The 2-year fix comes with a £1,499 arrangement fee, although Platform also offers fee free, £999 fee and £250 cashback deals.
Platform is the Co-operative Bank’s intermediary lender.
Stuart Beattie, head of mortgages at Platform, said: “Supporting brokers is a priority for platform so we’re pleased to again be in a position to improve our range of fixed rate mainstream mortgages for intermediaries.
“Our rates continue to be amongst the lowest we’ve ever offered. With rates at current levels, it’s understandable that consumers would turn to brokers for help on whether it’s a good time for them to fix.”
Platform’s products come with a free standard valuation for remortgagers and purchasers, plus free legals for remortgagers.