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Products that do what PromptForge does

Update AI prompts without redeploying your app

  1. 1WW

    I spent a few hours last weekend testing whether AI can replace code by executing directly. Built a contact manager where every HTTP request goes to an LLM with three tools: database (SQLite), webResponse (HTML/JSON/JS), and updateMemory (feedback). No routes, no controllers, no business logic. The AI designs schemas on first request, generates UIs from paths alone, and evolves based on natural language feedback. It works—forms submit, data persists, APIs return JSON—but it's catastrophically slow (30-60s per request), absurdly expensive ($0.05/request), and has zero UI…

    Nov 2025 · github.com

  2. 2

    The ultimate prompt engineering workbench

    2025

  3. 3
    Latitude685

    The open-source prompt engineering platform

    2024 · latitude.so

  4. 4PE

    Nowadays, a common AI tech stack has hundreds of different prompts running across different LLMs. Three key problems: - Choices, picking from 100s of LLMs the best LLM for that 1 prompt is gonna be challenging, you're probably not picking the most optimized LLM for a prompt you wrote. - Scaling/Upgrading, similar to choices but you want to keep consistency of your output even when models depreciate or configurations change. - Prompt management is scary, if something works, you'll never want to touch it but you should be able to without fear of everything breaking. So we launched Prompt…

    2024 · jigsawstack.com

  5. 5

    Ship prompt changes without touching your codebase

    Jun 2026 · promptvlt.com

  6. 6

    Generate the perfect prompt for GPT4 & open source models

    2024

  7. 7PP

    We are excited to show Promptly (https://trypromptly.com), a prompt management platform for LLM apps that makes it easy to experiment, share and manage prompts in production. With Promptly, users can: - Try out different prompts and model parameters for various providers - Quickly share prompt snippets together with parameters and generated output. Think of it as CodePen or JSFiddle for prompts - Create high level endpoints on top of provider APIs (Open AI, DreamStudio etc) with templated and versioned prompts - Use built-in caching for endpoints that will help save on Open AI…

    2023 · trypromptly.com

  8. 8

    The context manager and skills library for marketing teams

    Apr 2026 · promptr.ai

  9. 9RA

    Hi HN, we are the founders of Relari (https://www.relari.ai). We launched our LLM evaluation stack on HN a few months ago (https://news.ycombinator.com/item?id=39641105), which is now used in production by AI teams at companies like Vanta and PwC. We have since expanded to directly optimizing parts of an LLM pipeline using a data-driven approach. In particular, we see a lot of potential in the Auto Prompt Optimization—which could be an attractive alternative to fine-tuning in many cases—to use data to align LLMs for domain-specific tasks. Here’s a demo video:…

    2024

  10. 10

    14 AI tools, your own API key, zero subscription

    Jun 2026 · promptforge-navy-psi.vercel.app

  11. 11PA

    Even if you're not a Prompt whiz, you can still get top-notch results just like the pros. This Product will handle internally handle boring And Cognitively demanding prompt Engineering. Just pick a service, fill in the keywords, and get the desired result! Open Source , Free , Privacy Friendly , Crowd Source Prompts, No Login Required. You can submit Features(https://prompt-apps.canny.io/feature-requests?sort=top) and Prompts (https://prompt-apps.canny.io/prompt-conversion?sort=top)

    2023 · chatgpt-prompt-apps.com

  12. 12

    Version, Evaluate & Publish your Prompt without any PR cycle

    Apr 2026 · promptot.com

  13. 13HP

    Hi HN. I heard you like dev tools and AI, so we wanted to share our project that we’ve been working on. We’re working on Horizon [1] - a higher level abstraction for LLMs so that developers can spend less time trying to grapple with LLMs to make them work and more time with users. This is the starting feature set which takes an auto-ML approach to identify the optimal LLM model, hyperparameters, and prompt - instead of just giving you the tooling to figure it out yourself. You can read more about it in our documentations. Our view is that as LLMs become increasingly commoditized and prompts…

    2023 · gethorizon.ai

  14. 14

    Turn raw ideas into perfectly optimized AI prompts.

    May 2026 · aipromptforg.netlify.app

  15. 15

    Prompts that actually work

    12d ago · vercel.com

  16. 16

    Your AI prompts, structured and served via REST API

    Jun 2026 · promptary.dev

  17. 17

    Version, test, and collaborate on LLM prompts— like code

    2025

  18. 18

    Find which AI wins for YOUR prompts. Test 100+ models free.

    Dec 2025

  19. 19

    "Turn any idea, in any language,into an optimized AI prompt"

    Aug 2026 · language-to-prompt-pro.lovable.app

  20. 20RA

    Hey everyone! Along with my team, I've developed a reinforcement learning system that automatically optimizes LLM prompts, complete with a visualization feature to track both prompt structure and learning progress over time. Take a look here: https://nomadic-ml.github.io/nomadic/cookbooks/Nomadic_Promp... Check out our website too:https://www.nomadicml.com/ In terms of how this visualization works: The RL Prompt Optimizer employs a reinforcement learning framework to iteratively improve prompts used for language model evaluations. At each episode, the…

    2024 · nomadic-ml.github.io

  21. 21LP
  22. 22

    Turn simple prompts into powerful AI instructions

    Mar 2026

  23. 23

    An AI Cost Optimization Infrastructure for LLM Applications

    Mar 2026

  24. 24PA

    Hey HN! We just launched PromptL: a templating language built to simplify writing complex prompts for LLMs like GPT-4 and Claude. Why PromptL? Creating dynamic prompts for LLMs can get tricky, even with standardized APIs that use lists of messages and settings. While these formats are consistent, building complex interactions with custom logic or branching paths can quickly become repetitive and hard to manage as prompts grow. PromptL steps in to make this simple. It allows you to define and manage LLM conversations in a readable, single-file format, with support for control flow and…

    2024 · promptl.ai

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