PredictionHardwarePending

IonQ expects to start testing 200,000-qubit chips in 2028

Due 2028

IonQ says buying the SkyWater chip foundry lets it begin functional testing in 2028 of 200,000-qubit processors able to support more than 8,000 logical qubits (error-protected qubits built from many physical ones). Its roadmap page lists that system for 2029.

Predicted by: IonQ
Type: Official company roadmap
Said on: Jan 26, 2026
Original deadline: in 2028 (2028)
Status: Pending

SkyWater

See it on the timeline

IonQ plans two linked chips with 20,000 physical qubits in 2028 (due 2028)
IonQ promises 2 million physical and 80,000 logical qubits by 2030 (due 2030)

Sources (3)

IonQ via Business Wire IonQ to Acquire SkyWater Technology, Creating the Only Vertically Integrated Full-Stack Quantum Platform Company
Primary sourceJan 26, 2026

“As a result, the combined company is expected to pull forward functional testing of its 200,000 qubit QPUs in 2028 enabling over 8,000 ultra-high fidelity logical qubits.”
IonQ Industry-leading roadmap
Primary source

“2029 200,000 physical qubits 99.99% Physical qubit fidelity 8,000 Logical qubits”
Constellation Research IonQ acquires SkyWater for $1.8 billion, bulks up with quantum chip foundry
Independent coverageJan 26, 2026

“The combined company is expected to functionally test 200,000 qubit QPUs in 2028 for 8,000 ultra-high fidelity logical qubits.”

Added Oct 20, 2026. Spotted an error? Tell us and we will review it.

IonQ expects to start testing 200,000-qubit chips in 2028

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