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Products that do what ThatLLM does

Compare AI models side by side in real-time

  1. 1

    Compare AI models side-by-side

    2024

  2. 2

    Compare AI models side-by-side on same prompt

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  3. 3

    Use multiple LLMs at once, privately!

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  4. 4
    LLM Stats308

    Compare API models by benchmarks, cost & capabilities

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  5. 5

    Use ChatGPT, Claude, and Gemini Side-By-Side

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  6. 6

    Compare LLMs on your data, measure, and pick the best.

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  7. 7

    Smartest way to use AI!

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  8. 8

    Same prompt. Different brains.

    Aug 2026 · versusllm.com

  9. 9
    Aymo AI170

    All-in-one AI Platform for Teams

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  10. 10IM

    This is another one of my automate-my-life projects - I'm constantly asking the same question to different AIs since there's always the hope of getting a better answer somewhere else. Maybe ChatGPT's answer is too short, so I ask Perplexity. But I realize that's hallucinated, so I try Gemini. That answer sounds right, but I cross-reference with Claude just to make sure. This doesn't really apply to math/coding (where o1 or Gemini can probably one-shot an excellent response), but more to online search, where information is more fluid and there's no "right" search engine + text…

    2024 · ithy.com

  11. 11CW

    Hello HN! I was fed up switching between multiple UIs to ask GPT, Claude, etc… the same question and comparing the answers. So I built a way to ask multiple models the same question efficiently by having the LLM compare the responses and only show you new and valuable information from the 2nd model. This way you still get a fast response as normal from the 1st model, but also get any added value provided by the 2nd model. Initially I built my own UI to use this, but stumbled upon Open WebUI (formerly Ollama WebUI) which is fantastic, but is made more for local access to LLMs. So I talked to…

    2025 · polychat.co

  12. 12

    Try multiple AI models across one prompts with live preview.

    Dec 2025

  13. 13LP
  14. 14

    The ultimate LLM comparison tool

    Jan 2026

  15. 15

    Multiple models respond simultaneously, pick your answer

    Jan 2026

  16. 16VI

    Most inference UIs that I've come across pretty much just give us a chat-like interface to toy around with models in a single visual conversation thread. Given the fact that we are limited to seeing only one output at a time, it's kind of hard to compare outputs from different models, adjustments made to the prompting, and sampler settings. But even when keeping the generation parameters the same (e.g., to test for reliability in the output) and just going for multiple passes, there is no easy way to have a side-by-side comparison to keep track of the outputs from the multiple "rounds". I…

    2024 · github.com

  17. 17

    Multiple AI models debating & brainstorming together 🤩

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  18. 18

    Compare Claude, GPT, and Grok side by side in real time

    Apr 2026 · apps.apple.com

  19. 19
    Rival4

    Compare AI models vibes

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  20. 20

    Compare AIs in an instant

    Feb 2026 · one-prompt.app

  21. 21FT

    Hey HN! When implementing an AI-powered feature for a project, we—and many people we've talked to—often reach a point where we have to choose an AI model but aren’t sure which one best fits our constraints or where to even start. Unfortunately, the advice to "just use chatgpt" is not always a good one. What if I want an open-source model? What languages does it support? What about context window size or the number of parameters? There are thousands of AI models already out there and many of them are perfect for certain problems. That’s why we’ve carved out this part of our product as a free…

    2024 · app.elementera.ca

  22. 22

    Ask once. Compare multiple AI models. Get one synthesis.

    Jun 2026 · truth.agnthub.ai

  23. 23CV
  24. 24GV

    Hey HN, I just updated my project that compares some LLMs. It uses your prompt for all the models and runs at the same time. You can see the results being generated in real-time and decide what's the best for your use case. I'm open to any suggestions and feedback. Thanks!

    2024 · geminivsgpt.com

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