· 1 min read

ACORN: Teaching AI to Drive in Assetto Corsa

Building an improved AI driving model for Assetto Corsa that actually races cleanly. A look at the technical approach and early results.

#ai#simracing#assetto-corsa#technical

The Default AI Problem

Assetto Corsa’s default AI is… functional. But it has obvious flaws:

  • Unrealistic braking points
  • Inconsistent racing lines
  • Robotic overtaking

ACORN (AI Car Optimal Racing Network) is my attempt to fix this using machine learning.

Approach

Instead of hand-tuning AI parameters, ACORN:

  1. Collects telemetry from fast human laps
  2. Trains a model to predict optimal inputs (throttle, brake, steer)
  3. Deploys the model as a plugin that overrides default AI behavior

Early Results

The model already shows:

  • Smoother corner entry/exit
  • More consistent lap times
  • Cleaner battles (fewer phantom collisions)

Still a lot of work to do, but the foundation is solid. Next up: multi-car race strategy and weather adaptation.

Why This Matters

Better AI means better practice for real drivers, more engaging single-player races, and ultimately a more complete sim racing experience.

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