> ## 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.

# STT

> Speech-to-text endpoints

## Overview

Speech-to-text endpoints

### Available Operations

* [CreateTranscription](#createtranscription) - Create transcription
* [CreateTranscriptionMultipart](#createtranscriptionmultipart) - Create transcription

## CreateTranscription

Transcribes audio into text. Accepts base64-encoded audio input as JSON or an OpenAI-style multipart/form-data file upload, and returns the transcribed text.

### Example Usage

```go theme={null}
package main

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

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

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

    res, err := s.STT.CreateTranscription(ctx, components.STTRequest{
        InputAudio: components.STTInputAudio{
            Data: "UklGRiQA...",
            Format: "wav",
        },
        Language: openrouter.Pointer("en"),
        Model: "openai/whisper-large-v3",
    })
    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` | [components.STTRequest](../../models/components/sttrequest.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

**[\*components.STTResponse](../../models/components/sttresponse.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.GatewayTimeoutResponseError | 504 | application/json |
| sdkerrors.EdgeNetworkTimeoutResponseError | 524 | application/json |
| sdkerrors.ProviderOverloadedResponseError | 529 | application/json |
| sdkerrors.APIError | 4XX, 5XX | \*/\* |

## CreateTranscriptionMultipart

Transcribes audio into text. Accepts base64-encoded audio input as JSON or an OpenAI-style multipart/form-data file upload, and returns the transcribed text.

### 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")),
    )

    example, fileErr := os.Open("example.file")
    if fileErr != nil {
        panic(fileErr)
    }

    res, err := s.STT.CreateTranscriptionMultipart(ctx, operations.CreateAudioTranscriptionsMultipartRequest{
        File: operations.CreateAudioTranscriptionsMultipartFile{
            FileName: "example.file",
            Content: example,
        },
        Language: openrouter.Pointer("en"),
        Model: "openai/whisper-large-v3",
    })
    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.CreateAudioTranscriptionsMultipartRequest](../../models/operations/createaudiotranscriptionsmultipartrequest.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

**[\*components.STTResponse](../../models/components/sttresponse.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.GatewayTimeoutResponseError | 504 | application/json |
| sdkerrors.EdgeNetworkTimeoutResponseError | 524 | application/json |
| sdkerrors.ProviderOverloadedResponseError | 529 | application/json |
| sdkerrors.APIError | 4XX, 5XX | \*/\* |