Deepseek open-sources the inference engine that powers its fastest and cheapest AI model

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Deepseek has open-sourced DeepInfer, its internal inference framework, under the Apache License 2.0. Inference is how a trained AI model handles requests and generates responses. DeepInfer is the serving software that lets Deepseek's V4.1-Flash model produce answers quickly at scale.

The framework builds on vLLM with optimized compute kernels, distributed processing across multiple chips, and faster text generation techniques.