OpenAI Provides UK Banks with Cybersecurity Tool Amid Anthropic's Restrictions on Mythos
anthropic claude gpt-5 openai
| Source: Retail Banker International on MSN | Original article
OpenAI grants UK banks access to its GPT-5.5 cyber tool.
OpenAI has granted nine major UK banks access to its GPT-5.5 Cyber model, a powerful cybersecurity tool, following the company's earlier move to provide similar access to several Japanese financial institutions. This development comes as Anthropic, OpenAI's rival, has restricted UK banks from participating in previews of its Claude Mythos system, despite promises made in April.
As we reported on June 3, Anthropic has been rapidly expanding its influence, surpassing OpenAI as Silicon Valley's most valuable artificial intelligence company and scaling Claude Mythos to critical infrastructure in 15 countries. However, the decision to limit access to UK banks has created an opportunity for OpenAI to fill the gap. The move highlights the banking sector's growing focus on strengthening cybersecurity and the intense competition between AI companies to provide these services.
The UK banks' inability to access Anthropic's Mythos system has been a point of contention since April, when the Bank of England and other regulatory bodies convened to assess the risks it posed to British financial institutions. With OpenAI's GPT-5.5 Cyber now available, these banks can leverage advanced AI-powered cybersecurity tools to protect themselves against evolving threats. It remains to be seen how Anthropic will respond to OpenAI's move and whether it will reconsider its decision to restrict access to Mythos for UK banks.
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