Automate evaluations with PromptHub

Go beyond vibes and the eye test. Systematically measure and refine your prompts using string-based metrics or an LLM-as-a-judge. Get actionable, data-driven insights that complement human feedback.

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"Batches is hugely helpful in seeing the impact of changes I make to my prompts. Not quite the right term, but batch testing gives me more confidence in the statistical significance of the changes I make when I can see the output generated many times. If you're not batch testing your prompts, you're probably missing out on some low-hanging fruit."
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Jade Samadi
Founder, Smart Recover

Tools to automatically optimize your prompts

How it works

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Configure your evaluation - use string based evaluators or LLM-as-a-Judge
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Enable your evaluations in the playground
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Review the results

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OpenAI
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Anthropic
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Azure
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Google
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Meta
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Bedrock
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Misrtal
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More
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OpenAI
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Anthropic
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Azure
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Microsoft logo
Google
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Meta
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Bedrock
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Misrtal
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More
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What you can build

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Scalable content creation

Embed content creation prompts in Notion

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Client support form

Connect documentation to a form so that clients can get quick answers

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Lead magnet

Create mini-apps that drive value for website visitors

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Connect custom data
(Gdocs, csv, Excel)
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Your prompts are secure
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Embed anywhere

Test at scale with datasets

Combining datasets and evaluations makes it easy to test your prompts across hundreds—or even thousands—of data points.

Each output is evaluated using a string rule or an LLM-as-a-judge.

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Retry user messages

Wouldn't it be helpful to restart the conversation from a specific message, rather than recreate a whole new conversation? Now you can!

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LLM-as-a-Judge

Leverage LLMs to judge your outputs and apply their intelligence at scale. Write your own evaluator prompt or find inspiration from other evaluator prompts in the PromptHub community.

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A modal for setting up an evaluation in PromptHub
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OpenAI
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Anthropic
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Microsoft logo
Azure
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Google
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Meta
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Bedrock
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Mistral
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More
Green check mark on light green background
OpenAI logo
OpenAI
green checkmark
Anthropic Logo
Anthropic
Green check mark on light green background
Microsoft logo
Azure
Green check mark on light green background
Google Icon
Google
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Meat Icon
Meta
Green check mark on light green background
AWS logo
Bedrock
Green check mark on light green background
Mistral logo
Mistral
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More
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Join thousands of AI builders

Collaborate with thousands of AI builders to discover, manage, and improve prompts—free to get started.