Learn ONNX with Real Code Examples
Updated Nov 24, 2025
Learning Path
Understand ML model training in PyTorch or TensorFlow
Learn ONNX model export and import
Practice inference using ONNX Runtime
Experiment with model optimization and quantization
Deploy ONNX models on edge and cloud platforms
Skill Improvement Plan
Week 1: Export simple models to ONNX
Week 2: Validate ONNX model inference matches original framework
Week 3: Apply optimizations and quantization
Week 4: Deploy models on GPU/CPU backends
Week 5: Integrate ONNX models into production pipelines
Interview Questions
What is ONNX and why is it used?
How do you export a PyTorch model to ONNX?
Explain ONNX Runtime and its advantages
How do you optimize an ONNX model for inference?
What are limitations of ONNX for deployment?
Cheat Sheet
ModelProto = serialized ONNX model
Graph = computation graph of nodes
Node = operator in the graph
Tensor = multi-dimensional data array
ONNX Runtime = inference engine
Books
Practical ONNX
Deploying AI Models with ONNX Runtime
Cross-Framework Machine Learning with ONNX
ONNX for Edge and Cloud AI
Optimizing Inference with ONNX
Tutorials
ONNX official tutorials
ONNX Runtime performance examples
PyTorch to ONNX export notebooks
TensorFlow to ONNX conversion guides
Hands-on optimization and quantization exercises
Official Docs
https://onnx.ai/
https://github.com/onnx/onnx
https://onnxruntime.ai/
Community Links
ONNX GitHub repository
ONNX Runtime GitHub
StackOverflow ONNX tag
ONNX Slack/Discord
Microsoft AI developer forums
Community Support
ONNX GitHub repository
ONNX Runtime GitHub repository
StackOverflow ONNX tag
ONNX Slack and forums
Microsoft and Facebook ML developer communities