offensive-security
1 article tagged with offensive-security
June 25, 2026
model releaseDeepSeek
DeepSeek-V4-Fable: Offensive Security Model Trained on 80,000 CTF Trajectories Achieves 58.7% Solve Rate
Chunjiang Intelligence has released DeepSeek-V4-Fable, an autonomous agent model designed for offensive security research and CTF challenges. The model, distilled from Claude-5-Fable and built on DeepSeek-V4-Flash, was trained on 80,000 verified CTF trajectories and achieves a 58.7% solve rate across held-out security challenges.