Quantinuum Breaks Error-Correction World Record by 10x, Validating Its Leading Path to Fault-Tolerant Quantum Computing by 2029
Quantinuum achieved a world-record 99.9995% logical fidelity (five errors per million operations) on its Helios commercial quantum computer, a 10x improvement over its own September 2026 record. The result is 100x better than the best published error rate from any other hardware modality, held by Google Quantum AI on a superconducting system, and demonstrated exponential error suppression as code distance increased by a record factor of 12. The company says the performance is within the target range for Apollo, its planned fault-tolerant quantum computer expected by 2029, and that the architecture may require significantly fewer qubits than competing approaches.
Key figures
- Logical fidelity
- 99.9995%
- Logical error rate
- five errors per million operations
- Apollo target availability
- 2029
- Code distance error reduction factor
- 12
- Error rate improvement vs own record
- 10x
- Helix physical qubits per logical qubit
- 10
- Color code physical qubits per logical qubit
- up to 37
- Error rate improvement vs best other modality
- 100x
AI analysis
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