UK banks offered access to OpenAI’s GPT-5.5 amid exclusion from Anthropic’s Glasswing expansion

UK banks, excluded from Anthropic’s Project Glasswing expansion, are receiving access to OpenAI’s GPT-5.5 Cyber model. While JPMorganChase was the only financial institution granted access to Anthropic’s Mythos Preview, UK banks like HSBC, Lloyds, and Nationwide will use GPT-5.5 instead. The Bank of England’s governor, Andrew Bailey, criticized Anthropic’s exclusion of UK institutions, with some suspecting political motives behind access decisions.