Misanthropic. Don't build your finance function on one AI model

Microsoft just blocked its own staff from using Claude's newest model. The reason is a data rule every CFO is about to inherit, and it lands right when the board is asking you to move faster on AI.

Three days after Anthropic released the most powerful AI model on the market, the US government ordered it switched off.

Claude Fable 5 launched on June 9. It topped nearly every benchmark, the public version of the Mythos-class model the whole industry spent a week calling a leap, handed to millions of paying customers for free.

But Anthropic switched t…