Z-Image

Open Source Attribution

AI models, model sources, and open source projects used by Z-Image

Open Source Attribution

Z-Image uses the AI models and software projects listed below. Model identities, providers, and sources are disclosed separately from the licenses that govern their use.

Core AI Models

Z-Image-Turbo

FLUX.1 Kontext [dev]

  • Provider: Black Forest Labs
  • Usage: Image watermark, text, emoji, object, and person removal
  • Integration: Self-hosted ComfyUI workflows
  • Model source: Official FLUX.1 Kontext [dev] model card
  • Published weights license: FLUX.1 [dev] Non-Commercial License. Z-Image's commercial deployment is covered by separately obtained commercial authorization.

RMBG-2.0

  • Provider: BRIA AI
  • Usage: Transparent background generation and background removal
  • Integration: Self-hosted ComfyUI workflows
  • Model source: Official BRIA RMBG-2.0 model card
  • Published weights license: BRIA RMBG-2.0 / CC BY-NC 4.0. Z-Image's commercial deployment is covered by separately obtained commercial authorization.

These models are not represented as Apache-2.0 licensed models. Their providers' model licenses and commercial agreements apply separately.

Backend and Infrastructure

Python

  • License: PSF License
  • Source: Python Software Foundation
  • Usage: Backend services and AI inference
  • Link: python.org

Database and Storage

PostgreSQL

  • License: PostgreSQL License
  • Source: PostgreSQL Global Development Group
  • Usage: Relational database
  • Link: postgresql.org

Development Tools

TypeScript

  • License: Apache-2.0
  • Source: Microsoft
  • Usage: Type-safe JavaScript
  • Link: typescriptlang.org

ESLint

  • License: MIT
  • Source: OpenJS Foundation
  • Usage: JavaScript linting
  • Link: eslint.org

Image Processing

Pillow (PIL)

  • License: HPND License
  • Source: Alex Clark and Contributors
  • Usage: Python image processing
  • Link: python-pillow.org

Content Safety

Zimage.run uses automated content moderation and safety controls to help enforce our platform policies and prevent prohibited content.

Additional Dependencies

Our service also relies on many other open-source libraries and tools. A complete list of dependencies can be found in our package.json and requirements.txt files.

License Compliance

Zimage.run is committed to complying with the terms and conditions of all open-source licenses. We:

  • Preserve all required copyright notices
  • Provide copies of license texts
  • Note modifications to original works
  • Distribute derivative works as required by licenses

No Affiliation or Endorsement

Z-Image is not affiliated with, endorsed by, or sponsored by Tongyi-MAI, Alibaba Group, Black Forest Labs, BRIA AI, or other model providers. Commercial authorization does not imply an endorsement or partnership.

The use of Apache-2.0 licensed components does not imply:

  • Partnership
  • Joint development
  • Certification
  • Approval or sponsorship

All trademarks and product names belong to their respective owners.

Proprietary Enhancements by Z-image.run

While Z-image.run incorporates Apache-2.0 licensed components, the following are exclusive property of Z-image.run:

  • Web interface and UX
  • Inference pipeline and performance optimizations
  • Hosting and runtime infrastructure
  • Safety & moderation systems
  • Prompt filtering logic
  • Account, billing, and credit systems
  • API integrations (if applicable)
  • Documentation, branding, and all visual assets

Users do not acquire rights to these proprietary systems under the Apache-2.0 license.

User Data and Model Training

Z-image.run does not use your prompts, generated images, or uploaded files to retrain, fine-tune, or otherwise modify the underlying open-source model unless you provide explicit consent.

Your content is processed only to deliver the service and enforce platform safety.

Purpose of This Attribution

This page exists to:

  • Satisfy Apache-2.0 open-source attribution requirements
  • Provide transparency for users, partners, and regulators
  • Clarify the relationship between open-source components and our proprietary service
  • Document the models and sources used by Z-Image
  • Avoid any confusion regarding ownership or affiliation
This product includes model components developed by Tongyi-MAI and licensed under the Apache License, Version 2.0.
https://www.apache.org/licenses/LICENSE-2.0

Trademark Notice

All trademarks, product names, and company names mentioned are the property of their respective owners. Use of these names does not imply any affiliation or endorsement.

Last Updated: October 2, 2026

Contact: support@zimage.run.

Thank you to all open-source contributors who make zimage.run possible!