Testing mode.
Abstract network background

ONNX Guide

Open Neural Network Exchange - the universal format for AI models.

Back to AI Tools

Like a Universal Power Adapter for AI

ONNX (Open Neural Network Exchange) is like a universal power adapter for AI models. Just as you can use one adapter to power devices from different manufacturers, ONNX lets you run AI models created with different tools on different hardware platforms.

Why This Matters

Different AI tools create models in different formats. PyTorch uses one format, TensorFlow uses another, and each hardware manufacturer has their own optimized formats.

ONNX acts as a translator, converting models from one format to another so they can run anywhere - on your phone, your computer, or specialized AI chips.

Why ONNX Is Perfect for You

Universal Format

ONNX works with all major AI frameworks - no vendor lock-in

Hardware Agnostic

Run on CPUs, GPUs, or specialized chips from any manufacturer

Performance Optimized

Models optimized for speed and efficiency on your hardware

Completely Free

Open standard with no licensing fees or restrictions

How Different AI Frameworks Work Together

Each framework has its strengths, and ONNX connects them all.

TensorFlow

Google's machine learning framework

Strengths:

  • Strong ecosystem
  • Great for research
  • Flexible

ONNX Support:

Full import/export support

PyTorch

Facebook's deep learning framework

Strengths:

  • Dynamic graphs
  • Research friendly
  • Strong community

ONNX Support:

Full export support, good import support

ONNX Runtime

Microsoft's high-performance inference engine

Strengths:

  • Cross-platform
  • Hardware acceleration
  • Optimizations

ONNX Support:

Native ONNX format

How Hardware Acceleration Works

Different chips speed up AI in different ways.

CUDA (NVIDIA)

NVIDIA's parallel computing platform

High-performance AI acceleration for NVIDIA GPUs

ROCm (AMD)

AMD's open-source GPU computing platform

AI acceleration for AMD GPUs

DirectML

Microsoft's Direct Machine Learning API

AI acceleration for Windows devices with any GPU

Core ML

Apple's machine learning framework

AI on iPhones, iPads, and Macs

How ONNX Connects Everything

ONNX works as the middle layer between AI frameworks and hardware:

Step 1: Training

Researchers create models using PyTorch or TensorFlow

Step 2: Conversion

Models are converted to ONNX format

Step 3: Deployment

ONNX Runtime optimizes for specific hardware

This means you can run the same AI model on your iPhone, your gaming PC with an NVIDIA GPU, or a server with AMD processors - all using the same ONNX file.

Types of ONNX Models We Use

Different models solve different problems, all in the universal ONNX format.

Image Segmentation (U²-Net)

Remove backgrounds and isolate objects in images

Popular Models:

rembgBiRefNetBRIA-RMBGISNet

Use Case:

Product photos, profile pictures, creative composites

Image Upscaling (ESRGAN)

Increase image resolution and enhance details

Popular Models:

RealESRGANBSRGANRealSR

Use Case:

Photo restoration, enlarging low-resolution images

Image Denoising

Remove noise and grain from photos

Popular Models:

IRCNNDnCNN

Use Case:

Improving low-light photos, restoring old images

Object Detection

Identify and locate objects in images

Popular Models:

YOLOSSDFaster R-CNN

Use Case:

Security cameras, autonomous vehicles, inventory management

ESRGAN Models - Image Upscaling Experts

ESRGAN (Enhanced Super-Resolution Generative Adversarial Networks) are like digital magnifying glasses that don't just make images bigger - they actually add realistic details.

  • Turn blurry, low-resolution photos into sharp, high-quality images
  • Restore old family photos damaged by time
  • Enhance screenshots and compressed images

ONNX Models Available for Download

Pre-trained models ready to use on your projects.

Image Segmentation

Background removal and object isolation

  • u2net.onnx - General purpose
  • silueta.onnx - Lightweight
  • bria-rmbg.onnx - Portrait focus
  • isnet-anime.onnx - Anime style

Image Upscaling

Increase resolution and enhance details

  • RealESRGANx4_fp16.onnx - General upscaling
  • BSRGANx4_fp16.onnx - Artifact reduction
  • RealSRx4_Anime_fp16.onnx - Anime style

Image Denoising

Remove noise and grain from photos

  • IRCNN_Lx1_fp16.onnx - Light denoising
  • IRCNN_Mx1_fp16.onnx - Medium denoising

Using ONNX Models

Simple steps to start using these models

1

Download Models

Get the ONNX files from our repository or convert your own models.

2

Install ONNX Runtime

pip install onnxruntime

3

Run Inference

Load the model and process your images with just a few lines of code.

Ready to Use Universal AI Models?

Access powerful ONNX models that run anywhere, on any hardware.