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

> Source: <https://the-decoder.com/deepseek-open-sources-the-inference-engine-that-powers-its-fastest-and-cheapest-ai-model/>
> Published: 2026-10-20 18:56:15+00:00

Deepseek is open-sourcing DeepInfer, the inference framework behind its fast V4.1-Flash model. The vLLM-based system cuts compute costs and energy use when running AI models. The release adds more pricing pressure on Western providers like OpenAI and Anthropic.

The article [Deepseek open-sources the inference engine that powers its fastest and cheapest AI model](https://the-decoder.com/deepseek-open-sources-the-inference-engine-that-powers-its-fastest-and-cheapest-ai-model/) appeared first on [The Decoder](https://the-decoder.com).