# Last month, Anthropic released Mythos, the newest and most powerful model in its Claude family of AI systems.

*genai · news · 2026-05-09 · India Today*

## Key points

- Anthropic's Mythos AI found a software flaw that had remained undetected for 27 years.
- Access to Mythos is limited to about 40 organizations via Anthropic's Project Glasswing initiative.
- OpenAI's GPT-5.5 Cyber is less advanced but more widely accessible through a KYC-verified application process.
- Mythos can process and analyze much more data simultaneously than GPT-5.5 Cyber.
- Mythos is reportedly 10 to 12 times more expensive than GPT-5.5 Cyber.

**Companies:** OpenAI, Anthropic

[Read the full story on India Today](https://www.indiatoday.in/technology/features/story/claude-mythos-vs-gpt-55-cyber-explained-how-anthropic-and-openai-differ-on-ai-cybersecurity-2909204-2026-05-09)

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