Back to Blog
AI

Practical Guide to AI Model Compression: Pruning, Quantization, and Knowledge Distillation

A hands-on guide to compression techniques for running large AI models on edge devices and mobile, covering pruning, quantization, and knowledge distillation.

POLYGLOTSOFT Tech Team2025-07-227 min read0
Model CompressionQuantizationPruningKnowledge Distillation

Why Model Compression is Necessary

Large AI models provide high accuracy but require substantial computational resources for inference. Compression is essential for running them on edge devices, mobile, and IoT devices.

Three Major Compression Techniques

1. Pruning

Reduces model size by removing neurons or connections with low importance.

  • Unstructured Pruning: Removes individual weights
  • Structured Pruning: Removes entire channels or layers
  • Can reduce model size by 50-80%
  • 2. Quantization

    Converts FP32 (32-bit floating point) to INT8 (8-bit integer) to improve model size and inference speed.

  • Model size reduced by 4x
  • Inference speed improved by 2-3x
  • Accuracy loss of less than 1%
  • 3. Knowledge Distillation

    Transfers knowledge from a large model (Teacher) to a smaller model (Student). The Student model retains over 90% of the Teacher's performance.

    TensorRT Optimization

    NVIDIA TensorRT optimizes models for GPU to maximize inference speed. It automatically applies quantization and layer fusion.

    Conclusion

    Model compression is an essential step for deploying AI in the field. POLYGLOTSOFT's AI platform provides automated compression pipelines.

    Need Technical Consultation?

    Our expert consultants in smart factory, AI, and logistics automation will analyze your requirements.

    Request Free Consultation