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Google Quantum AIIBM Quantum Platform
| Attribute | Google Quantum AI | IBM Quantum Platform IBM |
|---|---|---|
| Segment | Quantum | Quantum |
| Version | Cirq | Qiskit |
| Entry cost | Free and open-source software (Cirq) | Free tier · from $2,880/min |
| Pricing tiers | Cirq Open Source Library free | Open Plan free · Pay-As-You-Go Plan $5760 · Flex Plan $4320 · Premium Plan $2880 |
| Model stack | Cirq · Willow · Willow QPU | 100+ qubit processors · 100+ qubit quantum processing units (QPUs) · IBM Quantum fleet (100+ qubit processors) |
| Context window | — | 5000 two-qubit gates |
| Public API | ||
| Routes models | ||
| Changes / 30d | 7 | 13 |
| 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 | 156-qubit Heron r2, Qiskit Runtime primitives, dynamic circuits, error mitigation, Quantum computer access, Qiskit Runtime, Qiskit Functions catalog, Error mitigation |