PredictionError correctionPending

Xanadu targets a fault-tolerant photonic quantum computer by 2029

Due 2029

Xanadu said in November 2025 that its fault-tolerant photonic quantum computer would have up to 100,000 physical qubits and up to 1,000 logical qubits (error-protected qubits built from many physical ones) by 2029.

Predicted by: Xanadu
Type: Official company roadmap
Said on: Nov 3, 2025
Original deadline: by 2029 (2029)
Status: Pending
Counts toward: the Quantum Supremacy estimate

See it on the timeline

Xanadu targets more than 1,000 logical qubits by 2031 (due 2031)

Sources (3)

Xanadu Xanadu Expected to Become the First and Only Publicly Traded Pure Play Photonic Quantum Computing Company via Business Combination with Crane Harbor Acquisition Corp.
Primary sourceNov 3, 2025

“Xanadu is expected to have up to 100,000 physical qubits and up to 1,000 logical qubits in its fault-tolerant computer by 2029.”
The Quantum Insider Xanadu Announces SPAC Deal to Go Public, Sets Pre-Money Value at $3 Billion US
Independent coverageNov 3, 2025

“Xanadu is expected to have up to 100,000 physical qubits and up to 1,000 logical qubits in its fault-tolerant computer by 2029.”
Quantum Computing Report Xanadu to Go Public via SPAC Merger with Crane Harbor Acquisition Corp.
Independent coverageNov 3, 2025

“deliver a fully fault-tolerant quantum computer, with a target of up to 100,000 physical qubits and up to 1,000 logical qubits by 2029.”

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

Xanadu targets a fault-tolerant photonic quantum computer by 2029

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