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AI · alternatives · 2026

24 alternatives to Trellis

ChatGPT and GPT-3-powered textbook companion and tutor

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Trellis launched in 2023; newer entries below may have overtaken it.

  1. 1

    Hi HN, As a developer, I much prefer to write code than read other people’s code. But most projects I work on involve other developers so it’s hard to avoid. Often I find it really hard to quickly parse other people’s code so I thought maybe ChatGPT could help. ChatGPT does a really nice job of giving clear explanations when you paste in code and ask it to explain it. But the interface is a bit of a pain to use if you’re using it many times a day. It’s also hard to share explanations with co-workers. So I built whatdoesthiscodedo.com. Just paste your code and get your ChatGPT explanation and…

    2023 · whatdoesthiscodedo.com · its alternatives →

  2. 2

    Learn math and science with interactive visual explanations

    Mar 2026 · openai.com · its alternatives →

  3. 3

    A GPT-4 based tutor which provides feedback for programming

    2023 · its alternatives →

  4. 4

    A new way to learn with ChatGPT

    2025 · openai.com · its alternatives →

  5. 5

    Use ChatGPT to generate coding exercise with your story

    2023 · its alternatives →

  6. 6
    Code-GPT▲221

    Make sense of any code, anytime

    2023 · twitter.com · its alternatives →

  7. 7

    Configurable AI language tutor

    2023 · chattytutor.com · its alternatives →

  8. 8

    ChatGPT convert text prompts, video, PDF, web page to Slides

    2023 · livepolls.app · its alternatives →

  9. 9

    Stressed about homework? Let us finish it 10x faster

    2024 · play.google.com · its alternatives →

  10. 10

    Get instant math solutions by uploading an image

    2024 · chatgpt.com · its alternatives →

  11. 11

    Teach yourself anything, create boutique AI generated guides

    2023 · its alternatives →

  12. 12

    An ChatGPT integration for Jupyter Notebooks and the IPython Shell - santiagobasulto/ipython-gpt

    2023 · github.com · its alternatives →

  13. 13

    Immersive language learning app with GPT-driven AI Avatars

    2023 · praktika.ai · its alternatives →

  14. 14

    Generate text using the latest AI - ChatGPT

    2023 · generatext-ouyp.glideapp.io · its alternatives →

  15. 15

    Streamlined ChatGPT for coding

    2024 · its alternatives →

  16. 16

    Welcome to ClassPlanit, Your new lesson planning assistant!

    2021 · its alternatives →

  17. 17
    Strive▲118

    Gemini's inbuilt canvas could compile Latex and create a pdf. ChatGPT can now as well, with the launch of their Apps SDK. We made an app that compiles the Latex code written by ChatGPT and shows the PDF in the chat window. Users can then ask ChatGPT to make further edits, or download the PDF and share it. It's most commonly used by math teachers to make math worksheets I would love to see what other apps the community has made and submitted to OpenAI for approval!

    2021 · strivemath.com · its alternatives →

  18. 18

    ChatGPT for languages

    2023 · gliglish.com · its alternatives →

  19. 19

    GPT-powered full-stack learning hub

    2024 · studywithgpt.com · its alternatives →

  20. 20

    Best AI assistant for writing, translating and coding

    2023 · its alternatives →

  21. 21

    Codex-powered agents for teams.

    Apr 2026 · openai.com · its alternatives →

  22. 22DQ

    Hello fellow hackers, we made a site that gets GPT to answer your question using the info on a webpage you specify or document you upload (e.g., a large textbook .pdf file). Background: When ChatGPT came out, I had the idea of having it pull answers from my stereo receiver's annoyingly dense 32 page manual. My weekend project prototype proceeded to surprise with great answers—just like what we've all experienced by now. My co-founder thought we should productize it, and make it easy to use online. So here we are with a very early beta! (Try it on a HN thread...)

    2023 · klavier.ai · its alternatives →

  23. 23
    Gprompt▲75

    Save time with prompt automation

    2024 · robzapps.com · its alternatives →

  24. 24

    Become ChatGPT master and let it code for you

    2023 · icons8.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 →