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✦ Free & open sourceGraphic Design

traiNNer-redux

Deep learning framework to train PyTorch models for image and video upscaling.

Train custom AI upscaling and restoration models

Deep learning training framework for image and video super resolution in PyTorch.

Free forever · open source · Apache-2.0
✓ Needs IT✓ Browser-based✓ Real-time collaboration
6.6
ZEKAI
Essential for custom AI upscaling
Free & open source · Graphic Design
Ease of setup4
Usefulness8
Maintenance9.5
Community5
★ 139
GITHUB
Oct 2026
UPDATED
Apache-2.0
LICENSE
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⚡ Quick answer

traiNNer-redux is a specialized deep learning training framework designed for creating custom PyTorch models focused on image super resolution and restoration. It is built for graphic designers, digital artists, and technical creators who want to go beyond pre-trained AI models and train their own networks.

Runs on
Cross-platform
Hosting
Desktop
Languages
Python
License
Apache-2.0

What it is

The framework allows you to train PyTorch models for upscaling and restoring images and videos using various architectures imported from Spandrel and developed by contributors like umzi2 and Kim2091. It integrates with tools like OpenModelDB for pretrain models and chaiNNer for dataset preparation and running trained models.

Who it's for

It suits digital artists and technical creators who need custom upscaling models and have the hardware to handle deep learning training. It does not suit casual users looking for a one-click desktop app without technical overhead.

Key features

PyTorch Training Framework

Train custom models for image and video super resolution and restoration.

Spandrel Architectures

Supports a wide variety of advanced network architectures imported via Spandrel.

OpenModelDB Integration

Use existing AI models as pretrain models and submit your own finished models.

Dataset Preparation Tools

Leverage companion utilities like WTP Dataset Destroyer and Video Destroyer to degrade high-quality sources.

How to start

Up and running in 3 steps

1
Check the getting started page in the official documentation for installation prerequisites.
2
Prepare your high-resolution and low-resolution datasets using companion tools if needed.
3
Configure your PyTorch training parameters and begin training your custom model.
Real talk

Our honest verdict

What's great

  • Supports custom neural network architectures like ArtCNN, FlexNet, and TSPANv2
  • Compatible with chaiNNer for pipeline integration and dataset prep
  • Works with pre-trained models from OpenModelDB to jumpstart training
  • Includes support for video-focused architectures with temporal consistency

Where it falls short

  • Requires a capable NVIDIA graphics card, or an AMD card running Linux with ROCm
  • Involves deep learning training workflows rather than simple point-and-click upscaling
  • Setup requires following documentation and managing Python environments
Cost

Pricing & license

Free under its open source license. The only cost is running it yourself, which includes the electricity and hardware required to train deep learning models.

Paid work

Open remote AI-training roles

767 open remote AI-training roles, updated November 14, 2026; most pay $20–$175 an hour. Zekai lists them free; the application goes to the employer’s platform.

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📄 Free PDF: traiNNer-redux for Graphic Design
A plain-language guide to getting your first result. Sent to your inbox.
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Questions

FAQ

What hardware do I need to run traiNNer-redux?

An NVIDIA graphics card is strongly recommended, though AMD graphics cards are supported on Linux machines using ROCm.

Can I use models trained here in other software?

Yes, models trained with this repository can be run in chaiNNer and submitted to OpenModelDB.

Where do I get pretrain models?

You can source pretrain models from OpenModelDB to help train your new models.

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