CodeNavi Model License — Buric-E4B

Version 1.0 · Draft for legal review · 11 June 2026
Copyright © 2026 CodeNavi, Ohio, USA. All rights reserved.

Draft — pending legal review. This document is published for transparency alongside the CodeNavi Evaluation License and is not yet finalized.

This license governs the Buric-E4B model weights (the "Model") distributed with CodeNavi — including the files under /models/Buric-E4B in CodeNavi images and packages. It does not govern the CodeNavi server software (see the CodeNavi Evaluation License) or third-party models (see the third-party notices bundled with the package, docs/THIRD-PARTY-NOTICES.md).

Grant

Subject to a valid CodeNavi license (evaluation or commercial), you may run and use the Model — including for commercial purposes — as part of, and in conjunction with, a licensed CodeNavi deployment.

No restriction on outputs: embeddings produced by the Model, search results derived from them, and any index built with them are yours to use without restriction. There is no non-commercial limitation of any kind on your use of CodeNavi or the Model's outputs.

Restrictions

Except where applicable law gives you a non-waivable right, you may not:

  1. redistribute, publish, sell, or otherwise make the Model weights (in whole, in part, or in converted/quantized form) available to any third party;
  2. use the Model standalone, or in any product, service, or system other than a licensed CodeNavi deployment;
  3. use the Model or its internal representations to train, fine-tune, or distill another model.

Base model attribution

The Model is a fine-tune of Qwen/Qwen3-Embedding-4B (which derives from Qwen/Qwen3-4B-Base), licensed under the Apache License 2.0. The Apache 2.0 license text and the attribution it requires are preserved alongside the Model (APACHE-2.0-BASE.txt in the model directory). This CodeNavi Model License applies to the fine-tuned weights as a derivative work, as permitted by Apache 2.0; it grants no rights to the unmodified base model, which remains available from its upstream source under Apache 2.0.

Term

This license terminates automatically when your CodeNavi license terminates or expires past any applicable grace period, or upon breach of the Restrictions. Upon termination you must stop using the Model and delete all copies in your possession; indexes and outputs already produced remain yours.

Disclaimer

THE MODEL IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. IN NO EVENT SHALL CELLPEX LLC (D/B/A CODENAVI) BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY ARISING FROM THE USE OF THE MODEL, TO THE MAXIMUM EXTENT PERMITTED BY LAW.

Questions about model licensing? [email protected].

CodeNavi is a trade name of Cellpex LLC, an Ohio limited liability company (Ohio trade name registration no. 202620900138).