Jake Gyllenhaal is back on the market.

The “Prisoners” star, 33, has called it quits with Sports Illustrated model Alyssa Miller, 24, after nearly six months of dating, according to Us Weekly.

"Things were really good between Jake and Alyssa right up until he had to leave for L.A. to go shoot a movie [‘Nightcrawler’] in the fall," a source told the magazine. "Then the distance just really got to them."

The actor has been hard at work filming the upcoming thriller “Nightcrawler,” in which he plays a young man who stumbles upon the underground world of L.A. freelance crime journalism.

In addition to their busy work schedules, commitment issues were reportedly to blame for the couple’s failed romance, which is said to have “fizzled out” just before the holidays.

"They were apart for the holidays, and things weren't good with them even before that," another insider told the mag. "She's very much a long-term relationship girl. He's not as much of that mindset."

Gyllenhaal, whose growing list of exes includes Kirsten Dunst, Reese Witherspoon and Taylor Swift, began dating Miller last June after the two reportedly met at the gym.