LLM Playground, compare results side by side

In plain words

LLM Playground is an AI tool that lets users compare results from different language models side by side. Launched in April 2023, it's built by Retool and designed for anyone wanting to test and evaluate how different LLMs perform on the same prompts. The side-by-side comparison format makes it easy to see differences in output quality, speed, and style across models.

written from the facts on this page · September 2026

From the sources

Discover and compare results from various Large Language Models simultaneously. Large Language Models (LLM) are massive neural networks that can generate human like text — from poetry and prose to programming. They are an artificial intelligence model designed to understand, generate, and manipulate human language. These models are typically based on deep learning techniques and trained on massive amounts of textual data to capture the nuances and complexity of human language. Large Language Models can perform various tasks like language translation, summarization, question-answering, text generation, and more. In fact, this copy was written in part by GPT-4 One of the most well-known LLMs…from retool.com

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  AI Playground by Vercel Labs2023 · play.vercel.ai · ▲249

  Hey, Jared Palmer (creator of this playground) here. Really excited to ship this. I’ve been building this over the past few weeks to compare LLMs from different providers like OpenAI, Anthropic, Cohere, etc. At Vercel, I manage our Frameworks division (including Next.js, Svelte, and Turbo) and wanted to also dogfood some of the latest features in a slightly larger application. This playground takes a lot of inspiration from https://nat.dev and is built on Tailwind, ui.shadcn.com, and some upcoming Vercel products we’re announcing soon. We’re going to continue adding models to…

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  LLM StatsOct 2025 · llm-stats.com · ▲293

  I was overspending on GPT-4o. It was really hard to compare different models I could switch to, so I built this LLM comparison tool. It shows leaderboards, pricing, and performance data across 100+ LLMs (including all major providers and open-source models). Key features: - Live pricing comparisons - Benchmark Scores (MMLU, HumanEval, GPQA, etc.) - Context length vs cost analysis - Speed/throughput tests across providers - Quality vs price visualizations - Open source (all data verifiable) Try it out: https://llmstats.com I'd like to know your opinion :) Tech stack: Next.js,…

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  LLM Prompt & Model Playground2024 · ▲89

  Test LLM prompts & models side-by-side against many inputs

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  LLM Lab — Compare AI models side-by-sideNov 2025 · llm-lab-three.vercel.app · ▲7

  Compare LLM outputs (GPT-4, Claude...) in simple playground.

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  Countless.dev – A website to compare every AI model: LLMs, TTSs, STTs2024 · countless.dev · ▲361

  Compare AI models easily! All providers in one place. Find the best LLM for your needs with our comprehensive pricing calculator and feature comparison tool. OpenAI, Anthropic, Google, and more.

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  LLM Explorer2023 · ▲152

  Find your best LLM for a local inference

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• G4
  GPT-4-powered web searches for developers▲1,401

  Hi HN, Today we’re launching GPT-4 answers on Phind.com, a developer-focused search engine that uses generative AI to browse the web and answer technical questions, complete with code examples and detailed explanations. Unlike vanilla GPT-4, Phind feeds in relevant websites and technical documentation, reducing the model’s hallucination and keeping it up-to-date. To use it, simply enable the “Expert” toggle before doing a search. GPT-4 is making a night-and-day difference in terms of answer quality. For a question like “How can I RLHF a LLaMa model”, Phind in Expert mode delivers a…

  AI · 2023 · phind.com

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  Open-source alternative to Stripe Billing and Chargebee

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  Chatscout▲691

  Shopping assistant powered by ChatGPT for e-commerce brands

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  Make notes, tasks, and search, directly from the terminal.

  AI · 2023 · fabric.so

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  Rask AI▲683

  Say it in any language, AI based, sounds as good as a human

  AI · 2023 · rask.ai