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

# Additional Models and Generated Files

> Protocol support for additional chat models and file handling for audio and 3D workflows

## Chat model protocol support

Use `https://api.vidgo.ai` and send your API key as `Authorization: Bearer VIDGO_API_KEY`. Claude clients may also use `x-api-key`; Gemini clients may use `x-goog-api-key`.

Select the protocol supported by your model:

| Model                         | Chat Completions | Responses | Claude Messages | Gemini native |
| ----------------------------- | :--------------: | :-------: | :-------------: | :-----------: |
| `openai/gpt-6-astra`          |        Yes       |    Yes    |        —        |       —       |
| `anthropic/claude-fable-5.1`  |        Yes       |     —     |       Yes       |       —       |
| `xai/grok-4.6`                |        Yes       |    Yes    |        —        |       —       |
| `google/gemini-3.7-flash`     |        Yes       |     —     |        —        |      Yes      |
| `google/gemini-3.5-flash`     |        Yes       |     —     |        —        |      Yes      |
| `anthropic/claude-opus-4.8`   |        Yes       |     —     |       Yes       |       —       |
| `openai/gpt-5.5`              |        Yes       |    Yes    |        —        |       —       |
| `openai/gpt-5.4`              |        Yes       |    Yes    |        —        |       —       |
| `openai/gpt-5.2`              |        Yes       |    Yes    |        —        |       —       |
| `anthropic/claude-sonnet-4.6` |        Yes       |     —     |       Yes       |       —       |
| `anthropic/claude-opus-4.6`   |        Yes       |     —     |       Yes       |       —       |

Both normal JSON responses and SSE streaming are supported. Use the exact model ID from the table with the request format for the corresponding endpoint:

* [Chat Completions](/api-manual/chat-series/chat-completions): `POST /v1/chat/completions`
* [Responses](/api-manual/chat-series/responses): `POST /v1/responses`
* [Claude Messages](/api-manual/chat-series/claude-messages): `POST /v1/messages`
* [Gemini Native Format](/api-manual/chat-series/gemini-native-format): `POST /v1beta/models/{model}:generateContent`

### Example request

```bash theme={null}
curl https://api.vidgo.ai/v1/chat/completions \
  -H "Authorization: Bearer $VIDGO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-6-astra","messages":[{"role":"user","content":"Hello"}]}'
```

### Gemini model URLs

Use the complete public ID in the URL, including the provider slash. For example: `/v1beta/models/google/gemini-3.7-flash:generateContent`. Streaming uses `:streamGenerateContent?alt=sse`.

## Audio and 3D generated files

Audio and 3D workflows return a `task_id` through the unified submit API. Retrieve the completed results with [Query Task Status](/api-manual/task-management/status) or [Webhook Callbacks](/api-manual/task-management/webhooks).

Process every item in the returned `files` array. Depending on the workflow, results can include audio, model assets, previews, textures, animation files, lyrics, and timestamp files.

| Field          | Type    | Description                                                           |
| -------------- | ------- | --------------------------------------------------------------------- |
| `file_url`     | string  | URL of the returned file.                                             |
| `file_type`    | string  | File category: `image`, `video`, `audio`, `lyrics`, `3d`, or `other`. |
| `label`        | string  | Optional label identifying the file.                                  |
| `format`       | string  | Optional file format.                                                 |
| `content_type` | string  | Optional content type.                                                |
| `file_name`    | string  | Optional file name.                                                   |
| `file_size`    | integer | Optional file size in bytes.                                          |
| `metadata`     | object  | Optional file metadata.                                               |

Metadata fields are optional. Retain them when present, and do not assume that all files have the same type or that the first file is the only result.