Training a Smash Bros World Model on a Budget
KrishRShah · x · 2026-07-20
An indie developer argues that world models aren't truly open-source if only massive labs can afford them. To prove this, he successfully trained a world model for Super Smash Bros. (Smash Melee) for just $250.
Key highlights of the project:
- Ultra-low training cost: 200x cheaper than conventional methods, with meaningful ablation studies costing under $5.
- Data & Open Source: Utilized 500 hours of action-aligned gameplay data. Code, data, model weights, and W&B experiment logs are fully open-sourced.
This demonstrates that everyday developers can engage in world model research at a fraction of the typical cost.
More from Research
- AAAI 2027 submission count is joked to be around 50K in an academia meme — prajdabre · 2026-07-22
- Qwen3-VL flags a burned-in clinic name that another PII model missed — MaziyarPanahi · 2026-07-22
- Nature Machine Intelligence paper shows backprop-free goal-directed planning — bravo_abad · 2026-07-22
- National Academies meeting on AI-era math formalization wraps up — AlexKontorovich · 2026-07-22
- Encode Bench finds Base64 output quality tracks AI intelligence scores at 0.91 — Valuable-Repeat-7347 · 2026-07-22
- Sim2real and evaluation are becoming central to robotics simulation work — m_wulfmeier · 2026-07-22