Jina AI

service active freemium

A search AI company providing embedding models, rerankers, and search infrastructure. Jina offers open-weight embedding models (jina-embeddings), a reranker API, and reader/scraper tools. Known for multilingual embeddings and long-context support (8K tokens).

Implements

Concepts this tool claims to implement:

  • Embedding primary

    jina-embeddings-v2 and v3 models with 8K context. Multilingual support for 100+ languages. Open weights available on Hugging Face. Optimized for retrieval with late interaction and ColBERT variants.

  • Reranking primary

    jina-reranker models for cross-encoder reranking. Improves retrieval precision by re-scoring initial candidates.

  • Retriever secondary

    Reader API for extracting clean content from URLs. Useful for building retrieval pipelines that need web content.

Integration Surfaces

  • REST API
  • Python SDK
  • Hugging Face models
  • LangChain integration
  • LlamaIndex integration

Details

Vendor
Jina AI
License
Apache-2.0 (models) / Proprietary (API)
Runs On
cloud, local
Used By
human, agent, system

Links

Notes

Jina AI started as a neural search framework (Jina, DocArray) and pivoted to embedding models and APIs. Open-weight models can be self-hosted. Strong multilingual capabilities make it good for international use cases.

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