthropic.com) The striking part is not that Anthropic needs more chips. Every frontier lab does. The striking part is the timing. On the same day it told the market it is adding multiple gigawatts of TPU capacity for coming years, it was also dealing with users upset that cheap subscription access to external agent loops was ending. Those are two views of the same machine. One is the customer-facing rule change. The other is the bill. (axios.com) Anthropic has been careful not to bet on one supplier alone. The company said in October that its compute strategy spans Google TPUs, Amazon Trainium, and Nvidia GPUs, while Amazon remains its primary training partner through Project Rainier. But Google’s role is getting harder to miss. Thousands of customers already access Claude through Google Cloud, according to Monday’s announcement, including Coinbase, Cursor, Palo Alto Networks, Replit, and Shopify. The company that just narrowed cheap third-party access is also the company locking in multiple gigawatts of TPU capacity, starting in 2027. (anthropic.com)