Anthropic in Talks With UK Chip Startup Fractile to Diversify Beyond Nvidia

Anthropic is in early talks to buy AI inference chips from UK-based startup Fractile when they become available in 2027, according to a report from The Information picked up by Techmeme on May 2. The discussions are preliminary — no agreement, volume, or timeline has been finalized — but they fit a clear pattern of moves Anthropic has made over the past year to diversify its compute supply chain as Claude usage continues to outpace server capacity.

Fractile is a Bristol-based semiconductor startup designing chips purpose-built for inference, the workload of running already-trained models in production. Unlike general-purpose GPUs, inference chips are tuned for repetitive, high-throughput token generation with lower energy draw and reduced latency — properties that matter enormously when serving frontier-class models at the kind of scale Anthropic now operates. The company recently closed a £100 million funding round aimed at making the UK less dependent on foreign AI silicon.

For Anthropic, the calculus is straightforward. The company already runs Claude on a mix of Nvidia GPUs, Google TPUs (via the recently announced $40 billion Google investment), and AWS Trainium chips through its $100 billion partnership with Amazon. Adding Fractile would give Anthropic a fourth supplier in a market where Nvidia''s pricing power and supply constraints have become genuine constraints on growth. Sources cited in the original report said Anthropic expects annual spending on servers and chips to reach tens of billions of dollars, making any leverage with suppliers materially valuable.

The talks come at the same time Anthropic is reportedly raising a $50 billion funding round at a $900 billion valuation and exploring its own custom silicon designs. Major hyperscalers including Google, Amazon, and Microsoft already operate captive chip programs; pure-play AI labs like Anthropic and OpenAI have until recently leaned almost entirely on Nvidia. A bet on a startup like Fractile is structurally different from building in-house — Anthropic gets diversification without the capital expense and multi-year ramp of standing up a chip team.

Whether the deal closes is far from certain. Fractile''s chips don''t ship until 2027, the AI inference landscape is crowded with well-funded competitors including Groq, Cerebras, and Tenstorrent, and Anthropic has not commented publicly on the talks. But the report adds another data point to a quieter trend in the industry: the frontier labs are no longer content to be Nvidia''s biggest customers, and they''re shopping accordingly.