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SoftwareFramework

Dioptra

Dioptra is a framework maintained by National Institute of Standards and Technology (NIST)145, released Jul 26, 2024. Its source code is public1 under the Creative Commons Attribution 4.0 International (to the extent NIST holds copyright)2.

Dioptra is an open-source software test platform for assessing trustworthy characteristics of AI models, built by NIST's National Cybersecurity Center of Excellence and announced by NIST in July 2024. It runs as a set of containerized services with a REST API that can be used through a web interface or a Python client to design, run, and track experiments, and its README says it supports the Measure function of the NIST AI Risk Management Framework.1457Fact reviewed Oct 1, 2026

Last reviewedEntry updated Documented release Jul 26, 2024

Availability and license

Overall availability

Public

Source code is public on GitHub, and prebuilt container images for the core services and for CPU and GPU workers are published for each version.1

Availability fact review: Oct 1, 2026

Availability is separate from permission: read the license before using or redistributing.

The license file states that work by NIST employees is not subject to copyright protection in the United States under 17 U.S.C. 105, that NIST may hold international copyright and copyright in portions assigned or licensed by its contractors, and that to the extent NIST holds copyright the software is available under CC BY 4.0.2Fact reviewed Oct 1, 2026

Component reuse rights

A readable or downloadable component is not automatically reusable. These indicators concern recorded license evidence, not system certification.
weights
Unknown — no complete fact-level rights review
code
Terms or license combinations require review
data
Unknown — no complete fact-level rights review
documentation
Unknown — no complete fact-level rights review

No complete system-rights review is recorded for this release.

Public materials checklist

Items for a framework under USASI rubric v0.2. Unknown means unassessed or insufficient evidence.
Public materials checklist for Dioptra
ItemStatusNotes and evidence
Source codeIs the source code publicly readable?PublicPublic repository in NIST's usnistgov GitHub organization.1
DocumentationIs user documentation published?PublicDocumentation on pages.nist.gov covers the platform's motivation and architecture, setup, tutorials, how-to guides, and REST API and Python client references.4
InstallationAre installation instructions or packages publicly available?PublicUsers pull versioned container images (or build them), generate a deployment folder from a cruft template, initialize it, and start the services with Docker Compose.16
Supported platformsAre supported operating systems or hardware documented?PartialThe installation guide recommends a Linux-based environment with Docker, Docker Compose, Python 3.11 or later, and Git, and the project publishes PyTorch and TensorFlow worker images for CPU and GPU. No detailed operating-system or processor-architecture support matrix was found.61
Release statusAre versioned releases published?PublicThe README gives the current release as 1.1.0, "with on-going improvements and development". Versions are published as Git tags (1.0.0 on July 26, 2024; 1.0.1 on October 28, 2024; 1.1.0 on February 19, 2026) rather than GitHub release entries.13

What it is useful for

The README lists model testing during development, acquisition, or audits; tracking experiments in trustworthy-AI research; providing a common platform for evaluations and challenges; and red-teaming in a controlled environment. The documentation's motivating example is testing models against adversarial attacks and defenses.15Fact reviewed Oct 1, 2026

Run and use notes

Documented facts only. No hardware or performance claims are made without a cited source and stated assumptions.
  • The installation guide lists Docker and Docker Compose, Python 3.11 or later on the host, and Git as prerequisites, and recommends a Linux-based environment. GPU-enabled workers are an optional configuration.64

Organization context

In the news

Dated, sourced updates in this catalog's news that mention this entry.
  1. · Policy

    NIST adopts "super intelligence" wording and introduces its CAISSI center page

    NIST says it is updating its communications to use the term "super intelligence," as directed by a September 29, 2026 executive order titled "Inaugurating the Era of Super Intelligence." As of October 1, 2026, NIST's center page describes the Center for Advancing Innovation and Standards for Super Intelligence (CAISSI), while NIST news items published through September refer to the Center for AI Standards and Innovation (CAISI). USASI is an independent project and is not affiliated with NIST or any government agency.

U.S. eligibility

Project eligibility rests on documented governing or maintaining entities, not on contributors.

Eligible · basis: U.S.-governed project

Dioptra is developed and published by NIST, a U.S. federal agency within the Department of Commerce; its repository is in NIST's usnistgov GitHub organization, and its license file states that the software is made available by NIST as a public service.128

Assessed Oct 1, 2026

Sources

  1. 1.
    usnistgov/dioptra (GitHub repository and README) (external site: github.com)

    National Institute of Standards and Technology · Repository · accessed Oct 1, 2026 · evidence reviewed Oct 1, 2026

  2. 2.
    Dioptra LICENSE (external site: raw.githubusercontent.com)

    National Institute of Standards and Technology · License · accessed Oct 1, 2026 · evidence reviewed Oct 1, 2026

  3. 3.
    Tags · usnistgov/dioptra (external site: github.com)

    National Institute of Standards and Technology · Release notes · accessed Oct 1, 2026 · evidence reviewed Oct 1, 2026

  4. 4.
    Dioptra Overview — Dioptra 1.1.0 documentation (external site: pages.nist.gov)

    National Institute of Standards and Technology · Documentation · accessed Oct 1, 2026 · evidence reviewed Oct 1, 2026

  5. 5.
    Motivation — Dioptra 1.1.0 documentation (external site: pages.nist.gov)

    National Institute of Standards and Technology · Documentation · accessed Oct 1, 2026 · evidence reviewed Oct 1, 2026

  6. 6.
    Install Dioptra — Dioptra 1.1.0 documentation (external site: pages.nist.gov)

    National Institute of Standards and Technology · Documentation · accessed Oct 1, 2026 · evidence reviewed Oct 1, 2026

  7. 7.
    Department of Commerce Announces New Guidance, Tools 270 Days Following President Biden's Executive Order on AI (external site: nist.gov)

    National Institute of Standards and Technology · Announcement · published Jul 26, 2024 · accessed Oct 1, 2026 · evidence reviewed Oct 1, 2026

  8. 8.
    About NIST (external site: nist.gov)

    National Institute of Standards and Technology · Official page · accessed Oct 1, 2026 · evidence reviewed Oct 1, 2026

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APA style

USASI. (2026, October 1). Dioptra. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/open/dioptra/

BibTeX

@misc{usasi_dioptra,
  author = {{USASI}},
  title = {Dioptra},
  year = {2026},
  month = oct,
  howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/open/dioptra/}},
  note = {United States of America Superintelligence. Last updated 2026-10-01}
}

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