AI Rate Card

Cohere Rerank V4.0 Fast · aihubmix

Rerank 4 is the most advanced set of reranker models available today, purpose-built to meet the realities and challenges of enterprise AI search. It delivers best-in-class retrieval, outperforming the likes of MongoDB’s Voyage models and ElasticSearch’s Jina rerankers in overall search relevance, as well as improved latency, flexible deployment options, deep customizability and robust multilingual performance. Designed for business-critical applications across key industries and domains, Rerank 4 sets a new standard for accuracy and adaptability in enterprise search.

Base modelAll models on this baseAll models of the providerto the provider

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Input, $/1M $0.068

Output, $/1M —

Context 32 768

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Last checked 04.11.2026 12:00:14 UTC

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API

OpenAI-compatible API: the official OpenAI SDKs work with this base URL. Replace YOUR_API_KEY with your key from the provider.

API base URL
https://aihubmix.com/api/v1
Endpoint
https://aihubmix.com/api/v1/rerank
Model id
cohere-rerank-v4.0-fast
curl
curl https://aihubmix.com/api/v1/rerank \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "cohere-rerank-v4.0-fast", "query": "what is the capital of France?", "documents": ["Paris is the capital of France.", "Berlin is in Germany."], "top_n": 1}'
Python
import requests

r = requests.post(
    "https://aihubmix.com/api/v1/rerank",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "cohere-rerank-v4.0-fast",
      "query": "what is the capital of France?",
      "documents": [
        "Paris is the capital of France.",
        "Berlin is in Germany."
      ],
      "top_n": 1
    },
)
print(r.json())
JavaScript
const r = await fetch("https://aihubmix.com/api/v1/rerank", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "cohere-rerank-v4.0-fast",
    "query": "what is the capital of France?",
    "documents": [
      "Paris is the capital of France.",
      "Berlin is in Germany."
    ],
    "top_n": 1
  }),
});
console.log(await r.json());
Request (JSON)
{
  "model": "cohere-rerank-v4.0-fast",
  "query": "what is the capital of France?",
  "documents": [
    "Paris is the capital of France.",
    "Berlin is in Germany."
  ],
  "top_n": 1
}
Response (JSON)
{
  "model": "cohere-rerank-v4.0-fast",
  "results": [
    {
      "index": 0,
      "relevance_score": 0.98
    }
  ]
}

The address is taken from the provider's model list; check it against the provider's documentation.

Provider's API documentation

Source: AI Rate Card, https://airatecard.com/en/c/offer%3Aaihubmix%7Ccohere-rerank-v4.0-fast, prices checked 2026-11-04; seller's page: https://aihubmix.com

Technical details

ID: offer:aihubmix|cohere-rerank-v4.0-fast