DeepDetect vs Yandex Vision OCR

DeepDetect is an open-source deep-learning REST API server and web platform for training and managing models. Its listed application areas range from image tagging, object detection, segmentation, and OCR to audio, video, text classification, CSV data, and time-series. Training resources include Jupyter notebooks, dataset validation, hyperparameter presets, and distributed training across one or more GPUs. The platform advertises more than 50 pretrained models for transfer training, and models can be exported for cloud, desktop, or embedded devices. The server runs on CPU or GPU, accepts and returns JSON, and supports Mustache output templates; Elasticsearch is given as an example destination application. PyTorch and TensorRT are listed as backends, with TensorRT able to optimize NVIDIA GPU inference. Ready-to-use API examples are available for Shell, Python, and JavaScript. The free Open Source plan is free. Amazon AWS is priced on request, while the Enterprise plan has no listed price. Installation guidance covers Docker and a source build for Ubuntu 24.04 LTS.

Yandex Vision OCR recognizes printed and handwritten text in images and PDF files. Its models cover general page text, multi-column layouts, handwriting, tables, Markdown text, and mathematical formulas. Document-template models can recognize passports, driver licenses, vehicle registration certificates, and license plates, and return template fields. The service is accessed through gRPC or REST APIs. Results arrive as JSON Lines and can include recognized text and language, page, block, line, word, and image positions, plus layout types such as titles, headers, footnotes, and lists. Supported formats are JPEG, PNG, and PDF. The API accepts files up to 10 MB and images up to 20 megapixels; asynchronous PDF requests can cover up to 200 pages. Results remain on the server for three days. Each successful image or PDF-page recognition counts as one billed unit, while server errors and incorrectly configured requests are not charged. Listed rates range from free for printed text and license plate recognition to $0.01, paid once for several document, handwriting, and table models, billed per unit without VAT. There is no free plan.