A source close to the pair had claimed that they have separated after a relationship of two years, People magazine has reported.
But Nanci Ryder and Carrie Byalick, who represent Witherspoon and Gyllenhaal respectively, said, "It is not true. They are still together."
The actors co-starred in the 2007 movie 'Rendition', and soon after started dating in real life.
The Oscar-winning actress has been with the 28-year-old actor ever since, without any ups and downs in their relationship. Indian Express