OpenAI just announced its Claude Mythos challenger, it is called GPT 5.4 Cyber
Published on: April 15, 2026, 8:21 a.m. | Source: India Today
OpenAI has announced that it will give access to its latest AI model to a select group of companies and users, days after Anthropic released Claude Mythos in a similar manner. According to the AI startup, the new model, GPT-5.4-Cyber is tailored for cybersecurity.
