Jina AI (Embeddings / Reader API)

💳 Trial Credits

Jina's search foundation APIs (embeddings, reranker, Reader) give every new visitor an auto-generated API key with free tokens usable on any Jina model. NOTE: these are embedding, rerank and reader models, not chat LLMs. (Details partly based on third-party sources; check the provider's own page before relying on it.)

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Overview

Provider Type

Trial Credits

API Endpoint

https://api.jina.ai/v1/embeddings

Free Tier Highlights

Free key: 100 RPM100K TPM (embeddings); IP limit 10000 req/60s

Why Choose Jina AI (Embeddings / Reader API)?

Jina AI (Embeddings / Reader API) stands out for its unique features and capabilities. With a developer-friendly API and comprehensive documentation, you can integrate AI capabilities into your applications within minutes.

Quick Start Guide

1

Open jina.ai/embeddings to get the auto-generated key

2

POST to https://api.jina.ai/v1/embeddings with model and input

3

top up on the same key when tokens run out

Available Models

Model Name ID Context Capabilities
Jina Embeddings v5 Text Small Free
jina-embeddings-v5-text-small
- -
Jina Embeddings v5 Text Nano Free
jina-embeddings-v5-text-nano
- -
Jina Embeddings v5 Omni Small Free
jina-embeddings-v5-omni-small
- -
Jina Embeddings v3 Free
jina-embeddings-v3
8 000 Context
-
Jina ColBERT v2 Free
jina-colbert-v2
8 000 Context
-

Free Tier Pricing & Limits

Rate Limit

Requests per minute

Free key: 100 Requests per minute100 000 Tokens per minute (embeddings); IP limit 10000 req/60s

Daily Quota

Requests per day

Token-based

Free Credits

Keys do not expire

Free tokens on an auto-generated key (amount not stated on page)

Use Cases

RAG embedding pipelines

web page to LLM-ready text with Reader

Limitations & Considerations

Embeddings/reranking only, no chat completions

free token amount not stated, and jina-embeddings-v4 is throttled

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