FiveM OneSync Infinity Explained: Setup and Sync Modes Guide 2026
Without OneSync, FiveM servers are limited to 32 players. OneSync is the solution that removes this limit and enables servers with hundreds of concurrent players.
Here is a complete explanation of OneSync, its sync modes, and how to configure it for your server.
What Is OneSync
OneSync is FiveM's state awareness system that extends GTA V's original networking model. The base GTA V netcode was designed for a maximum of 32 players. OneSync redesigns how the server tracks and synchronizes entities, peds, and objects to support much larger player counts.
OneSync Sync Modes
When you enable OneSync, you choose between several modes:
OneSync Legacy: The original OneSync mode. Supports up to around 64 players with entity culling. Entities beyond a certain range may not be visible to all players simultaneously.
OneSync Infinity: The current standard mode. Removes the player cap entirely (practical limits depend on your server hardware). Uses a sophisticated state bag system for entity synchronization that allows populated servers with 128 to 300+ players.
OneSync Population: Controls whether GTA V's ambient NPC population (pedestrians and vehicles) is enabled server-wide. Enabling population increases the immersion of RP servers but adds CPU and memory load.
Enabling OneSync
In your server.cfg, add:
set onesync on
Or for the legacy mode:
set onesync legacy
For dedicated server population control:
set onesync_population true
Entity Limits and Performance
With OneSync Infinity, each connected player has a pool of entities they can create. The default limits prevent any single player from spawning unlimited vehicles or objects.
Server-side, each additional player adds synchronisation overhead. The practical player cap for a well-optimised server on good hardware sits around 200 to 300 players. At these numbers, CPU single-core performance becomes critical.
Choosing the Right Hardware
OneSync Infinity servers with active player populations are among the most CPU-demanding FiveM configurations. The game loop runs on a single thread, making high single-core performance the priority.
Space-Node's FiveM server hosting uses AMD Ryzen hardware with strong single-core performance specifically to handle large OneSync Infinity server populations without entity desync or rubberbanding.
If you are planning a 100 plus player RP server, make sure your hosting hardware can actually support OneSync at that scale.
