B Grade B
IonQ Tempo: Physical qubits
100 qubits
As stated in the source: “100 qubits”
Caveats
Vendor marketing specification; page undated. Same table lists Tempo system availability as 'Late 2026'.
- Set-up
- Vendor specification
- Method
- Standard
- Compared only with
- results in the group “gate based”
- Measured
- Not stated
- Published
- Not stated
- Measured by
- IonQ
- Independent of the maker
- No
- Peer-reviewed
- No
- Repeated by others
- Not yet
Source
IonQ quantum systems comparison, IonQ. Company technical document.
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 Helios | 98 | gate based | 17 Jun 2026 | Maker | B | r-000016 |
| 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 |
History
- 27 October 2026: added
Spotted a mistake? Report an error, quoting r-000026.