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On September 29, 2026, OpenAI will preview GPT-6 Cyber at its annual DevDay conference in San Francisco. It will be the company’s fourth cybersecurity-focused model released in twelve months. The cadence alone is the story: GPT-5.4 Cyber arrived in April, GPT-5.5 Cyber in June, GPT-5.6 Cyber in August, and now GPT-6 Cyber in September. No…