DeepSeek V4.1 Flash nearly saturates web-vuln benchmarks, narrowing open-frontier cyber gap
AlexBarry4 · x · 2026-10-22
- A widely shared thread argues DeepSeek V4.1 Flash is the first open model that dramatically shrinks the gap between open-weight and frontier models: a 500B flash variant that is small, fast, and reasons about code exceptionally well.
- Benchmarking reportedly shows it nearly saturating most web vulnerability tasks, though it still can't write complex exploits (e.g. KVM escapes) at the level of GPT-5.6 "sol".
- AlexBarry4 counters that V4.1 Flash remains clearly behind 5.6 sol, citing unsaturated benchmarks and cybersec practitioners; others note php2shell-style chains may not need top-tier capability.
- xeophon adds the key difference: closed labs can (and did) update guardrails to block exploit generation for the public, while open weights cannot.
(注：文中 GPT-5.5/5.6 等命名未经验证)