Jina AI

Jina AI is a search artificial intelligence company that provides a 'Search Foundation' for developers and businesses to build multimodal and multilingual search applications. Founded in Berlin in 2020 by Han Xiao, Nan Wang, Bing He, and Xuanbin He, the company develops open-source AI models and tools designed to handle various data types including text, images, and videos. The core technology revolves around neural search, which uses deep learning to understand the context and semantics of queries beyond simple keyword matching. Xiao, who serves as CEO, brought over a decade of experience in machine learning infrastructure from companies like Tencent and Zalando to the venture. His personal affinity for Berlin, combined with the city's affordability and tech potential, made it the chosen headquarters.

The company's main offerings include embeddings, rerankers, and small language models (SLMs). Its products are designed to create sophisticated search and retrieval-augmented generation (RAG) systems. Jina AI provides tools like `jina-embeddings-v2` which supports a long context length of 8,192 tokens for tasks such as text classification and summarization. The firm has also developed a suite of open-source projects including Jina, a cloud-native neural search framework; DocArray, a data structure for unstructured data; and Finetuner, for refining deep neural networks. This commitment to open-source development aims to democratize access to advanced AI search technology. The business model operates on a freemium basis, offering tiered pricing for API usage and premium features, with an estimated annual revenue of around $17.5 million. Clients range from e-commerce and media companies to banks and consulting firms, using the tools for everything from product search and recommendations to internal data analysis.

Jina AI successfully raised a total of $39 million over two funding rounds. This included a Series A round of $30 million in November 2021, led by Canaan Partners with participation from investors like GGV Capital and SAP.iO. On October 9, 2025, Jina AI was acquired by Elastic (NYSE: ESTC), the Search AI Company. Following the acquisition, Han Xiao became the VP of AI at Elastic. The integration aims to combine Jina AI's advanced models with Elastic's platform to enhance capabilities in vector search, RAG, and context engineering.

Keywords: neural search, multimodal AI, embeddings, rerankers, small language models, retrieval-augmented generation, RAG, open-source AI, vector search, semantic search, multilingual search, AI developer tools, Han Xiao, Elastic, cloud-native search, deep learning search, unstructured data, Finetuner, DocArray, Jina Framework, enterprise search, generative AI, AI applications, data retrieval, context engineering