Google Quantum AI
Below-threshold error correction demonstrated on the 105-qubit Willow chip.
Full Google Quantum AI record →Head to head
Google Quantum AI vs Quantinuum Helios
Google Quantum AI (Google) and Quantinuum Helios (Quantinuum) both sit in Quantum. Google Quantum AI shipped more tracked changes in the last 30 days (7 vs 6). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Google Quantum AI | Quantinuum Helios Quantinuum |
|---|---|---|
| Segment | Quantum | Quantum |
| Version | Cirq | Helios |
| Entry cost | Free and open-source software (Cirq) | Hardware-as-a-service / access via Nexus cloud or on-premise. Pricing is not published (contact sales). |
| Pricing tiers | Cirq Open Source Library free | — |
| Model stack | Cirq · Willow · Willow QPU | Guppy / TKET · Helios · Helios trapped-ion QPU |
| Context window | — | — |
| Public API | ||
| Routes models | ||
| Changes / 30d | 7 | 6 |
| Origin | Global | Global |
| Capabilities | 105 physical qubits, below-threshold error correction, Cirq toolchain, Quantum programming framework, Quantum circuit simulation, Noise modeling and experiments, Quantum Virtual Machine, Open source Python library | all-to-all connectivity, 99.9%+ 2Q fidelity, real-time conditional logic, Hardware-as-a-Service, On-premise access, Cloud access, 99.921% Two-qubit gate fidelity, 99.921% two-qubit gate fidelity |
Quantinuum Helios
Highest published two-qubit fidelities, all-to-all connectivity, real-time classical control.
Full Quantinuum Helios record →