It's impossible to give a definitive number of exoplanets discovered, as the number constantly changes!

Here's why:

* New discoveries: Astronomers are constantly discovering new exoplanets.

* Verification: It can take time to verify a planet's existence, and some candidates may later be reclassified.

However, as of today (October 26, 2023), the number of confirmed exoplanets is over 5,000!

The [NASA Exoplanet Archive](https://exoplanetarchive.ipac.caltech.edu/) is a great resource to stay up-to-date on exoplanet discoveries.