PredictionError correctionPending

C12 targets a utility-scale fault-tolerant quantum computer in 2033

Due 2033

C12 says Panopeia, planned for 2033, will be its utility-scale system for universal quantum computation, combining Styx modules to reach more than 100,000 physical carbon nanotube qubits and nearly 800 logical qubits (error-protected qubits) in a single cryostat.

Predicted by: C12 Quantum Electronics
Type: Official company roadmap
Said on: Apr 17, 2026
Original deadline: in 2033 (2033)
Status: Pending
Counts toward: the Quantum Supremacy estimate

See it on the timeline

C12 targets 8,500 qubits and at least 128 logical qubits in 2032 (due 2032)
DARPA expects a utility-scale quantum computer to be built by 2033 (due 2033)

Sources (2)

C12 C12 unveils roadmap to useful fault-tolerant quantum computing by 2033
Primary sourceApr 17, 2026

“Panopeia (2033) represents the transition to an integrated utility-scale quantum system, capable of supporting universal quantum computation. The architecture combines Styx modules to target more than 100,000 physical qubits and nearly 800 logical qubits”
The Quantum Insider C12 Unveils Roadmap, Targets Useful Fault-tolerant Quantum Computing by 2033
Independent coverageApr 17, 2026

“C12 unveiled a multi-generation roadmap to build fault-tolerant quantum computers using carbon nanotube spin qubits, targeting utility-scale systems by 2033.”

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

C12 targets a utility-scale fault-tolerant quantum computer in 2033

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