OpenAI has released an improved GPT‑5.5‑Cyber model and updated Codex Security plugin to help trusted defenders find, validate, and patch vulnerabilities faster across large codebases. The company also launched the Patch the Planet initiative with Trail of Bits to support open-source projects and address the growing security burden created by AI-driven vulnerability discovery and exploitation. #OpenAI #GPT55Cyber #CodexSecurity #PatchThePlanet #TrailofBits #Squidbleed
Keypoints
- OpenAI released an improved GPT‑5.5‑Cyber model for trusted defenders.
- The model is designed to find, validate, and help patch software vulnerabilities.
- Codex Security plugin updates speed up scanning, reporting, and patch generation.
- Patch the Planet will help secure open-source projects with Trail of Bits.
- AI models are also accelerating exploitation, shrinking defenders’ response time.
Read More: https://thehackernews.com/2026/06/openai-expands-daybreak-with-gpt-55.html