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EngineeringDatabricks Blog·October 14, 2026·Bruce Fontaine

Reducing Qwen training time by 6x on AI Runtime

Summary

Qwen fine-tuning can be accelerated by 6x on AI Runtime by installing the correct kernels and improving the data pipeline, even when baseline GPU utilization already reaches 98%. AI Runtime enables you to diagnose these performance issues using a standard torch trace of an LLM.

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