Honeywell says it will launch a quantum computer within three months with a quantum volume of at least 64, the world's most powerful quantum computer
Under Honeywell's quantum plans, customers will connect directly to systems housed by the company. Honeywell will use quantum computing …
Context & Ripple Effects
Honeywell's announcement lands six months after IBM claimed the crown with a 53-qubit machine billed as the largest available for external use — but Honeywell is competing on quantum volume, a quality metric, rather than raw qubit count. The company also arrives with distribution already arranged: Microsoft's Azure Quantum program had already named Honeywell as one of three hardware providers for select Azure customers.
What makes this more than a benchmark claim is the delivery model — customers connect directly to systems housed by Honeywell — and what followed confirms the arc: within months Honeywell shipped the Model H1 at quantum volume 128 on a subscription basis, and by mid-2021 folded the business into a majority-owned joint venture with Cambridge Quantum.
First-order effects
- IBM's 'world's most powerful' positioning is directly contested: Honeywell claims a quantum volume of at least 64, and customers gain direct access to Honeywell-housed systems rather than going through a third-party cloud alone.
Second-order effects
- Microsoft's Azure Quantum gets a flagship tenant whose performance claim strengthens the case for its multi-vendor quantum marketplace, while IBM faces pressure to answer on quantum volume rather than qubit counts.
Third-order effects
- If the pattern holds, quantum computing consolidates into vertically integrated platforms — Honeywell's path from direct-access hardware to subscriptions to the Cambridge Quantum JV points toward standalone, capital-raising quantum businesses carved out of industrial conglomerates.
The trend: Quantum computing leadership is being contested on quality metrics like quantum volume and delivered as hosted services, pulling corporate labs toward dedicated platform businesses.