serp.fast

Jina AI

Reader API that converts URLs to clean markdown, plus embeddings, rerankers, and DeepSearch – now part of Elastic.

Nathan Kessler
By Nathan KesslerUpdated

Each tool is evaluated against our methodology using public docs, vendor demos, and hands-on testing.

AI search APIs are the infrastructure layer that gives large language models access to current web information. Unlike traditional search engines, these APIs return semantically relevant, structured results optimized for retrieval-augmented generation (RAG) and AI agent workflows. They are used by AI products that need to answer questions about the real world beyond their training data.

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Features

✓JS Rendering
✓Structured Output
✓Open Source
–Self-Hosted Option
Pricing:FreemiumSee pricing →

Editorial assessment

The Reader API (r.jina.ai) is useful – paste a URL, get clean markdown. Open-source, fast, and the embeddings/reranker models are competitive. The October 2025 Elastic acquisition changes the calculus. Integration with Elasticsearch's ecosystem is a plus, but expect Jina's standalone identity to fade over time.

How Jina AI compares

Exa

Exa focuses on search rather than extraction, complementing rather than competing with Jina's Reader API.

See full Jina AI alternatives comparison →

Frequently asked questions

What is r.jina.ai?

r.jina.ai is Jina AI's Reader API endpoint. Prepend the host to any URL (e.g. `https://r.jina.ai/https://example.com`) and Jina returns the page as clean markdown with images and metadata stripped, ready to drop into an LLM prompt. It handles JS rendering server-side, so single-page apps work without extra config.

Is Jina AI Reader free?

Yes, with limits. r.jina.ai offers a free tier with no API key required (rate-limited), and authenticated requests get a higher free-tier allowance for 1M tokens. Paid plans start around $20/month for additional tokens and faster QPS. Reader API pricing is separate from Jina's embeddings and reranker pricing.

Jina Reader vs. Firecrawl: which should I use?

Use Jina Reader for single-URL conversions and lightweight RAG ingestion – it's faster to integrate and has a generous free tier. Use Firecrawl for site-wide crawls, structured extraction with schemas, or anything that needs proxy rotation and stealth. Firecrawl's crawl primitive is built for breadth; Jina's Reader is built for one-page-at-a-time depth.

Did Elastic acquire Jina AI?

Yes. Elastic acquired Jina AI in October 2025. The Reader API and open-source models remain available for now, and pricing has not changed materially, but expect tighter Elasticsearch integration over the next 12 months and possible long-term consolidation under Elastic's ML stack.

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