DeepSeek-V4-Flash Makes LLM Steering Viable Again

Added: 2026-05-18

[00:00:00]Deep Seek V4 Flash is fast and cheap enough to make steering vectors practical. Steering vectors let you modify model outputs by injecting activation patterns, no fine-tuning needed. This matters because you can now control LLM behavior at inference time in production. The caveat, steering vectors are still experimental. Results vary by model and use case. Start experimenting with steering on smaller models.

[00:00:22]Test whether it actually solves your control problem before betting on it.