How do you find what caused a production regression when the model version didn't change?
A new model version is the easy case, because the registry tells you right away. The harder cases come from a serving flag like vLLM's `max_model_len`, a Helm value or env var in a deploy, an update to the data pipeline, or a new GPU driver on the nodes. The evidence ends up in different tools. Gra…
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- 2026-10-07 19:47 · r/learnmachinelearning
How do you find what caused a production regression when the model version didn't change?