Open models may beat closed ones for cyber defense, researchers argue as Kimi K3 impresses
eliebakouch · x · 2026-07-27
A quoted discussion argues that the “model access for defenders” problem is not likely to be solved by closed models, so open models may be preferable if the capabilities exist. The post also notes that Kimi K3 already looks quite capable for cybersecurity work, and could potentially surpass Mythos as a specialized fine-tune if it responds to RL in pentesting environments like prior generations did.
Related event: Kimi K3 Security Eval: High Exploit, Low Guardrails(4 posts)→
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