DeepSeek-V4-Flash enables LLM steering for engineers; technique manipulates model activations mid-inference to control outputs like verbosity, previously impractical without local frontier-quality models.

DeepSeek-V4-Flash means LLM steering is interesting again

Ever since Golden Gate Claude I’ve been fascinated with “steering”: the idea that you can guide LLM outputs by directly manipulating the activations of the model mid-flight. DeepSeek V4 Flash I was inspired to write this post by antirez’s recent project DwarfStar 4, which is a version of llama.cpp that’s been stripped down to run only DeepSeek-V4-Flash. What’s so special about this model? It might be what many engineers have been waiting for: a local model good enough to compete with at least th...