DeepSeek opened the source code of DeepInfer — the inference framework for models, which, according to The Decoder's metadata, underpins the V4.1-Flash model. The system is said to be built on vLLM.

According to The Decoder, DeepInfer reduces computing costs and energy consumption when running AI models. The publication also links this release to increased price pressure on Western providers, including OpenAI and Anthropic.

The practical significance of the release is still hard to assess: the available material does not include details about licensing, test results, the scale of savings, or the number of users. Therefore, the impact of DeepInfer on the market remains a question for further verification.