DeepSeek v4.1 Flash Is Now Our Best Hacking Model

DeepSeek V4.1 Flash achieved an extraordinary result in an AI hacking benchmark, successfully gaining code execution on all 11 vulnerable targets while all four fixed targets remained secure. The accepted runs cost only $4.65, making it a highly efficient and effective model. Across the full benchmark, the model utilized 2,349 Bash commands and nearly two hours and 38 minutes of active model time, with a median successful run taking four minutes and 38 seconds. This performance makes DeepSeek v4.1 Flash one of the most useful results collected so far.