OpenAI has launched the GPT-5.4-Cyber model, which is open to security personnel with low refusal capability

By: rootdata|2026/04/15 00:46:35

OpenAI announced the launch of the GPT-5.4-Cyber model, which is fine-tuned from GPT-5.4 for cybersecurity scenarios, reducing the refusal limits on security-related requests under specific conditions to support specialized operations such as binary reverse engineering.

According to the introduction, the model is only available to vetted security vendors, corporate security teams, and researchers through the "Trusted Access for Cybersecurity" (TAC) program. OpenAI stated that the relevant layered mechanism will limit the scope of model usage and impose additional constraints on access in low visibility scenarios.

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