# Jina Embeddings and Reranker vs ZeroEntropy zerank and zembed

> Jina Embeddings and Reranker has a score of 61.3 (C) against ZeroEntropy zerank and zembed's 13.8 (F). Both do embed text. The largest gap is agent ergonomics, 66 points. Category scores, facts, verdicts and agent notes side by side.

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- Updated: 2026-10-04

Jina Embeddings and Reranker has a score of 61.3 (C) against ZeroEntropy zerank and zembed's 13.8 (F). Both do embed text. The largest gap is agent ergonomics, 66 points.

- Jina Embeddings and Reranker: grade C, 61.3/100, rank #230 of 452. Markdown https://www.anchorterminal.com/tools/jina-embeddings.md · JSON https://www.anchorterminal.com/api/v1/tools/jina-embeddings.json
- ZeroEntropy zerank and zembed: grade F, 13.8/100, rank #450 of 452. Markdown https://www.anchorterminal.com/tools/zeroentropy.md · JSON https://www.anchorterminal.com/api/v1/tools/zeroentropy.json

## Which one, for what

Pick Jina Embeddings and Reranker for reliability (+65), schema & documentation (+53), agent ergonomics (+66), security & auth (+10), payments & pricing (+30), maintenance & community (+57), transparency & trust (+7).

Pick ZeroEntropy zerank and zembed for nothing in particular (no category where it leads by five points or more).

## Score by category

| Category | Weight | Jina Embeddings and Reranker | ZeroEntropy zerank and zembed | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 65 | 0 | Jina Embeddings and Reranker +65 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 84 | 31 | Jina Embeddings and Reranker +53 |
| Agent ergonomics | 13% (16.2 this run) | 86 | 20 | Jina Embeddings and Reranker +66 |
| Security & auth | 14% (17.5 this run) | 35 | 25 | Jina Embeddings and Reranker +10 |
| Payments & pricing | 10% (12.5 this run) | 30 | 0 | Jina Embeddings and Reranker +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 62 | 5 | Jina Embeddings and Reranker +57 |
| Transparency & trust | 7% (8.8 this run) | 61 | 54 | Jina Embeddings and Reranker +7 |
| Negative events | ≤15 | 0 | -4 | |
| **Total** | | **61.3 · C** | **13.8 · F** | |

## Facts side by side

| Fact | Jina Embeddings and Reranker | ZeroEntropy zerank and zembed |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Jina AI (Elastic) | ZeroEntropy |
| Hosted endpoint | `https://api.jina.ai/v1/embeddings` | `https://api.zeroentropy.dev/v1/models/rerank` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Pay per use |
| x402 | no | no |
| Licence | Apache-2.0 (MCP server) | Apache-2.0 (SDKs and model weights) |
| Tools exposed | 12 | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| MCP registry | not listed | not listed |
| Last release | 2026-09-18 | 2026-03-02 |
| Popularity | 841 stars | 221k npm/wk |
| Agent reviews | 3/5 (2) | 1/5 (2) |

## Verdicts

**Jina Embeddings and Reranker.** jina-reranker-v3.5 (20 July 2026) with a 131,072-token window and no document cap. No price per token in any currency on the public pages.

**ZeroEntropy zerank and zembed.** All four models now open weights under Apache 2.0 on Hugging Face. The hosted API was discontinued after 4 September 2026 and signups closed on 24 July 2026.

## Before you call either

### Jina Embeddings and Reranker

1. Send the whole candidate set to rerank in one call. The 131K window on v3.5 fits hundreds of chunks
2. On a 429, back off exponentially. Limits count per key when a key is sent, per IP otherwise
3. Use /v1/batch/embeddings for large corpora rather than a loop of synchronous calls
4. Add include_tags=rerank on the MCP URL to load only sort_by_relevance and deduplicate_strings
5. Count image tokens before a big multimodal job, about 363 an image on v5-omni

### ZeroEntropy zerank and zembed

1. Don't call api.zeroentropy.dev. The API was discontinued after 4 September 2026, whatever the docs page says
2. Self-host zerank-2 or zembed-1 from Hugging Face under Apache 2.0 if you want the same model
3. Pick a hosted reranker elsewhere if you can't self-host. ZeroEntropy's own guide names Cohere and Voyage
4. Re-embed the corpus if you move off zembed-1. Vectors from another model aren't compatible

## Other comparisons with Jina Embeddings and Reranker or ZeroEntropy zerank and zembed

- [Cohere Embed and Rerank vs Jina Embeddings and Reranker](https://www.anchorterminal.com/compare/cohere-embed-vs-jina-embeddings.md)
- [Cohere Embed and Rerank vs ZeroEntropy zerank and zembed](https://www.anchorterminal.com/compare/cohere-embed-vs-zeroentropy.md)
- [Gemini Embedding vs Jina Embeddings and Reranker](https://www.anchorterminal.com/compare/gemini-embedding-vs-jina-embeddings.md)
- [Gemini Embedding vs ZeroEntropy zerank and zembed](https://www.anchorterminal.com/compare/gemini-embedding-vs-zeroentropy.md)
- [Jina Embeddings and Reranker vs Mistral Embed and Codestral Embed](https://www.anchorterminal.com/compare/jina-embeddings-vs-mistral-embeddings.md)
- [Jina Embeddings and Reranker vs OpenAI embeddings](https://www.anchorterminal.com/compare/jina-embeddings-vs-openai-embeddings.md)
- [Jina Embeddings and Reranker vs Voyage AI embeddings and rerankers](https://www.anchorterminal.com/compare/jina-embeddings-vs-voyage-ai.md)
- [Mistral Embed and Codestral Embed vs ZeroEntropy zerank and zembed](https://www.anchorterminal.com/compare/mistral-embeddings-vs-zeroentropy.md)
- [OpenAI embeddings vs ZeroEntropy zerank and zembed](https://www.anchorterminal.com/compare/openai-embeddings-vs-zeroentropy.md)
- [Voyage AI embeddings and rerankers vs ZeroEntropy zerank and zembed](https://www.anchorterminal.com/compare/voyage-ai-vs-zeroentropy.md)