OpenAI offers UK banks access to cybersecurity AI after rival Anthropic blocks previews
By
Zoe Kleinman
Master baker tier. Every paragraph earns its place on the tray.
Summary
OpenAI has offered nine major UK banks access to its cyber security AI tool GPT-5.5 Cyber, following rival Anthropic blocking these banks from previews of its similar tool, Claude Mythos. Both AI tools are designed to identify hidden security weaknesses in digital systems and can outperform humans at certain hacking and cybersecurity tasks. The development highlights the growing competition between AI companies in the cybersecurity sector, particularly for sensitive financial industry clients.
Key quotes
· 2 pulledOpenAI has offered nine major UK banks access to its cyber security AI tool GPT-5.5 Cyber, as its fierce rival Anthropic has blocked them in previews of its version, Claude Mythos.
Both tools are designed to find hidden security weaknesses in digital systems and can outperform humans at some hacking and cyber-security tasks.
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