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OpenAI Unveils GPT-5.6 Sol as Its Most Advanced Cybersecurity AI

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Source: SecurityWeekJune 29, 2026

Summary

OpenAI announced GPT-5.6 Sol, a new AI model designed specifically for cybersecurity tasks, which is being released in limited preview to trusted partners while the government evaluates national security risks from advanced AI systems. Sol is built to excel at defensive security work like finding vulnerabilities and creating patches, rather than launching full cyberattacks, and uses multiple safety layers including real-time classifiers (automated systems that flag suspicious inputs) and secondary review processes to prevent misuse.

Solution / Mitigation

OpenAI deployed a multi-layered security architecture for GPT-5.6 that includes: standard training-level refusals, automated real-time classifiers for biology and cybersecurity inputs that pause output generation when anomalies are flagged for secondary review by a reasoning model, account-level evaluations to distinguish legitimate security research from malicious behavior, and over 700,000 A100-equivalent GPU hours of automated red-teaming (adversarial testing to find weaknesses) focused on discovering universal jailbreaks (broad attack methods) rather than single-prompt failures.