> ## 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.

# SourceEnum

The source filter applied, or null when all sources are returned.

## Example Usage

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

let value: SourceEnum = "artificial-analysis";

// Open enum: unrecognized values are captured as Unrecognized<string>
```

## Values

```typescript theme={null}
"artificial-analysis" | "design-arena" | "openrouter" | Unrecognized<string>
```