Documentation

Quantinuum Nexus

How the platform fits together

Quantinuum Nexus is the developer platform inside the Quantinuum full stack. Explore its tools and services, the systems they run on and the applications built on top, and find where to start with each.

Platform releases (latest: v26.1)

Quantinuum full stack

Developer platform

Libraries and fault tolerance

Developer tools

Third-party tools we interface with.

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Catalogue

Every component, by layer

Guppy toolkit

  • Guppy

    Quantum-first programming language embedded in Python, with measurement-dependent control flow, strong types, qubit safety and compile-time metaprogramming.

    Get started
  • Selene

    Emulation framework for hybrid quantum-classical programs. Selene ships with guppylang and powers its emulator module.

    User guide
  • TKET

    Quantum SDK and optimizing compiler for building circuits, reducing their resource cost and targeting many devices and simulators.

    User guide
  • Guppy FT

    Fault-tolerance framework for Guppy. Write a program once, then encode it with quantum error correction codes such as the Steane code; the encoded program runs on Selene, through Nexus and on Helios.

    Guided workflow
  • Guppy Algorithms

    Library of reusable algorithmic primitives for Guppy programs.

    Guppy Algorithms getting started

Nexus Console

  • Systems support

    Submit, cost and monitor jobs on Quantinuum systems, and keep programs and results together in Nexus projects.

    Submit a job to Helios
  • Emulators

    Cloud-hosted emulators of Quantinuum systems for debugging and optimizing programs before using hardware.

    Quantinuum emulators for Helios
  • Guppy Playpond

    Write and run Guppy programs in the browser, with nothing to install.

    Open the Playpond

Quantinuum systems

Quantinuum applications

  • InQuanto

    Quantum computational chemistry platform for modelling molecules and materials on quantum computers.

    InQuanto documentation
  • Quantum Origin

    Software delivering provable quantum randomness, with no quantum hardware or network connection required.

    Quantum Origin documentation

Interoperability

Ecosystem programs

  • Customer support

    Direct access to Quantinuum experts.

    Support portal
  • Q-Net

    A community-driven network connecting quantum users, developers, and researchers to learn, collaborate, and accelerate real-world quantum applications.

    Learn about Q-Net
  • Startup Partner Program

    A program that provides eligible quantum startups with complimentary access to Quantinuum hardware and resources to help bring breakthrough ideas to life.

    Learn about the Startup Partner Program