2025-12-02
New
- Updated Fast and Large models, trained with a larger and more carefully curated dataset.
- Large model is WIP, use Fast for best results.
Improved
- Optimized speed of Fast model
- Large changes to MCTS algorithm
2025-11-09
New
- Engine UI overhaul. Enjoy!
2025-11-08
New
- Updated Fast and Large models with new training data (9 million top-level games). The increased accuracy was made possible by an improved data collection process.
- Fast is currently ~2x faster than Large, with more speed improvements coming in the future.
2025-11-05
Updated
- Added CPU multithreaded MCTS, experimental.
2025-11-03
New
- Updated Fast model with new architecture and expanded training data. This is by far the best model I've trained and I'm excited to see how it performs in real world use!
- Updated Large model as well, but it offers reduced performance — use Fast instead.
2025-10-22
New
- Updated Large model:
- Several improvements were made to the training process. The model is now calibrated and symmetrized for more reliable score outputs. We also use more advanced vision processing for better map layout understanding.
- The Fast model will be updated with more improvements in the coming weeks.
2025-10-21
New
- Updated Fast and Large models:
- They can now natively understand each map's layout for more contextually accurate picks.
- Some fixes to the training process.
- A new Experimental model is now available for early testing new versions.
2025-10-17
New
- Implemented some more advanced MCTS techniques, now available by default. Search should feel more insightful.
- Reworked search effort to control max search time
2025-10-14
New
- Further large improvements to MCTS.
(Technical detail: now two different models, value and policy, are used in the MCTS search)
2025-10-13
New
- New Large model, trained with a smaller but higher quality dataset. (~5 million top ladder & ranked games)
Updated
- Simplified engine configuration UI - less clutter and more intuitive.
- Major update to engine: you can now see real-time updates as the engine thinks!
Fixed
2025-09-25
Updated
- New Large model trained with doubled training data size!
- Widened map pool to adjust for current ranked map rotation.
2025-09-18
Updated
- Further improved brawler selector sorting order.
2025-09-17
Updated
- Improved the brawler selector UX, now smoother and more intuitive.
2025-09-15
Model update
- New model: Fast — optimized for speed.
Added
- Model selector. Choose between Large (the previous default model) and Fast models based on your needs.
2025-09-14
Model update
- Doubled training data size.
- Doubled model size.
2025-09-13
Model update
- New model trained on ~2 million top player games
- Training data has been updated to include only top ladder & ranked games.
Added
- New MCTS search algorithm, now set as default. Provides better draft quality and faster performance,
and you can adjust search time via the iterations setting.
- Modes/maps have been updated to match the current ranked map pool.
Coming soon
2025-09-12
Added
- New model with improved accuracy and map awareness
- Engine UI polish and performance improvements
2025-09-10
Initial Release
- First public release of Brawl Stars Draft Engine