Willow
The chip behind below-threshold error correction and verifiable quantum advantage claims.
Full Willow record →Head to head
Willow vs Azure Quantum
Willow (Google Quantum AI) and Azure Quantum (Microsoft) both sit in Quantum. Azure Quantum shipped more tracked changes in the last 30 days (5 vs 0). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Willow Google Quantum AI | Azure Quantum Microsoft |
|---|---|---|
| Segment | Quantum | Quantum |
| Version | Willow | GA |
| Entry cost | Pricing not published. Early Access Program available. | Free tier/options available. Pay-as-you-go billing varies by quantum hardware provider. |
| Pricing tiers | — | Azure Free Account / Free Tier free |
| Model stack | undisclosed | Majorana 1 · Q# · Quantinuum / IonQ / Pasqal |
| Context window | — | — |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 5 |
| Origin | United States | Global |
| Capabilities | Below-threshold error correction, 105 qubits, Quantum Echoes benchmark, quantum computing, superconducting qubits, neutral atom quantum computers, Quantum Processor, Superconducting Quantum Computing | Quantinuum + IonQ + Pasqal backends, resource estimator, Q# and Python, Q# programming language, Quantum Development Kit (QDK), Resource Estimator, Copilot for coding, Hybrid quantum computing |
Azure Quantum
Hardware from Quantinuum, IonQ and Pasqal with the Q# and resource estimator toolchain.
Full Azure Quantum record →