Mystery model 'SpaceBunny' tops OpenRouter charts with standout 3D and frontend skills
智东西 · wechat · 2026-09-28
The anonymous model SpaceBunny, launched September 23, has climbed to #2 on OpenCode's usage leaderboard and briefly topped OpenRouter — free to use, with 1M context, multimodal input, and no data retention during its stealth period. It's widely believed to be a Flash-tier model from a yet-unnamed vendor.
- 3D standout: its Three.js mechanical bee and truck models were judged better than Opus 5's, though its voxel garden trailed GPT-6 Astra on fine details.
- Frontend polish praised across the board: a 1,564-line WebGL GPU fluid simulation in one shot, a click-morphing black hole page, and a solar-system observatory wowed developers.
- Not flawless: a racing game kept clipping and inverted controls after multiple fixes; a flight sim took 94 minutes and had control quirks.
- Identity unconfirmed: guesses range from a new Kimi (Moonshot) to MiniMax, which coincidentally launched M3.1-Flash-Preview on Sept 28.
Related event: Anonymous Model SpaceBunny Tops OpenRouter Charts(2 posts)→
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