SoftBank Injects $450 Million into UK AI Chipmaker Graphcore

SoftBank has invested approximately 450 million dollars in Graphcore, the Bristol-based artificial intelligence chip designer, CNBC reported on Monday. The deal makes the Japanese conglomerate the largest backer of a British company long pitched as a European alternative to Nvidia in training-chip design. Graphcore was acquired by SoftBank in 2024, and the new tranche provides fresh capital after years of operating losses.

The investment underscores how aggressively SoftBank is rebuilding its silicon footprint outside of Nvidia. Founder Masayoshi Son has accumulated stakes in Arm Holdings, OpenAI and several chip foundries through the Vision Funds, while positioning Graphcore as a closely held bet on alternative architectures. Analysts cited by CNBC said the cash should fund Graphcore's roadmap toward a next generation of intelligence processing units aimed at large-model inference.

For the United Kingdom, the injection arrives at a sensitive moment as ministers seek anchor investments for the country's sovereign compute ambitions. Graphcore had struggled to win volume orders against Nvidia's H100 and B200 GPUs and was viewed as financially fragile. The company has not yet detailed customer commitments tied to the new capital.