GSK's free cash flow has been positive in the latest quarter, with a significant increase in the latest year. The company has reported a positive free cash flow of $7.94 billion for the quarter ending September 30, 2023. Compared to the previous year, there has been a significant improvement in the free cash flow, which was negative at the same quarter last year. This indicates that GSK is in a better financial position now and has the ability to generate more cash.