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Developer fine-tunes 2B model to play Doom on Mac using MLX

A developer has successfully fine-tuned a 2-billion parameter decision model to play the game Doom on a Mac using the MLX framework. The model, trained on approximately 3,000 frames, was able to achieve an average of 23.2 kills over 20 episodes, demonstrating its capability in identifying and reacting to in-game threats. The open-source tool, mlx-decision, used for this project, allows for LoRA fine-tuning on Apple Silicon Macs and is available via pip install. AI

IMPACT Demonstrates the potential for smaller, specialized models to perform complex tasks on consumer hardware.

RANK_REASON Developer fine-tuned an existing model architecture for a specific task (playing a game) using an open-source tool.

Read on r/LocalLLaMA →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Developer fine-tunes 2B model to play Doom on Mac using MLX

How we ranked this

Signal score
2 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Developer fine-tuned an existing model architecture for a specific task (playing a game) using an open-source tool.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Same-day
Cluster formed today. Ranking reflects the current source set at time of score.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/LocalLLaMA TIER_1 English(EN) · /u/armbues ·

    I fine-tuned a 2B decision model to play Doom on my Mac in 43 minutes (open source, MLX)

    <table> <tr><td> <a href="https://www.reddit.com/r/LocalLLaMA/comments/1xryvbg/i_finetuned_a_2b_decision_model_to_play_doom_on/"> <img alt="I fine-tuned a 2B decision model to play Doom on my Mac in 43 minutes (open source, MLX)" src="https://external-preview.redd.it/d3RrZ2UwNHps…