B Grade B
Quantinuum Helios: Physical qubits
98 qubits
As stated in the source: “98-qubit trapped-ion quantum processor”
Caveats
Qubit count is the hardware design figure stated by the builder; it does not say all 98 qubits are usable at the quoted fidelities in every program.
- Set-up
- Full Helios processor as described in the paper
- Method
- Standard
- Compared only with
- results in the group “gate based”
- Measured
- Not stated
- Published
- 17 June 2026
- Measured by
- Quantinuum
- Independent of the maker
- No
- Peer-reviewed
- Yes
- Repeated by others
- Not yet
Source
A 98-qubit trapped-ion quantum computer with all-to-all connectivity, Nature (Springer Nature), vol. 655, pp. 81-86. Peer-reviewed paper. DOI: 10.1038/s41586-026-10676-4
Comparable results
| Machine | Value | Set-up | Published | Measured by | Grade | Record |
|---|---|---|---|---|---|---|
| IBM Nighthawk r2 | 120 | gate based | 31 Aug 2026 | Maker | B | r-000015 |
| Quantinuum H2 | 56 | gate based | 2025 | Maker | B | r-000022 |
| Google Willow | 105 | gate based | 9 Dec 2024 | Maker | B | r-000008 |
| Atom Computing Ytterbium atom array | 256 | gate based | 18 Nov 2024 | Maker | B | r-000036 |
| IonQ Tempo | 100 | gate based | – | Maker | B | r-000026 |
History
- 27 October 2026: added
Spotted a mistake? Report an error, quoting r-000016.