SoftBank injects $450M into Graphcore as it bets on a Nvidia alternative

What’s the deal? SoftBankDealroom has a profile for this one. Try Dealroom → has injected more than $450M into Graphcore, the Bristol-based AI chip company it acquired in July 2024 for more than $600M. The investment was revealed through a Companies House filing showing Graphcore issued a single share valued at approximately $457M.

A person familiar with the arrangement told CNBC that the latest injection represents only a portion of the funding Graphcore is expected to receive from SoftBank this year.

Graphcore was founded in 2016 by Nigel Toon and Simon Knowles. Its chips — called Intelligence Processing Units (IPUs) — are designed specifically for AI workloads, positioned as an alternative to Nvidia’s dominant GPUs.

At its peak, Graphcore was valued at approximately $2.8B following backing from Microsoft and Sequoia, and was widely described as the UK’s answer to Nvidia. It never achieved that ambition commercially: a landmark Microsoft deal fell through, the company was forced to exit China due to export control restrictions, and revenue reached only $4M in 2023 — far short of the $1B target its co-founder had publicly set in 2019. Toon stepped down from the company following the SoftBank acquisition.

Why now? SoftBank has been assembling an increasingly coherent semiconductor portfolio. Alongside Graphcore, it owns Arm Holdings — which designs the chip architecture that powers most of the world’s smartphones — and acquired Ampere Computing in 2025.

Founder Masayoshi Son has publicly said Graphcore’s chip expertise complements Arm, and the group is positioning itself as a broad-based AI infrastructure player. Graphcore’s next phase of expansion is expected to focus heavily on India, where it has announced plans to invest up to £1B in a new AI campus in Bengaluru.

What could go wrong? Graphcore’s commercial track record before the SoftBank acquisition was poor, and the structural challenge it faced — competing against Nvidia’s entrenched position and developer ecosystem — has not changed.

SoftBank is essentially betting that access to its capital, global relationships, and complementary chip assets can unlock what Graphcore could not achieve independently. That is a significant assumption.

The $450M+ injection is also described as only part of the funding expected this year, suggesting the capital requirements are substantial.

The signal: The investment is part of SoftBank’s increasingly ambitious bet that the AI era will require an alternative to Nvidia’s dominance — and that owning a portfolio of chip companies across different architectures and use cases is the right way to play it. Whether Graphcore can be revived as a commercially meaningful AI chip company, or whether it becomes primarily a research and engineering asset within SoftBank’s broader AI infrastructure ambitions, remains the central open question.

Sources:
CNBC
Tech Funding News
Graphcore
WSJ

Image credit:
Graphcore

J.V.