Research · 9 November 2026
ResearchOpen‑weight DeepSeek V4.1 Flash achieves 72.8% cyber‑attack success at one‑tenth cost
In the Vals AI benchmark, OpenAI's GPT‑6 Sol Daybreak hit 80.8% of attack objectives, while open‑weight DeepSeek V4.1 Flash reached 72.8% at roughly one‑tenth the cost. Longer runtimes were critical for open models to demonstrate capability.
Why it matters
DeepSeek V4.1 Flash achieves 72.8% attack success at roughly one‑tenth cost; evaluate cost‑effective red‑team options versus GPT‑6.
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