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---
title: "Rerank"
description: "Rerank endpoints"
---
## Overview
Rerank endpoints
### Available Operations
* [rerank](#rerank) - Submit a rerank request
## rerank
Submits a rerank request to the rerank router
### Example Usage
```python
from openrouter import OpenRouter
import os
with OpenRouter(
http_referer="<value>",
x_open_router_title="<value>",
x_open_router_categories="<value>",
api_key=os.getenv("OPENROUTER_API_KEY", ""),
) as open_router:
res = open_router.rerank.rerank(documents=[
"Paris is the capital of France.",
"Berlin is the capital of Germany.",
], model="cohere/rerank-v3.5", query="What is the capital of France?")
# Handle response
print(res)
```
### Parameters
| Parameter | Type | Required | Description | Example |
| ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| `documents` | List[[operations.Document](../../operations/document.mdx)] | :heavy_check_mark: | The list of documents to rerank. Documents may be plain strings, or structured objects with `text` and/or `image` for multimodal models. | [<br/>"Paris is the capital of France.",<br/>"Berlin is the capital of Germany."<br/>] |
| `model` | *str* | :heavy_check_mark: | The rerank model to use | cohere/rerank-v3.5 |
| `query` | *str* | :heavy_check_mark: | The search query to rerank documents against | What is the capital of France? |
| `http_referer` | *Optional[str]* | :heavy_minus_sign: | The app identifier should be your app's URL and is used as the primary identifier for rankings.<br/>This is used to track API usage per application.<br/> | |
| `x_open_router_title` | *Optional[str]* | :heavy_minus_sign: | The app display name allows you to customize how your app appears in OpenRouter's dashboard.<br/> | |
| `x_open_router_categories` | *Optional[str]* | :heavy_minus_sign: | Comma-separated list of app categories (e.g. "cli-agent,cloud-agent"). Used for marketplace rankings.<br/> | |
| `provider` | [OptionalNullable[components.ProviderPreferences]](../../components/providerpreferences.mdx) | :heavy_minus_sign: | N/A | \{<br/>"allow_fallbacks": true<br/>} |
| `top_n` | *Optional[int]* | :heavy_minus_sign: | Number of most relevant documents to return | 3 |
| `retries` | [Optional[utils.RetryConfig]](../../models/utils/retryconfig.mdx) | :heavy_minus_sign: | Configuration to override the default retry behavior of the client. | |
### Response
**[operations.CreateRerankResponse](../../operations/creatererankresponse.mdx)**
### Errors
| Error Type | Status Code | Content Type |
| -------------------------------------- | -------------------------------------- | -------------------------------------- |
| errors.BadRequestResponseError | 400 | application/json |
| errors.UnauthorizedResponseError | 401 | application/json |
| errors.PaymentRequiredResponseError | 402 | application/json |
| errors.NotFoundResponseError | 404 | application/json |
| errors.TooManyRequestsResponseError | 429 | application/json |
| errors.InternalServerResponseError | 500 | application/json |
| errors.BadGatewayResponseError | 502 | application/json |
| errors.ServiceUnavailableResponseError | 503 | application/json |
| errors.EdgeNetworkTimeoutResponseError | 524 | application/json |
| errors.ProviderOverloadedResponseError | 529 | application/json |
| errors.OpenRouterDefaultError | 4XX, 5XX | \*/\* |