> ## 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.

# ChatGenerationParamsResponseFormatJSONObject - TypeScript SDK

> ChatGenerationParamsResponseFormatJSONObject method reference

<Warning>
  The TypeScript SDK and docs are currently in beta.
  Report issues on [GitHub](https://github.com/OpenRouterTeam/typescript-sdk/issues).
</Warning>

## Example Usage

```typescript lines theme={null}
import { ChatGenerationParamsResponseFormatJSONObject } from "@openrouter/sdk/models";

let value: ChatGenerationParamsResponseFormatJSONObject = {
  type: "json_object",
};
```

## Fields

| Field  | Type             | Required             | Description |
| ------ | ---------------- | -------------------- | ----------- |
| `type` | *"json\_object"* | :heavy\_check\_mark: | N/A         |