I can't play gta 5 online with a friend, I have pc game pass and he has xbox one game pass,...

It's important to know which game your friend bought.

I say this because there are currently three versions of the Series X/S game. Gta 5 Online, Gta 5 Series X/S and Grand Theft Auto V (Xbox One and Xbox Series X|S).

If he has purchased Grand Theft Auto V (Xbox One and Xbox Series X|S), which gives access to the game for Xbox One and Xbox Series S/X, he can play online with you as long as he downloads the Xbox One version, so you and he will have the same save and can play online.

If he is a Game Pass Ultimate subscriber he can download the game in the Xbox One version and play with you.

I have a Game Pass/ Gears 5 - Ultimate Edition. And I can't play online. But my brother does not have a Game Pass and he plays....

Hello.

If your son owns a copy of the game and just wants to play online multiplayer, all he needs is Xbox Live.

If your son downloaded GTA V when it was in GamePass, he would need GamePass and Xbox Live to 1) Have access to the game and 2) Play online multiplayer.

Unfortunately, GTA V is no longer in GamePass.

If he is subscribed to Xbox Game Pass Ultimate $14.99 he should be fine as it comes with

• Xbox Game Pass Console
• Xbox Game Pass PC
• Xbox Live

Hope this helps.

Someone's reply to this question on Reddit:

"Regardless of the launcher used on pc you will be put into pc lobbies and there is no crossplay.

There isn’t even crossplay between a new gen console and an old gen. This means someone on an xbox one can’t even play with someone playing the series x version of the game. The same is true with ps4/ps5 (note: they can play together if the new gen player downloads the lower quaility, last gen version).

If you want to play together you’ll either need to get an xbox or they’ll need to get a pc."

https://www.reddit.com/r/xbox/comments/15jr0gt/specific_questions_regarding_playing_gta_v_online/

AFAIK, the only way that Xbox and PC players can play together is if one player has a Series X and the PC player plays the game via cloud gaming (using a Game Pass ultimate sub)

because the PC version is only compatible with series and PS five