A British AI-chip startup is securing funding at a valuation of $6.5 billion following a deal with Anthropic.

      Fractile, a British startup specializing in chips for artificial intelligence, is reportedly in advanced negotiations to raise funds at a valuation over six times its worth from three months ago, according to Bloomberg. This increase follows an agreement to supply chips to Anthropic.

      The company is aiming to raise funds at a pre-money valuation of $6.5 billion, as indicated by sources familiar with the situation mentioned by Bloomberg reporters Rebecca Torrence and Dina Bass. Fractile anticipates generating approximately $600 million in this funding round, which includes some investment at a lower valuation, the sources noted. A pre-money valuation reflects a company's worth before the new investment is factored in, implying that the overall valuation will rise after the round concludes.

      While the round has not yet finalized and details may still change, both Fractile and Anthropic declined to comment.

      Fractile's valuation has surged over six times the amount it achieved in May, when it completed a $220 million funding round led by venture firms Accel, Founders Fund, and Factorial Funds, which valued the startup at around $1 billion, as reported by Bloomberg at that time. Fractile disclosed that the new funding was intended to launch its first AI chips.

      The latest negotiations value the company significantly higher, primarily due to the Anthropic deal. Fractile has reached an initial agreement to supply approximately $250 million worth of chips to the AI lab and plans to expand that contract moving forward, although the exact potential for growth has not been defined. The chips, however, are not expected to be ready for use until 2027, which is typical in the chip industry since designs often take years to go into production. The agreement with Anthropic is seen as an early commitment rather than an operational supply chain.

      Founded in 2022 by Walter Goodwin, a roboticist from the University of Oxford, Fractile focuses on designing systems that reduce the time AI takes to produce responses or solve complex problems, concentrating specifically on the process known as inference.

      Inference involves the actions a model takes after it has been trained, responding to requests each time. This aspect of computing is becoming an increasingly significant expense for AI companies. As chatbots and agents manage more queries, the cost of running these operations has led to a demand for more affordable and faster hardware.

      Fractile also highlights other potential applications beyond chatbots, suggesting that its chips could be suitable for AI systems aimed at discovering new drugs and materials, as reported by Bloomberg. These tasks require similar fast, repetitive computations, and Fractile has positioned inference speed as its main selling point, asserting that quicker responses are vital as AI evolves from providing single answers to engaging in complex reasoning.

      Fractile is among several newcomers developing chips tailored for AI inference, competing in a market primarily dominated by Nvidia. Other challengers in this space include Cerebras Systems, known for its wafer-scale chips, and several venture-backed startups like Etched.

      The sector has attracted significant investment this year, with Etched raising $700 million last week at a valuation of $21 billion and Groq securing a round this month at $3.5 billion, with Nvidia itself participating. Each of these players bets on specialized inference chips being able to outperform Nvidia’s general-purpose processors in terms of cost and speed, anticipating that chips designed for specific tasks will surpass flexible ones in that domain. Despite Nvidia's dominance in AI computing, investors continue to pour capital into this concept.

      Fractile's British origin is notable in a landscape where American firms predominantly lead. The company joins a limited group of UK chip startups challenging Nvidia, including OLIX, which raised funds recently at a $3.3 billion valuation. Founders Fund, co-founded by Peter Thiel, is among Fractile’s investors, indicating American venture capital interest in British hardware. The AI hardware sector in the UK has been expanding as investors seek the next key player in the AI industry.

      The partnership with Anthropic also reflects a broader trend of major AI labs diversifying their chip partnerships beyond Nvidia to manage costs and supply. The shortage of high-end processors has prompted these labs to explore their own silicon and support external designers. Anthropic has confirmed its efforts to design custom chips and has established computing deals with multiple suppliers. Supporting a startup like Fractile offers Anthropic another pathway to secure the hardware necessary for its models. As Anthropic grows, so does its demand for computing resources. By securing a chip supplier early—albeit one whose products will not be ready for years—it mitigates the risk associated with a market where Nvidia processors are limited and expensive.

      For Fractile, this fundraising would signify a dramatic turnaround in just a few months. The company was valued at around $1 billion in May, still engaged in launching its first chips. Now, it finds itself in talks valuing it at $6.5 billion, largely based on a single customer agreement and the market’s interest in alternatives to Nvidia,