ONNX Runtime

Inference & Compute · Free + paid

Cross-platform ML model accelerator

At a glance

Made by
Microsoft
Korean
None (English and a few others only)
API
Yes
Available on
Windows, Mac, iOS, Android, Web, API
Open source
MIT
GitHub
22,077 stars · MIT

What is ONNX Runtime?

ONNX Runtime is a cross-platform machine learning accelerator that speeds up training and inference on your existing technology stack. It supports models from PyTorch, TensorFlow/Keras, scikit-learn, LightGBM, XGBoost, and others, and optimizes latency, throughput, and memory on CPUs, GPUs, and NPUs. It runs with languages such as Python, C#, C++, Java, JavaScript, and Rust, and on Linux, Windows, Mac, iOS, Android, and web browsers. It is also used in Microsoft products such as Windows, Office, and Bing, and it supports on-device training and generative AI (onnxruntime-genai).

  • Hardware-accelerated optimization for CPUs, GPUs, and NPUs
  • Multi-language support including Python, C#, C++, Java, JavaScript, and Rust
  • Runs in web browsers (ONNX Runtime Web)
  • ONNX Runtime Mobile for Android and iOS apps
  • On-device training
  • Accelerating large-model training on multi-node NVIDIA GPUs
  • Generative AI and LLM integration (onnxruntime-genai)
  • Execution providers such as CUDA, TensorRT, OpenVINO, DirectML, and CoreML

Who uses ONNX Runtime and for what

  • Adding AI features to mobile apps
  • Running ML models in the browser
  • Reducing training time for large transformer models

Pricing

Open source (free)

MIT 라이선스 오픈소스 추론·학습 가속 라이브러리(pip 설치), 요금 표기 없음

공식 페이지 확인 2026-10-14(산출 규칙 2026-10-15)

AI tools similar to ONNX Runtime (alternatives)

ONNX Runtime vs. alternatives at a glance

AIPricingCombos on the mapConnected toolsFreeCheapest monthlyKorean
ONNX RuntimeFree + paid06——No
llama.cppFree + paid06———
SGLangFree + paid06——No
Sol EngineFree + paid06——No
TensorRTFree + paid06No—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.

ONNX Runtime 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 ONNX Runtime for free?

Open source (free). Prices can change, so check the official site before paying.

What AI can I use instead of ONNX Runtime?

Tools that do the same job, such as llama.cpp, SGLang, Sol Engine, TensorRT, are connected to it on the map.

Can I use ONNX Runtime 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.

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