Shopify's 'Flywheel': a continual learning loop on PyTorch + vLLM that beats frontier models at a fraction of the cost

PyTorch · x · 2026-11-10

At PyTorch Conference North America, Shopify's Anthony Mazza presented "Flywheel," a state-of-the-art continual learning loop built on PyTorch and vLLM that Shopify says outperforms frontier models at a fraction of the cost.

The core insight: as enterprises scale generative AI, the bottleneck shifts from building an initial model to maintaining and improving performance in production. Shopify turns real-world failures into a self-improving engine rather than letting a static model degrade after launch. Full keynote video is on YouTube.

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