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Cost-effective AI image generation with PixArt-Σ inference on AWS Trainium and AWS Inferentia

Machine Learning Blog



This article discusses deploying PixArt-Sigma, a high-resolution AI image generation model, on AWS Trainium and Inferentia hardware for cost-effective inference.

  • PixArt-Sigma is a diffusion transformer capable of generating 4K resolution images
  • The deployment process involves compiling three key model components:
    • Text encoder (4B parameters)
    • Denoising transformer (700M parameters)
    • VAE decoder
  • Uses advanced techniques like tensor parallelism and sharded attention layers
  • Demonstrates how to compile and run the model on AWS Neuron-powered instances
  • Provides a step-by-step guide for model setup, compilation, and image generation

The solution aims to enable cost-effective, high-quality AI image generation using AWS's purpose-built AI acceleration hardware.



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