# Google models on GPTProto

> One GPTProto API key covers every model listed below. Text models share an OpenAI-compatible API — swap the `model` id. Image / video / audio models use a submit-and-poll API; follow each model's own llms.txt.

## Overview

- **Models**: 28
- **Vendor**: Google
- **Base URL**: `https://gptproto.com/v1`
- **Provider page**: https://gptproto.com/model/google

## Authentication

Every request needs a GPTProto API key in the `Authorization` header. Create one at https://gptproto.com/dashboard/api-key, then export it:

```bash
export GPTPROTO_API_KEY="your-api-key"
```

Header: `Authorization: Bearer $GPTPROTO_API_KEY`. Use `base_url` `https://gptproto.com/v1` with any OpenAI-compatible SDK.

## Text models

Call these with the OpenAI-compatible Chat Completions (or Responses / Messages / Gemini) endpoints. Change only the `model` field.

| Model ID | Name | Context | Input / 1M | Output / 1M | Guide |
| --- | --- | --- | --- | --- | --- |
| `gemini-3.7-flash` | Gemini 3.7 Flash | 1.05M | $0.45 | $2.25 | [llms.txt](https://gptproto.com/model/google/gemini-3.7-flash/llms.txt) |
| `gemini-3.6-flash` | Gemini 3.6 Flash | 1.05M | $0.45 | $2.25 | [llms.txt](https://gptproto.com/model/google/gemini-3.6-flash/llms.txt) |
| `gemini-3.5-flash-lite` | Gemini 3.5 Flash Lite | 1.05M | $0.18 | $1.5 | [llms.txt](https://gptproto.com/model/google/gemini-3.5-flash-lite/llms.txt) |
| `gemini-3.5-flash` | Gemini 3.5 Flash | 1.05M | $0.9 | $5.4 | [llms.txt](https://gptproto.com/model/google/gemini-3.5-flash/llms.txt) |
| `gemini-3.1-flash-lite-preview` | Gemini 3.1 Flash Lite Preview | 1.05M | $0.15 | $0.9 | [llms.txt](https://gptproto.com/model/google/gemini-3.1-flash-lite-preview/llms.txt) |
| `gemini-3.1-pro-preview` | Gemini 3.1 Pro Preview | 1.05M | $1.2 | $7.2 | [llms.txt](https://gptproto.com/model/google/gemini-3.1-pro-preview/llms.txt) |
| `gemini-3-flash-preview` | Gemini 3 Flash Preview | 1.05M | $0.3 | $1.8 | [llms.txt](https://gptproto.com/model/google/gemini-3-flash-preview/llms.txt) |
| `gemini-3-pro-preview` | Gemini 3 Pro Preview | 1.05M | $1.2 | $7.2 | [llms.txt](https://gptproto.com/model/google/gemini-3-pro-preview/llms.txt) |
| `gemini-2.5-flash-nothinking` | Gemini 2.5 Flash Nothinking | 1.05M | $0.18 | $1.5 | [llms.txt](https://gptproto.com/model/google/gemini-2.5-flash-nothinking/llms.txt) |
| `gemini-2.5-pro` | Gemini 2.5 Pro | 1.05M | $0.75 | $6 | [llms.txt](https://gptproto.com/model/google/gemini-2.5-pro/llms.txt) |
| `gemini-2.5-flash` | Gemini 2.5 Flash | 1.05M | $0.18 | $1.5 | [llms.txt](https://gptproto.com/model/google/gemini-2.5-flash/llms.txt) |
| `gemini-2.0-flash` | Gemini 2.0 Flash | — | $0.06 | $0.24 | [llms.txt](https://gptproto.com/model/google/gemini-2.0-flash/llms.txt) |

## Usage example

The snippets below call `gemini-3.7-flash`. For any other text model in the table, keep the same request and change `"model"`.

```bash
curl --request POST "https://gptproto.com/v1/chat/completions" \
  --header "Authorization: Bearer $GPTPROTO_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "model": "gemini-3.7-flash",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'
```

```python
import os
import requests

url = "https://gptproto.com/v1/chat/completions"
headers = {
  "Authorization": f"Bearer {os.environ['GPTPROTO_API_KEY']}",
  "Content-Type": "application/json"
}
payload = {
  "model": "gemini-3.7-flash",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ]
}

response = requests.request("POST", url, headers=headers, json=payload)
print(response.json())
```

```typescript
const response = await fetch("https://gptproto.com/v1/chat/completions", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.GPTPROTO_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "gemini-3.7-flash",
    messages: [
      {
        role: "user",
        content: "Hello",
      },
    ],
  }),
});

const data = await response.json();
console.log(data);
```

## Image, video, and audio models

These models use a submit-and-poll API (not OpenAI Chat Completions). Read the per-model guide for the exact endpoint, parameters, and example request.

| Model ID | Name | Type | Price | Guide |
| --- | --- | --- | --- | --- |
| `gemini-3.1-flash-lite-image` | Gemini 3.1 Flash Lite Image | image | $0.0202 / run | [llms.txt](https://gptproto.com/model/google/gemini-3.1-flash-lite-image/llms.txt) |
| `gemini-3.1-flash-image` | Gemini 3.1 Flash Image | image | $0.0402 / run | [llms.txt](https://gptproto.com/model/google/gemini-3.1-flash-image/llms.txt) |
| `gemini-3.1-flash-image-preview` | Gemini 3.1 Flash Image Preview | image | $0.0402 / run | [llms.txt](https://gptproto.com/model/google/gemini-3.1-flash-image-preview/llms.txt) |
| `gemini-2.5-flash-preview-tts` | Gemini 2.5 Flash Preview Tts | audio | see model page | [llms.txt](https://gptproto.com/model/google/gemini-2.5-flash-preview-tts/llms.txt) |
| `gemini-2.5-pro-preview-tts` | Gemini 2.5 Pro Preview Tts | audio | see model page | [llms.txt](https://gptproto.com/model/google/gemini-2.5-pro-preview-tts/llms.txt) |
| `gemini-3-pro-image-preview` | Gemini 3 Pro Image Preview | image | $0.0804 / run | [llms.txt](https://gptproto.com/model/google/gemini-3-pro-image-preview/llms.txt) |
| `veo-3.1-fast-generate-preview` | Veo 3.1 Fast Generate Preview | video | $1.2 / run | [llms.txt](https://gptproto.com/model/google/veo-3.1-fast-generate-preview/llms.txt) |
| `veo-3.1-generate-preview` | Veo 3.1 Generate Preview | video | $3.2 / run | [llms.txt](https://gptproto.com/model/google/veo-3.1-generate-preview/llms.txt) |
| `gemini-2.5-flash-image-hd` | Gemini 2.5 Flash Image Hd | image | $0.03 / run | [llms.txt](https://gptproto.com/model/google/gemini-2.5-flash-image-hd/llms.txt) |
| `veo3.1` | Veo3.1 | video | $0.5 / run | [llms.txt](https://gptproto.com/model/google/veo3.1/llms.txt) |
| `veo3.1-pro` | Veo3.1 Pro | video | $2.5 / run | [llms.txt](https://gptproto.com/model/google/veo3.1-pro/llms.txt) |
| `veo3.1-fast` | Veo3.1 Fast | video | $0.5 / run | [llms.txt](https://gptproto.com/model/google/veo3.1-fast/llms.txt) |
| `gemini-2.5-flash-image` | Gemini 2.5 Flash Image | image | $0.0234 / run | [llms.txt](https://gptproto.com/model/google/gemini-2.5-flash-image/llms.txt) |
| `veo3-pro` | Veo3 Pro | video | $1.28 / run | [llms.txt](https://gptproto.com/model/google/veo3-pro/llms.txt) |
| `veo3-fast` | Veo3 Fast | video | $0.48 / run | [llms.txt](https://gptproto.com/model/google/veo3-fast/llms.txt) |
| `veo3` | Veo3 | video | $0.48 / run | [llms.txt](https://gptproto.com/model/google/veo3/llms.txt) |

## Additional resources

- [Provider page](https://gptproto.com/model/google)
- [All models](https://gptproto.com/model)
- [API keys](https://gptproto.com/dashboard/api-key)
- [Platform overview for LLMs](https://gptproto.com/llm-full.txt)
- Per-model guide: `https://gptproto.com/model/{vendor}/{model}/llms.txt`