“Mythos-like hacking, open to all”: Industry reacts to OpenAI’s GPT 5.5

OpenAI has released GPT 5.5, drawing significant attention from the AI industry. Developers are comparing it to Anthropic’s Claude models, especially for coding agents like Claude Code. The release raises concerns about security vulnerabilities and potential misuse.

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PublishedFriday, April 24, 2026 at 2:49 PMApr 24, 02:49 PM

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Community reaction to OpenAI’s latest frontier model, as developers weigh real-world performance, cost, access and security

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Opening the briefing

“Mythos-like hacking, open to all”: Industry reacts to OpenAI’s GPT 5.5

Original article excerpt

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Opening the briefing

“Mythos-like hacking, open to all”: Industry reacts to OpenAI’s GPT 5.5

Original article excerpt

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