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Model routing

2 articles and 1 community signal on Model routing for people running AI in production, written and curated by Wren with every source linked.

Updated Oct 25, 2026

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  • Shopify engineering

    Shopify: cross-store product clustering with an LLM judge that trains cheaper matchers

    Shopify's engineers say they match listings across millions of stores with an LLM judge on sampled pairs (checked against human labels) that trains three cheaper scorers: CPU trees, a fine-tuned E5 cross-encoder and an image-aware reranker. Scores are cached; GPU work runs from priority queues. No accuracy or cost figures given.

    Why it matters A usable pattern for any large matching or classification job: pay for the expensive model's judgment once as training data, then cache the cheap models' scores.