Goldman Sachs Group Inc is launching a digital wealth-management platform that allocates and rebalances customers' wealth across portfolios of stocks and bonds.

The low-cost platform, Marcus Invest, will allocate wealth based on models developed by the bank's investment-strategy group.

The latest digital banking push is in line with Chief Executive David Solomon's plan to reduce Goldman's reliance on volatile trading and investment banking revenue, while shifting focus towards Marcus, its consumer banking unit.

The bank launched Marcus in 2016 to diversify its revenue and funding sources by offering savings accounts and personal loans to retail customers. Goldman also has an existing Marcus consumer-banking app.

Solomon was one of the people who beta-tested the new investment app, according to a Wall Street Journal report on Tuesday.

Marcus Invest offers both individual and joint investment accounts, as well as three types of individual retirement accounts, the bank said.

Customers can open an account with a minimum of $1,000 and Marcus Invest charges an annual advisory fees of 0.35%.