There are currently 5 seasons of Slow Horses released, with a 6th season confirmed and on the way.

Season 1 came out in April 2022, followed by seasons 2–4 through late 2024, and season 5 in late 2025. Apple TV+ has officially renewed the show for season 6 (already filmed) and even season 7, with season 6 expected sometime in 2026.

So if you’re asking “how many seasons Slow Horses ” right now in early 2026:

  • 5 seasons are available to watch.
  • 2 more seasons (6 and 7) are confirmed.

Information gathered from public forums or data available on the internet and portrayed here.