Norbert Gehrke

Japan FinTech Observer | Tontines | ex-Goldman & Barclays Tech MD

Musashino, Tokyo, Japan
Norbert Gehrke
Mizuho’s Custom AI Matches GPT-5.2 Accuracy on Wall Street Speed, Keeps Bank Data Strictly On-Premise

artificial intelligence

Mizuho’s Custom AI Matches GPT-5.2 Accuracy on Wall Street Speed, Keeps Bank Data Strictly On-Premise

Mizuho Financial Group has successfully developed a proprietary, finance-specific Large Language Model (LLM) capable of delivering highly accurate, sub-second responses without relying on prolonged AI reasoning processes. Crucially, the new model operates entirely within Mizuho’s secure, on-premise network, allowing the bank to process highly confidential data