ONNX Runtime vs OpenVINO

ONNX Runtime is a free engine for machine-learning inference and training within existing technology stacks. It can run models from frameworks including PyTorch, TensorFlow/Keras, TFLite, and scikit-learn. For inference, it optimizes latency, throughput, memory use, and binary size through graph transformations, accelerator-aware partitioning, and optimized computation kernels. Its Execution Providers connect ONNX models to hardware acceleration libraries for CPUs, GPUs, FPGAs, and specialized NPUs. Listed options include NVIDIA CUDA and TensorRT, Intel OpenVINO, DirectML, Qualcomm QNN, Android NNAPI, Apple CoreML, and WebGPU. Deployment spans cloud servers, edge and mobile devices, and browsers; its web runtime supports browser models and its mobile runtime supports Android and iOS. Supported languages include Python, C#, C++, Java, JavaScript, and Rust. Developers can create smaller web or mobile packages by including only the operators and opsets their models need. The open-source runtime is available on Android, iOS, Linux, macOS, self-hosted environments, web, and Windows.

OpenVINO is a free, open-source toolkit for accelerating AI inference, shrinking model footprints and making more efficient use of hardware. It supports deep learning work in computer vision, large language models and generative AI, with models from PyTorch, TensorFlow, TensorFlow Lite, PaddlePaddle and ONNX. C++, Python, C and NodeJS APIs are available; the NodeJS API is described as early and actively developed. For compression, NNCF provides training-time and post-training methods including pruning, sparsity, quantization and weight compression. Models can be deployed across Intel hardware on-premises, on devices, in browsers or in the cloud. Serving options include OpenVINO Model Server, plus integrations with vLLM and Triton. Packages are listed for Windows, macOS and Linux, with the macOS package for macOS 12.6 and later. OpenVINO does not provide model encryption, decryption or authentication; its security guidance points to third-party tools for these protections. Help channels include an Intel community forum, Intel Support, GitHub issues and Stack Overflow.