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

# Test multiple prompts at once

> Compare different prompts side-by-side in the prompt playground

A common development workflow is comparing multiple prompts side-by-side.

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    src="https://storage.googleapis.com/arize-phoenix-assets/assets/images/multiple-prompts.mp4"
    width="100%"
    height="100%"
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  backgroundColor: 'transparent'
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    controls
    autoPlay
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    loop
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The prompt playground lets you directly compare up to three prompts at once, making it easy to evaluate performance differences, spot improvements, and identify the most effective prompt. By providing a clear, side-by-side view, it accelerates iteration, reduces guesswork, and helps you confidently choose prompts that deliver better results.

To test prompts side-by-side, use the **+ button** on the right to add new prompt objects. You can have **up to 3 prompt objects** at a time.

Then, either fill in data manually, or load a dataset and run an experiment per prompt. For more information, see [Test prompts on datasets](/docs/ax/prompts/prompt-playground/save-playground-outputs-as-an-experiment).