PsiQuantum

aid: psiquantum
name: PsiQuantum
description: 'PsiQuantum is a Palo Alto, California photonic quantum computing company founded in 2016 by Jeremy O''Brien,
  Terry Rudolph, Pete Shadbolt, and Mark Thompson, building utility-scale, fault-tolerant quantum computers based on single-photon
  qubits at telecom wavelength. Its Omega chipset — a silicon photonic system integrating on-chip single-photon sources, superconducting
  nanowire single-photon detectors, barium-titanate optical switches, and low-loss fiber couplers — is manufactured on 300mm
  wafers at GlobalFoundries'' flagship fab in Malta, NY, leveraging mature semiconductor processes rather than exotic cryogenic
  fabrication. The company is constructing two utility- scale, million-qubit, fault-tolerant quantum computing sites: one
  at Moreton Bay, Queensland, Australia (in partnership with the Australian and Queensland governments) and one at the Illinois
  Quantum and Microelectronics Park in Chicago, Illinois (with additional R&D at PsiLabs in Daresbury, UK and assembly at
  PsiFactory in Milpitas, CA). PsiQuantum exposes a developer surface aimed at fault-tolerant quantum algorithm researchers:
  Construct, an enterprise platform for FTQC algorithm development, resource analysis, and training; Circuit Designer, a free
  web tool for prototyping and visualizing fault-tolerant quantum circuits; Circuit Hub, a shared library of `.circuit` files;
  and two open-source Python projects on GitHub — Bartiq, a symbolic quantum resource estimator that compiles subroutine-level
  costs to global T-gate, Toffoli, qubit, and circuit-volume estimates, and QREF, an open JSON-Schema-based format for representing
  quantum algorithms as hierarchical DAGs with a Pydantic validation library and a `qref-render` visualization tool. NVIDIA''s
  CUDA-Q is integrated into Construct for accelerated simulation. PsiQuantum does not currently publish a commercial cloud-access
  REST API, OpenAPI specification, or a general-purpose quantum-execution SDK comparable to those of gate-model quantum cloud
  providers — its public developer artifacts are confined to FTQC resource-estimation tooling and algorithm-design surfaces
  — and there is no public pricing or self-serve tier for the underlying quantum hardware.'
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/psiquantum.png
tags:
- Quantum Computing
- Photonic Quantum Computing
- Fault Tolerant Quantum Computing
- FTQC
- Single Photon Qubits
- Silicon Photonics
- Quantum Resource Estimation
- Quantum Algorithms
- Quantum Software
- Omega Chipset
- Construct
- Circuit Designer
- Bartiq
- QREF
- Semiconductor
- Hardware
url: https://raw.githubusercontent.com/api-evangelist/psiquantum/refs/heads/main/apis.yml
created: '2026-05-24'
modified: '2026-05-24'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/psiquantum-domain-security.yml
- type: Website
  url: https://www.psiquantum.com
- type: About
  url: https://www.psiquantum.com/about
- type: Technology
  url: https://www.psiquantum.com/technology
- type: Research
  url: https://www.psiquantum.com/research
- type: Applications
  url: https://www.psiquantum.com/applications
- type: Software
  url: https://www.psiquantum.com/psiquantum-software
- type: CircuitDesigner
  url: https://circuits.psiquantum.com
- type: Bartiq
  url: https://github.com/PsiQ/bartiq
- type: BartiqDocs
  url: https://psiq.github.io/bartiq/
- type: QREF
  url: https://github.com/PsiQ/qref
- type: QREFDocs
  url: https://psiq.github.io/qref/
- type: CircuitHub
  url: https://github.com/PsiQ/circuit-hub
- type: GitHub
  url: https://github.com/PsiQ
- type: News
  url: https://www.psiquantum.com/news
- type: PressMaterials
  url: https://www.psiquantum.com/press-materials
- type: Careers
  url: https://www.psiquantum.com/careers
- type: Contact
  url: https://www.psiquantum.com/contact-us
- type: LinkedIn
  url: https://www.linkedin.com/company/psiquantum
- type: Twitter
  url: https://twitter.com/PsiQuantum
- type: YouTube
  url: https://www.youtube.com/@psiquantum
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com