> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Rerank

> Rerank endpoints

## Overview

Rerank endpoints

### Available Operations

* [Rerank](#rerank) - Submit a rerank request

## Rerank

Submits a rerank request to the rerank router

### Example Usage

```go theme={null}
package main

import(
	"context"
	"os"
	openrouter "github.com/OpenRouterTeam/go-sdk"
	"github.com/OpenRouterTeam/go-sdk/models/operations"
	"log"
)

func main() {
    ctx := context.Background()

    s := openrouter.New(
        openrouter.WithSecurity(os.Getenv("OPENROUTER_API_KEY")),
    )

    res, err := s.Rerank.Rerank(ctx, operations.CreateRerankRequest{
        Documents: []operations.Document{
            operations.CreateDocumentStr(
                "Paris is the capital of France.",
            ),
            operations.CreateDocumentStr(
                "Berlin is the capital of Germany.",
            ),
        },
        Model: "cohere/rerank-v3.5",
        Query: "What is the capital of France?",
    })
    if err != nil {
        log.Fatal(err)
    }
    if res != nil {
        // handle response
    }
}
```

### Parameters

| Parameter | Type                                                                              | Required             | Description                                |
| --------- | --------------------------------------------------------------------------------- | -------------------- | ------------------------------------------ |
| `ctx`     | [context.Context](https://pkg.go.dev/context#Context)                             | :heavy\_check\_mark: | The context to use for the request.        |
| `request` | [operations.CreateRerankRequest](../../models/operations/creatererankrequest.mdx) | :heavy\_check\_mark: | The request object to use for the request. |
| `opts`    | \[][operations.Option](../../models/operations/option.mdx)                        | :heavy\_minus\_sign: | The options for this request.              |

### Response

**[\*operations.CreateRerankResponse](../../models/operations/creatererankresponse.mdx), error**

### Errors

| Error Type                                | Status Code | Content Type     |
| ----------------------------------------- | ----------- | ---------------- |
| sdkerrors.BadRequestResponseError         | 400         | application/json |
| sdkerrors.UnauthorizedResponseError       | 401         | application/json |
| sdkerrors.PaymentRequiredResponseError    | 402         | application/json |
| sdkerrors.ForbiddenResponseError          | 403         | application/json |
| sdkerrors.NotFoundResponseError           | 404         | application/json |
| sdkerrors.PayloadTooLargeResponseError    | 413         | application/json |
| sdkerrors.TooManyRequestsResponseError    | 429         | application/json |
| sdkerrors.InternalServerResponseError     | 500         | application/json |
| sdkerrors.BadGatewayResponseError         | 502         | application/json |
| sdkerrors.ServiceUnavailableResponseError | 503         | application/json |
| sdkerrors.EdgeNetworkTimeoutResponseError | 524         | application/json |
| sdkerrors.ProviderOverloadedResponseError | 529         | application/json |
| sdkerrors.APIError                        | 4XX, 5XX    | \*/\*            |