Dev Runs World Model LingBot-World 2.0 at 16 FPS on One RTX 5090, 2.5x Faster Than SGLang
Kaarel_Kaarelson · reddit · 2026-09-19
A developer optimized the LingBot-World 2.0 1.3B world model to run at real-time 16 FPS on a single RTX 5090 — up from 6 FPS — and open-sourced the code.
- 2.5x faster than SGLang Diffusion, 1.9x faster than NVIDIA FlashDreams; other inference engines max out at 6-8 FPS
- Method: lower-precision ops with lossless quality, swapped FlashAttention for SageAttention, plus custom kernels
- Resolution 832×464; upload an image + prompt to predict next frames, explore with AWSD and mouse via lingbot play dragon
- Linux only; 5090 recommended, 4090 estimated 12 FPS
- Code: github.com/kaarelkaarelson/lingbot-world-v2-realtime
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