Overview of quantum computers available today
This list shows a selection of the larger quantum computers as of August 2024, based on publicly available sources. The list is not exhaustive, there are many other systems that are not mentioned here.
Company | #Qubits + chip name | Bold claims | Platform + notes |
|---|---|---|---|
| IBM | 1121 “Condor”
| ~25 systems permanently available over the cloud. Claims first ‘utility’ with 127 qubits. | Superconducting + Precise gates - Limited connectivity |
| Rigetti | “Aspen-M-3” “Ankaa-2” | Some systems available over the cloud. | |
“Sycamore” | 2019: First to claim quantum supremacy | ||
| University of Science and Technology of China, Hefei | 66 | 2021: Claimed quantum supremacy | |
| IQM | 20 “Garnet” | ||
| PsiQuantum | 0 | Targets 1M qubits in a first product. Obtained over 1B dollar of investments. | Photonic + Fast - Imprecise - Different formalism |
| Quix | 20 modes | ||
| University of Science and Technology of China, Hefei | 100 modes, 50 photons, (equivalent to roughly 90 limited qubits). | 2020: Second to claim ‘quantum supremacy’ | |
| IonQ | 36 “Forte” | Achieves 35 ‘algorithmic qubits’, effectively showing that relatively complex circuits can be executed. | Trapped ions + Connectivity + Precise - Slow operations |
| Quantinuum | 32 “H1-2” | ||
56 “H2-1” | |||
| Alpine Quantum Technologies | 24 | ||
| Pasqal | 100 for computer | Cold atoms + Connectivity - Slow operations | |
| QuEra | 280 | Published experiments with up to 48 logical qubits. | |
| D-Wave | 5000 | D-Wave’s Quantum Annealers use superconducting qubits; specialized in a single algorithm: annealing. |