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AI · alternatives · 2026

24 alternatives to Onit – Source-available ChatGPT Desktop with local mode, Claude, Gemini

Hey Hackernews- it’s Tim Lenardo and I’m launching v1 of Onit today! Onit is ChatGPT Desktop, but with local mode and support for other model providers (Anthropic, GoogleAI, etc). It's also like Cursor Chat, but everywhere on your computer - not just in your IDE! Onit is open-source! You can download a pre-built version from our website: www.getonit.ai Or build directly from the source code: https://github.com/synth-inc/onit We built this because we believe: Universal Access: AI assistants should be accessible from anywhere on my computer, not just in the browser or in…

Onit is a desktop application that brings AI chat capabilities to any part of a user's computer, supporting multiple model providers including ChatGPT, Claude, and Gemini. It offers a local mode for processing data… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Chat with AI using your API keys. Pay only for what you use. ChatGPT, Gemini, Claude, and other LLMs supported. The best chat LLM frontend UI for all AI models.

    2023 · typingmind.com · its alternatives →

  2. 2

    Always on agents built to handle everything

    24d ago · chatgpt.com · its alternatives →

  3. 3

    AI Toolbox (formerly ChatGPT Toolbox): folders, search, bulk export, and prompt chaining for ChatGPT, Claude, Gemini, and Grok. 40,000+ users. Start free.

    Jul 2026 · ai-toolbox.co · its alternatives →

  4. 4IB

    Hi HN, I built this out of frustration of the evergrowing list of AI models and features to try and to fit my workflow. The visual approach clicks for me so i went with it, it provides more freedom and control of the outcome, because predictable results and increased productivity is what I’m after when using conversational AI. The app is packed with features, my most used are prompt library, voice input and text search, narration is useful too. The app is local-first and works right in the browser, no sign up needed and it's absolutely free to try. BYOAK – bring your own API Keys. Let me…

    2024 · grafychat.com · its alternatives →

  5. 5
    Jan▲329

    Open-source ChatGPT alternative that runs 100% offline

    2024 · jan.ai · its alternatives →

  6. 6

    Open AI announced ChatGPT Plugins to access real-world data

    2023 · openai.com · its alternatives →

  7. 7

    OpenAI’s latest advancements at your fingertips

    2023 · play.google.com · its alternatives →

  8. 8

    Access OpenAI's ChatGPT anywhere on the web

    2022 · chromewebstore.google.com · its alternatives →

  9. 9

    AI copilot for all apps, use ChatGPT without copy-pasting

    2023 · ai-anywhere.com · its alternatives →

  10. 10

    Discover, collect, and share the best AI prompts for ChatGPT, Claude, Gemini, and more. Join the largest community of AI prompt engineers and creators.

    Dec 2025 · prompts.chat · its alternatives →

  11. 11

    ChatGPT in all input fields

    2023 · ai-buddy.co · its alternatives →

  12. 12IB

    I'm lost between ChatGPT vs Claude vs Gemini... which subscriptions to take? With Cursor and all these specific AI tools, I just wanted one simple chat app where I can use any model and pay only when I use it. Couldn't find one, so I built one. Pay only for what you use. Your prompts and docs, knowledge bases work with every model - no more copy-pasting between apps. Started as a personal project, but thought someone else might benefit from this too. https://prismharmony.com/chat What do you think?

    2025 · prismharmony.com · its alternatives →

  13. 13

    Have you ever found yourself toggling between different language models, trying to figure out which one gives the best answers to your complex questions? Trust me, I've been there.

    2024 · franz101.substack.com · its alternatives →

  14. 14

    No-code AI agents & #1 chat UI for GPT, Gemini, Claude+

    2024 · aiassistify.io · its alternatives →

  15. 15

    Free master prompts for ChatGPT, Claude, Gemini & more

    Mar 2026 · understandingai.net · its alternatives →

  16. 16

    I built PolyGPT to solve a problem I had: constantly tab-switching between ChatGPT, Claude, and Gemini to compare their responses. It's a desktop app (Mac/Windows/Linux) that lets you type a prompt once and see all three AI models respond simultaneously in a split view. Useful for: - Comparing technical explanations - Getting multiple perspectives on code problems - Fact-checking answers across models The app is free, open source, and runs locally - your credentials stay on your machine. Download: https://polygpt.app Source:…

    Nov 2025 · polygpt.app · its alternatives →

  17. 17

    Access AI models instantly from anywhere on your Mac. Select text, press a shortcut, and get AI-powered help without switching apps.

    2023 · atua.app · its alternatives →

  18. 18

    Back up your ChatGPT, Claude, and Gemini chats locally

    2025 · whatpulse.org · its alternatives →

  19. 19
    Readit▲14

    Readit keeps AI instructions, Markdown, and live references in one living brief that every teammate or model can reuse.

    2025 · readit.md · its alternatives →

  20. 20

    Free ChatGPT, Claude, Perplexity Sidebar - Chrome Web Store

    2025 · chromewebstore.google.com · its alternatives →

  21. 21

    I kept pasting the same question across several AI platforms to make sure I got the best answer. I found this process time-consuming, and difficult to compare the answers between platforms. So I built ChatHawk. It's a tool that lets you ask a question and have it answered by all the flagship AI models at once. These models are currently Gemini 2.5 pro, GPT-5, Grok-4 and Claude: Sonnet 4. ChatHawk also uses AI to get the best parts from each response to provide a 'Best of All Models' answer. I've found it useful for these use cases: 1. When you want to make sure the answer is right. E.g. for…

    Oct 2025 · chathawk.co · its alternatives →

  22. 22

    All top AI models in one place — GPT, Claude, Gemini, Grok

    Mar 2026 · chatgoat.ai · its alternatives →

  23. 23OS

    https://github.com/KTruong008/aichatbestie Been working on this since last week and glad to share it here and now! There's already been a few other takes on this idea, but I figured none would fit me as well as if I had just built it myself. All messages are sent and stored locally in the browser for privacy and speed. Accounts are optional and upgrading is a one-time deal. Any questions, comments, feedback, please, I'd like to hear it all!

    2023 · aichatbestie.com · its alternatives →

  24. 24

    Hi HN, we're Sean, Alec, and swyx, and we've been hacking on this side project that harmonizes all the major AI chat apps (Closed LLMs, Open Source Hosted LLMs, and Local/GGML ones too) and lets you invoke them in one keyboard shortcut. I originally made this as a smol menubar app that could quickly access ChatGPT from wherever I was on desktop. This necessitated writing an Electron app, rather than a Chrome extension. I also didn't have access to the GPT-4 API at the time, so I preferred to use GPT-4 via the full webapp. Then Bing came out strong, and Bard, and Claude, and Llama, and…

    2023 · github.com · 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 →