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AI · alternatives · 2026

RT

24 alternatives to Retune – the missing frontend for GPT-3

Hey everyone! We launched re:tune today to help builders build complex apps on top of GPT-3. With re:tune, you can do things like: - turn any prompt into a chatbot - get API to integrate into your app - create custom fine-tuned models from your (large) dataset - modify your data and tweak parameters to get personalized output. - write a prompt once, and generate variable responses with our variables editor. You can think of this as a supercharged frontend for GPT-3, along with newer langchain techniques. As next step, we are building out features to publish and monetize your LLM apps, feed…

Retune is a frontend for GPT-3 that enables developers to build complex applications without extensive coding. It allows users to convert prompts into chatbots, generate APIs for app integration, create fine-tuned… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Retune – the missing frontend for GPT-3 launched in 2023; newer entries below may have overtaken it.

  1. 1
    re:tune▲471

    The missing frontend for GPT-3

    2023 · retune.so · its alternatives →

  2. 2

    I've been playing around with https://github.com/zphang/minimal-llama/ and https://github.com/tloen/alpaca-lora/blob/main/finetune.py, and wanted to create a simple UI where you can just paste text, tweak the parameters, and finetune the model quickly using a modern GPU. To prepare the data, simply separate your text with two blank lines. There's an inference tab, so you can test how the tuned model behaves. This is my first foray into the world of LLM finetuning, Python, Torch, Transformers, LoRA, PEFT, and Gradio. Enjoy!

    2023 · github.com · its alternatives →

  3. 3
    Hypertune▲260

    Hey HN! I'm Miraan, the founder at Hypertune, and I'm excited to be posting this on HN. Hypertune lets you make your code configurable to let teammates like PMs and marketers quickly change feature flags, in-app copy, pricing plans, etc. It's like a CMS but instead of only letting you set static content, you can insert arbitrary logic from the UI, including A/B tests and ML "loops". I previously built a landing page optimization tool that let marketers define variants of their headline, CTA, cover image, etc, then used a genetic algorithm to find the best combination of them. They used…

    2025 · hypertune.com · its alternatives →

  4. 4

    Transform any generated texts into audio right in ChatGPT

    2023 · its alternatives →

  5. 5

    Generate amazing videos directly in ChatGPT

    2023 · its alternatives →

  6. 6

    Today we are launching YourGPT 2.0, an update focused on making support, sales, and operational workflows work together more smoothly in one system. This release improves how workflows are built, how the platform connects to external tools, and how context is maintained across long, multi-channel interactions. AI Studio now makes it much easier to create and refine workflows. You can describe the process you want in natural language and the system generates the full workflow for you. It can also help debug issues by showing what happened at each step and explaining where things went off…

    Nov 2025 · yourgpt.ai · its alternatives →

  7. 7

    Any Ideas/Suggestions are welcome :)

    2024 · mitenmit.github.io · its alternatives →

  8. 8

    Create custom GPT-3 AI models in minutes, with No Code

    2022 · its alternatives →

  9. 9

    Hello HN, We built Promptrepo to make finetuning accessible to product teams — not just ML engineers. Last week, OpenAI’s CPO shared how they use fine-tuning for everything from customer support to deep research, and called it the future for serious AI teams. Yet most teams I know still rely on prompting, because fine-tuning is too technical, while the people who have the training data (product managers and domain experts) are often non-technical. With Promptrepo, they can now: - Add training examples in Google Sheets - Click a button to train - Deploy and test instantly - Use OpenAI,…

    2025 · promptrepo.com · its alternatives →

  10. 10RG

    Hi HN, I built https://rebrain.gg. It's a website which is intended to help you learn new things. I built it for two reasons: 1. To play around with different ways of interacting with a LLM. Instead of a standard chat conversation, the LLM returns question forms the user can directly interact with (and use to continue the conversation with the LLM). 2. Because I thought it would be cool to have a site dedicated to interactive educational content instead of purely consuming content (which I do too much). An example of a (useful-for-me) interactive conversation is:…

    Feb 2026 · its alternatives →

  11. 11

    Hey Hacker News! Launching gptengineer.app into beta today. It's like Claude Artifacts, but: - you can edit the code in your fav IDE (two-way github sync) - installs npm packages - automatically picks up build and runtime errors and fixes them - very fast, built with rust The full stack capabilities are built on supabase (prefer to not have to handle auth + user data at this point so this is owned by the user) The seed for this project was an open source experiment, posted about that previously here: https://news.ycombinator.com/item?id=36422730 Would love feedback if you give…

    2024 · gptengineer.app · its alternatives →

  12. 12

    Create datasets to fine-tune gpt in under 5min

    2024 · prompteasy.ai · its alternatives →

  13. 13

    Built a tool for transforming unstructured data into structured outputs using language models (with 100% adherence). If you're facing problems getting GPT to adhere to a schema (JSON, XML, etc.) or regex, need to bulk process some unstructured data, or generate synthetic data, check it out. We run our own tuned model (you can self-host if you want), so, we're able to have incredibly fine grained control over text generation. Repository: https://github.com/automorphic-ai/trex Playground: https://automorphic.ai/playground

    2023 · automorphic.ai · its alternatives →

  14. 14
    FineTuner▲164

    NEW88 là nền tảng giải trí trực tuyến uy tín hàng đầu Châu Á với đa dạng sản phẩm, ưu đãi khủng và trải nghiệm an toàn bảo mật trên mọi thiết bị.

    2025 · nowhiteboards.io · its alternatives →

  15. 15

    Using threaded emscripten to speed up the generation and offload the main loop. No SIMD or other optimizations. Might work faster with #enable-experimental-webassembly-features enabled. Tested in x86 Chrome and Firefox, Apple Silicon Safari Run it yourself: https://github.com/lxe/ggml/tree/wasm-demo Thanks, https://github.com/ggerganov/ggml,

    2023 · lxe.co · its alternatives →

  16. 16

    Hey HN, We built Lucent Chat because creating with AI has become a mess. You'd ask ChatGPT for a prompt, copy it into another tool, tweak settings, open three tabs, run into token limits, and lose your style halfway through. Iteration was slow, context vanished, and the process killed the creative flow. Lucent Chat is our attempt to fix that - a single chat where you can generate, refine, and manage all your visuals and videos across Veo, Sora, Kling, Seedream, Nano Banana, and more. You describe what you want and Lucent handles the rest. It will find the right model, optimise your prompt +…

    Oct 2025 · uselucent.com · its alternatives →

  17. 17
    NocoAI▲97

    The only backend for your GPT application

    2023 · nocoai.io · its alternatives →

  18. 18

    Hi HN! I've found this visualization tool immensely helpful over the years for getting an intuition for how an LLM "sees" some piece of text, and with a bit of elbow grease decided to move all compute to client side so I could make it publicly available. I've found it particularly useful for - Understanding exactly how repetition and patterns affect a small LM's ability to predict correctly - Understanding different tokenization patterns and how it affects model output - Getting a general sense of how "hard" different prediction tasks are for GPT-style models Known problems (that I probably…

    2023 · perplexity.vercel.app · its alternatives →

  19. 19

    Convert your texts into high-quality videos using ChatGPT

    2023 · app.heygen.com · its alternatives →

  20. 20BA

    It works on top of the open-source workflow engine windmill [1] that you can easily self-host on a tiny server or a large k8s cluster. You will also need pgvector (here hosted on supabase) and of course a GPT4 api key. It showcases an approval step so that you only provide answers you are confident giving to your users, which feels less robotic. All the building blocks are scripts that you can reuse outside of windmill and you could build this in any other workflow engines (although less conveniently). We use it for our own needs on discord [2] and thoughts this was a common need for any…

    2023 · windmill.dev · its alternatives →

  21. 21
    DataLang▲132

    Chat with your databases

    2024 · datalang.io · its alternatives →

  22. 22CA

    Hey folks, we created a ChatGPT alternative for anyone to try out LLaMA models and benchmark responses across OpenAI's models and other open source models. Would love some feedback! No data is being used for retraining models.

    2023 · chat.nbox.ai · its alternatives →

  23. 23

    Hi HN community, I have been working on benchmarking publicly available LLMs these past couple of weeks. More precisely, I am interested on the finetuning piece since a lot of businesses are starting to entertain the idea of self-hosting LLMs trained on their proprietary data rather than relying on third party APIs. To this point, I am tracking the following 4 pillars of evaluation that businesses are typically look into: - Performance - Time to train an LLM - Cost to train an LLM - Inference (throughput / latency / cost per token) For each LLM, my aim is to benchmark them for…

    2023 · github.com · its alternatives →

  24. 24

    Simon(sfarshid) and I spend a lot of time on GitHub. As data nerds we put together a quick tool to explore your repository’s data. How it works: - Data Loading: We use dlt to pull data (issues, PRs, commits, stars) from GitHub - Semantic Layer: Relta wraps the underlying dataset into a semantic layer so the LLM doesn’t hallucinate. - Text-to-SQL: A text-to-SQL agent transforms your plain-English question into a query using the semantic layer - Generative Charts: assistant-ui dynamically generates a chart based on the SQL query - Refinements: If the semantic layer can’t handle your question,…

    2024 · github.com · its alternatives →

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