Tianyan-287

Tianyan-287 is a superconducting circuits quantum computer operated by China Telecom Quantum Group in China. It has 105 physical qubits. It ranks 22 of 53 superconducting machines in this table by physical qubit count. 10 sourced specs are in the spec sheet. 6 published benchmark or milestone records are listed below, each marked by who measured it.

Also known as Tianyan 287, Zuchongzhi 3.0-like cloud processor

Built by China Telecom Quantum Group and QuantumCTek and offered on the Tianyan cloud platform from the China Telecom Anhui Big Data Industrial Park in Hefei. The operator's December 2025 arXiv paper reports 99.90 percent single-qubit, 99.56 percent two-qubit and 98.7 percent readout fidelity, and a 74-qubit, 24-cycle random circuit sampling run of one million samples in 18.4 minutes that it says would take a classical supercomputer about 16,000 years. One qubit is non-functional and two have suppressed T1, so the working qubit count is lower than 105.

Spec sheet

Technical details as the builder or a paper states them, each with its own source. A blank is a fact we could not source, not a zero. Fidelity and coherence figures are in the benchmark table below.

Spec	Value	Basis	Note	Source
Processor	Zuchongzhi 3.0-like superconducting processor, 105 qubits	Vendor reported	Operator's paper calls it a Zuchongzhi 3.0-like processor; one qubit is non-functional.	arxiv.org
Qubit type	Frequency-tunable superconducting qubits	Vendor reported	The paper describes a 500 MHz frequency tunable range for qubits; the qubit design is not named further.	arxiv.org
Topology	Square grid lattice of 105 qubits and 182 couplers	Vendor reported	From the operator's December 2025 arXiv paper.	arxiv.org
Couplers	182	Vendor reported	Total couplers stated for the 105-qubit processor.	arxiv.org
Native gates	iSWAP-like two-qubit gates; optimal-control single-qubit gates	Vendor reported	Gate types used in the random circuit sampling calibration described in the paper.	arxiv.org
Single-qubit gate time	26 ns	Vendor reported	Fixed single-qubit gate time used in the same calibration.	arxiv.org
Two-qubit gate time	40 ns	Vendor reported	Fixed iSWAP-like gate length used when calibrating for the 74-qubit sampling task.	arxiv.org
Software	Cqlib open-source SDK	Vendor reported	The paper says the platform is accessed via Cqlib.	arxiv.org
Cloud platforms	Tianyan Quantum Cloud Platform	Vendor reported	Global Times says the machine connects to China Telecom Quantum Group cloud platform for worldwide access.	arxiv.org globaltimes.cn
Access and pricing	Commercial cloud service run by China Telecom Quantum Group	Vendor reported	No price is published in the sources consulted.	globaltimes.cn

Published benchmark figures

These are numbers the builder or a paper reports for this machine, not results from a common test. The basis column says who measured them. What the metrics mean and why they are not comparable across technologies.

Metric	Value	Measured	Basis	Note	Source
Readout fidelity	98.7%	2025-12-11	Vendor reported	Operator paper: 98.7 percent readout fidelity	arxiv.org
Single-qubit gate fidelity	99.9%	2025-12-11	Vendor reported	Operator's arXiv paper (Tianyan Quantum Group) reports 99.90 percent single-qubit gate fidelity	arxiv.org
Energy relaxation time (T1)	44.4 µs	2025-12-11	Vendor reported	Operator paper: mean operating T1 of 44.4 microseconds; one qubit non-functional and two with suppressed T1	arxiv.org
Dephasing time (T2)	41.1 µs	2025-12-11	Vendor reported	Operator paper: mean T2 (CPMG) of 41.1 microseconds	arxiv.org
Two-qubit gate fidelity	99.56%	2025-12-11	Vendor reported	Operator paper: 99.56 percent two-qubit gate fidelity (iSWAP-like gates)	arxiv.org

Milestone claims

China Telecom Quantum Group: 74-qubit, 24-cycle random circuit sampling of one million samples in 18.4 minutes on Tianyan-287, versus about 16,000 years claimed for a classical supercomputer; not independently verified (2025-12-11, vendor reported) arxiv.org

Timeline

2025-11-25: Announced
2025-11: First operational
2025-12-16: Status checked: operational

Comparable superconducting machines

Closest in physical qubit count within the same technology. Counts of different qubit types are not interchangeable across technologies.

Machine	Operator	Qubits	Status
Google Willow	Alphabet	105	operational
Zuchongzhi 3.0	USTC	105	operational
Zuchongzhi 3.2	USTC	107	operational
Rigetti Cepheus-1-108Q	Rigetti Computing	108	operational
IBM Nighthawk	IBM	120	operational
IBM Eagle	IBM	127	decommissioned