JPMorgan will limit junior banker hours to 80 per week in most cases.
The firm describes the AI assistant as a productivity tool.
The bank said about a fifth of the world's assets are held by people over 75.
New York is the most expensive of U.S. cities.
The bank warned employees that trips to this year's Olympic city will be closely monitored.
Traders are currently pricing in about 140 basis points of easing this year.
The bonuses raise questions about top executives' level of commitment, the analyst said.
Citigroup is jostling with its big rivals for a larger slice of wealth revenues in Asia Pacific.
The U.S. bank has a lot of revenue riding on maintaining cordial relations with China.
An eventual rise in interest rates could "take some of the exuberance out of certain markets,” he said.