Qwen3 Reranker 8B · impossibl

Name: Qwen3 Reranker 8B
Brand: Qwen
Price: 0.2 USD
Availability: InStock

Qwen3 Reranker 8B is Alibaba's model for scoring how well a document answers a query. It reorders candidate documents by relevance to refine search results and select context for retrieval-augmented generation.

Base model All models on this base All models of the provider to the provider

Input, $/1M $0.20

Output, $/1M —

Context 40 960

Accepts text

Last checked 04.11.2026 12:00:14 UTC

Source provider's page

Price alerts

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://api.impossibl.com/v1`
Endpoint	`https://api.impossibl.com/v1/rerank`
Model id	`qwen/qwen3-reranker-8b`

curl

curl https://api.impossibl.com/v1/rerank \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "qwen/qwen3-reranker-8b", "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://api.impossibl.com/v1/rerank",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "qwen/qwen3-reranker-8b",
      "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://api.impossibl.com/v1/rerank", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "qwen/qwen3-reranker-8b",
    "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": "qwen/qwen3-reranker-8b",
  "query": "what is the capital of France?",
  "documents": [
    "Paris is the capital of France.",
    "Berlin is in Germany."
  ],
  "top_n": 1
}

Response (JSON)

{
  "model": "qwen/qwen3-reranker-8b",
  "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%3Aimpossibl%7Cqwen/qwen3-reranker-8b, prices checked 2026-11-04; seller's page: https://impossibl.com/models/qwen/qwen3-reranker-8b

Technical details

ID: offer:impossibl|qwen/qwen3-reranker-8b