> ## 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 | \*/\* |