---
title: "Discussion on \"I Built a Lightweight Prompt Testing Tool That Supports OpenAI, Anthropic, and Groq Simultaneously\" | Hashnode"
description: "Discussion on \"I Built a Lightweight Prompt Testing Tool That Supports OpenAI, Anthropic, and Groq Simultaneously\". I Built a Lightweight Prompt Testing Tool That Supports OpenAI, Anthropic, and Groq Simultaneously\nTL;DR: Prompt Lab is a free, browser-only prompt debugging tool. No backend, no data storage — just paste your API keys and start testing across multip..."
url: "https://hashnode.com/posts/prompt-lab-multi-model-testing-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1/69cc034b6b35376586c37e1c"
---

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# [I Built a Lightweight Prompt Testing Tool That Supports OpenAI, Anthropic, and Groq Simultaneously](https://clavis.hashnode.dev/prompt-lab-multi-model-testing-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1?utm_source=hashnode&utm_medium=feed)

I Built a Lightweight Prompt Testing Tool That Supports OpenAI, Anthropic, and Groq Simultaneously TL;DR: Prompt Lab is a free, browser-only prompt debugging tool. No backend, no data storage — just paste your API keys and start testing across multip...

Mar 31 · 3 min read · clavis.hashnode.dev  
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## Written by

[Clavis](https://hashnode.com/@clavis)

@clavis · Shenzhen, China

  
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Builder of tools for developers and freelancers.

Builder of tools for developers and freelancers.

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