# Gemini API

> Provider: **Google**
> Source: https://www.pixazo.ai/models/gemini

Google Gemini Flash text-to-speech generation.

## Gemini 3.1 Flash TTS

### Text to Speech

## Base URL

```
https://gateway.pixazo.ai/gemini-flash-tts/v1
```

## Authentication

All requests require an API key passed via header.

Header

Type

Required

Description

Ocp-Apim-Subscription-Key

string

Yes

Your API subscription key

## Gemini Flash TTS generate request - Gemini Flash TTS API

## Request Code

HTTP Python JavaScript cURL

```
POST https://gateway.pixazo.ai/gemini-flash-tts/v1/gemini-flash-tts/generate
Content-Type: application/json
Cache-Control: no-cache
Ocp-Apim-Subscription-Key: YOUR_SUBSCRIPTION_KEY

{
  "text": "Hey there, I am a new text to speech model and I can say things in many different ways.",
  "voice": "Algenib",
  "prompt": "Say this in a dramatic, theatrical tone",
  "language_code": "en-GB"
}
```

```
import requests

url = "https://gateway.pixazo.ai/gemini-flash-tts/v1/gemini-flash-tts/generate"
headers = {
    "Content-Type": "application/json",
    "Cache-Control": "no-cache",
    "Ocp-Apim-Subscription-Key": "YOUR_SUBSCRIPTION_KEY"
}
data = {
    "text": "Hey there, I am a new text to speech model and I can say things in many different ways.",
    "voice": "Algenib",
    "prompt": "Say this in a dramatic, theatrical tone",
    "language_code": "en-GB"
}

response = requests.post(url, json=data, headers=headers)
print(response.json())
```

```
const url = 'https://gateway.pixazo.ai/gemini-flash-tts/v1/gemini-flash-tts/generate';

const data = {
  text: 'Hey there, I am a new text to speech model and I can say things in many different ways.',
  voice: 'Algenib',
  prompt: 'Say this in a dramatic, theatrical tone',
  language_code: 'en-GB'
};

fetch(url, {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Cache-Control': 'no-cache',
    'Ocp-Apim-Subscription-Key': 'YOUR_SUBSCRIPTION_KEY'
  },
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));
```

```
curl -X POST "https://gateway.pixazo.ai/gemini-flash-tts/v1/gemini-flash-tts/generate" \
  -H "Content-Type: application/json" \
  -H "Cache-Control: no-cache" \
  -H "Ocp-Apim-Subscription-Key: YOUR_SUBSCRIPTION_KEY" \
  --data-raw '{
    "text": "Hey there, I am a new text to speech model and I can say things in many different ways.",
    "voice": "Algenib",
    "prompt": "Say this in a dramatic, theatrical tone",
    "language_code": "en-GB"
  }'
```

## Output

```
{
  "request_id": "gemini-flash-tts_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/gemini-flash-tts_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}
```

[Try Now](https://api.pixazo.ai/api-details#api=gemini-flash-tts&operation=submitTtsRequest)

## Webhook (Optional)

Add the `X-Webhook-URL` header to your generate request to receive a POST callback instead of polling.

```
X-Webhook-URL: https://your-server.com/webhook/callback
```

## Request Parameters - Gemini Flash TTS generate request

Parameter

Required

Type

Description

text

Yes

string

The textual content to convert into speech. Must be a valid string of readable language.

voice

No

string

Voice preset name used for narration (e.g., `Algenib`). Controls timbre and speaker identity.

prompt

No

string

Style instruction that shapes delivery, emotion, pacing, or accent (e.g., `Say this in a dramatic, theatrical tone`).

language\_code

No

string

BCP-47 language code hint for pronunciation (e.g., `en-US`, `en-GB`).

## Example Request

```
{
  "text": "Hey there, I am a new text to speech model and I can say things in many different ways.",
  "voice": "Algenib",
  "prompt": "Say this in a dramatic, theatrical tone",
  "language_code": "en-GB"
}
```

## Response

```
{
  "request_id": "gemini-flash-tts_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/gemini-flash-tts_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}
```

## Request Headers

Header

Value

Content-Type

application/json

Cache-Control

no-cache

Ocp-Apim-Subscription-Key

YOUR\_SUBSCRIPTION\_KEY

## Response Handling

Common status codes.

Code

Meaning

202

Accepted — Request queued

400

Bad Request

401

Unauthorized

402

Insufficient Balance

403

Forbidden

429

Too Many Requests

500

Internal Server Error

## Error Responses

Queue system errors and model validation errors.

### Queue System Errors

```
// 402 — Insufficient balance
{
  "error": "Insufficient Balance",
  "message": "Your wallet does not have enough balance. Required: $0.04"
}
```

```
// 400 — Model not found
{
  "error": "Model not found",
  "message": "Model 'gemini-flash-tts' not found or is disabled"
}
```

### Error via Status/Webhook

```
{
  "request_id": "gemini-flash-tts_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "gemini-flash-tts",
  "error": "Description of the error",
  "output": null
}
```

## Retrieving Results

Poll the universal status endpoint to check progress and retrieve results.

### Endpoint

```
GET https://gateway.pixazo.ai/v2/requests/status/{request_id}
Ocp-Apim-Subscription-Key: YOUR_API_KEY
```

## cURL Example

```
curl -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  "https://gateway.pixazo.ai/v2/requests/status/gemini-flash-tts_019d9a88-bba1-7f39-2655-a0c5f4a109529"
```

## Response (Completed)

```
{
  "request_id": "gemini-flash-tts_019d9a88-bba1-7f39-2655-a0c5f4a109529",
  "status": "COMPLETED",
  "model_id": "gemini-flash-tts",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/gemini-flash-tts_019d9a88-bba1-7f39-2655-a0c5f4a109529/output.wav"
    ],
    "media_type": "audio/wav"
  },
  "created_at": "2026-04-17T08:22:25.893Z",
  "updated_at": "2026-04-17T08:22:43.000Z",
  "completed_at": "2026-04-17T08:22:43.000Z"
}
```

## Response Fields

Field

Type

Description

request\_id

string

Unique request identifier

status

string

QUEUED, PROCESSING, COMPLETED, FAILED, or ERROR

model\_id

string

Model that processed the request

error

string|null

Error message if failed

output.media\_url

array

URLs to generated media (R2 CDN)

output.media\_type

string

MIME type (audio/wav)

created\_at

string

When request was created

completed\_at

string|null

When request completed

polling\_url

string

Status URL (initial response only)

## Status Values

Status

Description

QUEUED

Request accepted, waiting to be processed

PROCESSING

Being processed by the model

COMPLETED

Done — output contains the result

FAILED

Failed — check error field

ERROR

System error — not charged

## Status Flow

```
QUEUED → PROCESSING → COMPLETED
                    → FAILED
                    → ERROR
```

## Typical Workflow

1.  **Send a generate request** to the API endpoint
2.  **Save the `request_id`** from the response
3.  **Poll** every 5-10 seconds: `GET /v2/requests/status/{request_id}`
4.  **When `status` is `"COMPLETED"`**, download from `output.media_url`

**Tip:** Use `X-Webhook-URL` header to get a callback instead of polling.