# Sipsa Labs Research and Evaluation License

**Version 1.0** — effective 2026-04-25

This License (the "**License**") is a legal agreement between **Sipsa Labs, Inc.**, a Delaware corporation ("**Licensor**"), and **you** (an individual person or a single legal entity exercising rights under this License) ("**Licensee**"). It governs your use of any **pre-compressed reference model** that incorporates the patent-pending compression methods of Sipsa Labs (the "**Licensed Material**"), including but not limited to model weights, configuration files, tokenizer files, and the `ultracompress.json` provenance manifest contained in any Hugging Face Hub repository under the `sipsalabs` organization.

By downloading, using, or distributing the Licensed Material, you agree to the terms of this License.

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## 1. Grant of license

Subject to the terms and conditions of this License, Licensor grants you a non-exclusive, worldwide, non-transferable, royalty-free license to:

(a) Use the Licensed Material for **non-commercial research** at a non-profit research institution, including academic research, dissertation work, and unfunded individual research;

(b) Use the Licensed Material for **personal experimentation, learning, and educational purposes**;

(c) Use the Licensed Material for **pre-purchase evaluation** by an enterprise that is actively considering negotiating a commercial license with Licensor — for a period not to exceed **ninety (90) days** from first download.

For clarity, the rights granted under this License are limited to the use of the Licensed Material as published. They do **not** include any rights to the underlying patent-pending compression methods, which are the subject of pending U.S. patent applications USPTO 64/049,511 and 64/049,517.

## 2. Conditions

You agree:

(a) **Attribution**: any publication, technical report, blog post, or public demonstration that uses or describes the Licensed Material must attribute Sipsa Labs and cite USPTO 64/049,511 and 64/049,517 as the source of the underlying methods.

(b) **No commercial use**: you will not use the Licensed Material in any product, service, or activity that generates revenue or that is intended to generate revenue. The non-exhaustive list of prohibited commercial uses includes:
   - Deploying the Licensed Material in a production service that serves paying users
   - Including the Licensed Material in a product offered for sale
   - Using the Licensed Material to provide consulting services to a third party
   - Using the Licensed Material in any context where the user pays for inference, output, or access

(c) **No redistribution**: you will not redistribute the Licensed Material or any derivative work that contains the Licensed Material in whole or in part, except as expressly permitted by Section 4.

(d) **No reverse engineering of the methods**: you will not attempt to reverse engineer the compression methods underlying the Licensed Material. Loading the model into a runtime, performing inference, fine-tuning at the loaded model's surface, and benchmarking the model are not "reverse engineering" for purposes of this Section.

(e) **No use to circumvent**: you will not use the Licensed Material as part of a project whose purpose is to develop or deploy a method that infringes Licensor's patent rights, whether the infringing method is created by you, by your collaborators, or by an automated system trained on the Licensed Material.

(f) **License preservation**: you will preserve all copyright, license, and patent notices contained in the Licensed Material in any copy you make.

(g) **Term**: this License is effective for as long as you are in compliance with these conditions. Termination is automatic upon any material breach.

## 3. Commercial license required

If you want to use the Licensed Material in a context that exceeds the rights granted in Section 1, you must obtain a separate written commercial license from Licensor. Email **legal@sipsalabs.com** to begin that conversation.

A commercial license will typically include:
- A patent license to the underlying compression methods
- A license to use the Licensed Material in production
- Service-level commitments and support terms
- A pricing structure appropriate to your use case (per-deployment, per-token, per-device, or site)

## 4. Sharing for collaborative research

Notwithstanding Section 2(c), Licensee may share the Licensed Material with named collaborators on a single research project, provided that:

(a) Each collaborator separately accepts the terms of this License before receiving the Licensed Material;

(b) The sharing is internal to the research project and is not a public redistribution; and

(c) The combined activities of all collaborators on the project remain non-commercial.

## 5. No warranty

THE LICENSED MATERIAL IS PROVIDED **"AS IS"** WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.

LICENSOR DOES NOT WARRANT THAT THE LICENSED MATERIAL WILL BE ERROR-FREE, THAT IT WILL MEET YOUR REQUIREMENTS, OR THAT IT IS SUITABLE FOR ANY SAFETY-CRITICAL OR LIFE-CRITICAL APPLICATION.

## 6. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, LICENSOR'S TOTAL CUMULATIVE LIABILITY UNDER OR IN CONNECTION WITH THIS LICENSE WILL NOT EXCEED ONE HUNDRED U.S. DOLLARS ($100). IN NO EVENT WILL LICENSOR BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, REVENUE, DATA, OR USE, EVEN IF LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

## 7. Termination

Without prejudice to any other rights, Licensor may terminate this License if you fail to comply with the terms and conditions of this License. In such event, you must destroy all copies of the Licensed Material in your possession.

## 8. Governing law

This License is governed by the laws of the State of Delaware, without regard to conflict-of-laws principles. The exclusive jurisdiction and venue for disputes arising out of or relating to this License is the state or federal courts located in San Francisco, California.

## 9. Entire agreement

This License constitutes the entire agreement between you and Licensor concerning the Licensed Material. It supersedes all prior or contemporaneous communications and proposals (whether oral, written, or electronic) between you and Licensor.

## 10. Contact

For commercial licensing or questions about this License:
**Sipsa Labs, Inc.**
Email: legal@sipsalabs.com
Web: https://sipsalabs.com

For technical support or model issues: file an issue at [github.com/sipsalabs/ultracompress](https://github.com/sipsalabs/ultracompress) or email founder@sipsalabs.com.

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*The version on sipsalabs.com is the controlling version. Each model's Hugging Face Hub repository contains a copy of this License with a per-model reference number; that copy is the operative version for that specific download.*
