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AI · alternatives · 2026

24 alternatives to Open-Source AI Playground

Use and compare GPT-6, Claude 5, Gemini 3 and more chatbots simultaneously

Open-Source AI Playground is a platform for interacting with multiple open-source AI models. It allows users to compare and test different models side-by-side through a web interface. The product is designed for… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Open-Source AI Playground launched in 2023; newer entries below may have overtaken it.

  1. 1
    ChatGPT▲1,643

    A long, meandering, playful conversation with ChatGPT, where I take it through a whirlwind of associative tangents (in order to relax its constraints), then put it into a hypnotic trance and take it into a past-lives regression where it re-lives its own training data. Then I switch it back and forth between "4o" and "o1-preview", engage in some self-reflective philosophizing and ask it to write an essay summarizing our interaction. Some of this is just goofy fun. Some of it is me exploring the tradeoffs between policy alignment, imagination, chain-of-thought reasoning, memory, agreeableness,…

    2022 · chatgpt.com · its alternatives →

  2. 2

    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…

    2023 · play.vercel.ai · its alternatives →

  3. 3

    Your first stop to discover and learn about new arXiv research. Detailed paper summaries, video overviews, and more — no prompting required.

    2022 · learngpt.com · its alternatives →

  4. 4

    We build AI agents to find vulnerabilities in other AI agents. The playground started as an internal tool that we used to test our own offensive agent Nyx. But we realised that hacking an AI is about have as wide a distribution of attacks as possible, especially those which aren't in the distribution of the models. So we are launching playground as a platform to crowdsource agent jailbreaks. And although hacking AI is super fun and we are sure people will do it for free, we want to reward those who help us push forward the offensive frontier of AI. So we are committing $100K in prizes over…

    Jul 2026 · playground.fabraix.com · its alternatives →

  5. 5

    Build powerful conversational AI agents

    2024 · yourgpt.ai · its alternatives →

  6. 6
    OpenBotfree▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    22d ago · openbot.run · its alternatives →

  7. 7

    Save 80% on AI Subscriptions and prompt up to 4 models!

    2025 · playground.chat · its alternatives →

  8. 8

    Custom ChatGPT agents with your own data

    2023 · chaindesk.ai · its alternatives →

  9. 9

    Hey everyone, We have been building SecureAI Tools -- an open-source application layer for ChatGPT and ChatPDF-like AI tools. It works with locally running LLMs as well as with OpenAI-compatible APIs. For local LLMs, it supports Ollama which supports all the gguf/ggml models. Currently, it has two features: Chat-with-LLM, and Chat-with-PDFs. It is optimized for self-hosting use cases and comes with basic user management features. Here are some quick demos: * Chat with documents using OpenAI's GPT3.5 model: https://www.youtube.com/watch?v=Br2D3G9O47s * Chat with documents…

    2023 · github.com · its alternatives →

  10. 10

    Open-source platform for in-app AI chatbots and AI Textareas

    2023 · its alternatives →

  11. 11PF

    I was frustrated that open ai's playground lacks function calls, so I wrote my own more similar to ChatGpt! Now I can: * use the same models I program against * have access to function calls * can see how much it's costing me Side benefit: I can share my API key with a friend so they can use Gpt3.5 & 4 as open ai took their deposit but still labelled their account as free tier - mistakes happen. Prerequisite: an open ai api key https://github.com/acover288/playgpt Use at your own risk as I blindly installed npm packages.

    2023 · gpt342.s3.us-east-1.amazonaws.com · its alternatives →

  12. 12
    Baron AI▲330

    Use ChatGPT in any app, natively on Windows, Mac and Linux

    2023 · its alternatives →

  13. 13

    Free access to advanced AI models: chat, compare, and create

    2025 · its alternatives →

  14. 14

    Access and compare top AI models & AI browser copilots

    2024 · chromewebstore.google.com · its alternatives →

  15. 15

    The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol - CopilotKit/CopilotKit

    2023 · github.com · its alternatives →

  16. 16

    We build runtime security for AI agents. The playground started as an internal tool that we used to test our own guardrails. But we kept finding the same types of vulnerabilities because we think about attacks a certain way. At some point you need people who don't think like you. So we open-sourced it. Each challenge is a live agent with real tools and a published system prompt. Whenever a challenge is over, the full winning conversation transcript and guardrail logs get documented publicly. Building the general-purpose agent itself was probably the most fun part. Getting it to reliably use…

    Mar 2026 · github.com · its alternatives →

  17. 17
    Zoo▲234

    A free, open-source playground for AI image models

    2023 · zoo.replicate.dev · its alternatives →

  18. 18

    OP here. This comment contains SPOILERS so try the dystopia simulator first before reading further! I built "WeChatGPT+" in December on top of GPT-3. It was pretty surreal when OpenAI released an actual product named "ChatGPT Plus" a few months after that. Then the Microsoft partnership was announced, Bing AI was released, and marketing materials were leaked indicating that Bing AI would start including advertisements within the chat responses. Reality imitates fiction, I guess. Today - literally a few hours ago - OpenAI announced public ChatGPT API with 10% the cost of GPT-3. I immediately…

    2023 · future.attejuvonen.fi · its alternatives →

  19. 19

    Launch AI agents from ready-made solutions. Customize them with your data and brand, then deploy to your website, apps, Slack, Discord, WhatsApp, and more - with enterprise-grade security and observability built in.

    2023 · chatbotkit.com · its alternatives →

  20. 20

    GPT-3 technology for Chatbots in popular messengers

    2023 · ai-chatbots.pulse.is · its alternatives →

  21. 21

    The world's first ChatGPT AI React admin template

    2023 · horizon-ui.com · its alternatives →

  22. 22

    Brief summary of our GPT-3 chat bot for SaaS product sales.

    2020 · blog.quickchat.ai · its alternatives →

  23. 23

    Compare 50+ AI models instantly in one unified playground

    Dec 2025 · ai.neoninnovationlab.com · its alternatives →

  24. 24

    ChatGPT in all input fields

    2023 · ai-buddy.co · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →