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Google Quantum AIIBM Quantum Platform
| Attribute | Google Quantum AI | IBM Quantum Platform IBM |
|---|---|---|
| Segment | Quantum | Quantum |
| Version | Willow | Heron r2 / Nighthawk |
| Entry cost | Research access only | from $96/mo |
| Pricing tiers | — | Open free · Pay-as-you-go $96 |
| Model stack | Willow QPU · Cirq | Heron r2 QPU · Qiskit Runtime |
| Context window | — | 5000 two-qubit gates |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 1 |
| Origin | Global | Global |
| Capabilities | 105 physical qubits, below-threshold error correction, Cirq toolchain | 156-qubit Heron r2, Qiskit Runtime primitives, dynamic circuits, error mitigation |