Sol Engine
Inference & Compute · Free + paid
NVIDIA's training-free acceleration framework for video diffusion inference
At a glance
- Made by
- NVIDIA Research (Efficient AI Team & Singapore Lab)
- Korean
- None (English and a few others only)
- Open source
- Apache-2.0
- GitHub
- 9,293 stars · Apache-2.0
What is Sol Engine?
Sol Video Inference Engine is an agent-based framework that accelerates video diffusion model inference without additional training. It combines five techniques, caching, sparse attention, token pruning, quantization, and kernel fusion, into a deployment stack tailored to each model, hardware, and serving setup. Per-technique skill agents test whether each applies, an integration agent bundles the candidates, and human verifiers give feedback on efficiency and quality. It reports end-to-end speedups of more than 2x with almost no loss in visual quality on Cosmos3-Super, LTX-2.3, and SANA-Video.
- Training-free acceleration
- Full-stack combination of caching, sparse attention, token pruning, quantization, and kernel fusion
- Acceleration tailored per model × hardware × configuration
- Parallel skill agents and a global integrator
- 2–3x end-to-end speedup (2.27–2.77x versus SGLang in the demo)
Who uses Sol Engine and for what
- Reduced inference latency for video generation models such as Cosmos3-Super, LTX-2.3, and SANA-Video
Pricing
Open source (free)
NVIDIA 연구팀의 연구용 가속 프레임워크(논문·코드 링크 공개), 요금 표기 없음
공식 페이지 확인 2026-10-14(산출 규칙 2026-10-15)
AI tools similar to Sol Engine (alternatives)
Sol Engine vs. alternatives at a glance
| AI | Pricing | Combos on the map | Connected tools | Free | Cheapest monthly | Korean |
|---|---|---|---|---|---|---|
| Sol Engine | Free + paid | 0 | 6 | — | — | No |
| llama.cpp | Free + paid | 0 | 6 | — | — | — |
| ONNX Runtime | Free + paid | 0 | 6 | — | — | No |
| SGLang | Free + paid | 0 | 6 | — | — | No |
| TensorRT | Free + paid | 0 | 6 | No | — | Yes |
0 of these 5 tools have a free plan.
Combo and connection counts are based on the relationships recorded on AI Galaxy Map (2026-10-26); they are not a quality ranking.
Sol Engine on AI Galaxy Map
- One of 43 AI tools in the Inference & Compute field.
- Connected to 6 other tools — #6 in its field.
Frequently asked questions
Can I use Sol Engine for free?
Open source (free). Prices can change, so check the official site before paying.
What AI can I use instead of Sol Engine?
Tools that do the same job, such as llama.cpp, ONNX Runtime, SGLang, TensorRT, are connected to it on the map.
Can I use Sol Engine in Korean?
None (English and a few others only)
Sources (official pages)
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.