Auto Model Selection

The Auto Router is a special model ID that automatically chooses between selected high-quality models based on your prompt, powered by NotDiamond.

How to Use

Simply set your model to openrouter/auto and OpenRouter will intelligently select the best model for your specific prompt.

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import { OpenRouter } from '@openrouter/sdk';
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const openRouter = new OpenRouter({
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  apiKey: '<OPENROUTER_API_KEY>',
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});
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const completion = await openRouter.chat.send({
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  model: 'openrouter/auto',
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  messages: [
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    {
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      role: 'user',
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      content: 'What is the meaning of life?',
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    },
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  ],
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});
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console.log(completion.choices[0].message.content);

Response

The resulting generation will have model set to the model that was actually used for your request, allowing you to track which model was selected.