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ReactiveGWM-Models — Third-Party IP Notice
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This model release is distributed under CC BY-NC 4.0 (see `LICENSE`) for
the original contributions of the model author. Those original
contributions do NOT include the underlying video-game IP that the
training data was derived from, nor any Capcom IP that the models can
reproduce in their generated outputs. This NOTICE file enumerates the
third-party intellectual property implicated by this release and the
conditions under which the weights are made available.


1. Source games (training data origin)
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The weights under `SF2/*.safetensors` were trained on short rollouts of:

    Street Fighter II: Champion Edition
    Platform: Sega Genesis / Mega Drive
    © Capcom Co., Ltd. All rights reserved.

The weights under `SF3/*.safetensors` were trained on short rollouts of:

    Street Fighter III: New Generation / Street Fighter III: 3rd Strike
    Platform: Capcom CPS-3 arcade hardware
    © Capcom Co., Ltd. All rights reserved.

"Street Fighter", the Street Fighter logo, and all character names,
designs, sprites, backgrounds, music, and sound effects that appear in
the training rollouts — and that the models may reproduce in their
generated frames — are trademarks and/or copyrighted works of
Capcom Co., Ltd.


2. No transfer of rights
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Nothing in this model release, in its `LICENSE`, in its `README.md`, or
in any accompanying file, shall be construed as:

  - a transfer of, or a license to, any Capcom intellectual property;
  - an endorsement of these models by Capcom Co., Ltd.;
  - an affiliation between the model author and Capcom Co., Ltd.

The model author is an independent academic researcher with no
relationship to Capcom Co., Ltd.


3. Basis for inclusion
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The weights — and indirectly, the Capcom-derived visual content they
encode — are released solely for the purpose of academic, non-commercial
research into:

  - generative video world models,
  - video-language alignment and action grounding,
  - behaviour cloning and offline reinforcement learning,
  - reactive agent modelling on discrete-action domains.

This use is asserted under applicable fair-use / fair-dealing doctrines
(e.g. 17 U.S.C. § 107 in the United States, and analogous research and
private-study exceptions in other jurisdictions). It is the user's
responsibility to ensure that their downstream use also qualifies under
the law of their jurisdiction.


4. What is NOT included
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This repository does NOT contain, and the model author will NOT provide:

  - Sega Genesis or CPS-3 game ROMs;
  - any BIOS image required to run those ROMs;
  - emulator binaries;
  - reverse-engineered game source code;
  - the raw video frames or audio extracted from the source games (those
    live in the companion `ReactiveGWM-Datasets` release, under the same
    non-commercial constraints).

Anyone wishing to retrain or reproduce these weights using the companion
`SF_ENGINE` code must obtain legal copies of the original games and any
required BIOS from their own legitimate sources.


5. Prohibited uses
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The following uses are explicitly NOT permitted under this NOTICE, the
LICENSE, or any fair-use claim asserted herein:

  - Commercial use of the weights, of generated outputs from the weights,
    or of any model derived from / fine-tuned on these weights.
  - Redistribution of the weights bundled with game ROMs, BIOS files, or
    emulator binaries.
  - Use of the models to reproduce, recreate, clone, or compete with any
    Capcom game, in whole or in part — including using generated frames
    as assets for a derivative game or interactive product.
  - Use in any product, service, or publication that disparages Capcom
    Co., Ltd. or its properties.


6. Takedown / rights-holder contact
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If you are a rights holder — in particular Capcom Co., Ltd. or an
authorised representative — and you believe that any material in this
release, or any content these models reproduce, infringes your rights,
please contact the model maintainer:

    Maintainer : Zeqing Wang
    E-mail     : zeqing.wang@u.nus.edu
    Repository : https://huggingface.co/INV-WZQ/ReactiveGWM-Models

Please include:

  - a description of the copyrighted work or trademark at issue,
  - the specific files in this repository that are alleged to infringe,
  - your contact information,
  - a statement of your authority to act on behalf of the rights holder.

The maintainer commits to responding within a reasonable timeframe and,
where the claim is substantiated, to removing or restricting access to
the contested material promptly.


7. Companion software and dataset
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The training data (`ReactiveGWM-Datasets`) and the data-generation /
training pipeline (`SF_ENGINE`) live in separate repositories and are
licensed independently — the dataset under CC BY-NC 4.0 with the same
third-party IP carve-out as this release, and any patches to third-party
emulators distributed alongside `SF_ENGINE` remain subject to their
original upstream licenses (typically GPL-compatible licenses for
stable-retro / FBNeo). See those repositories for details.


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Last updated: 2026-05-13
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