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Alternatives

Products that do what Agent Prompt Optimizer by Kayba does

Auto-optimize agent prompts from real failures.

  1. 1

    Helps you write better prompts

    2022

  2. 2

    Build, test & deploy AI prompts across 1600+ models at scale

    2025

  3. 3RA

    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

  4. 4

    Simplifying your path to AI interaction

    2024

  5. 5PE

    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

  6. 6

    Your personal prompt engineer across all AI platforms

    2025

  7. 7AP

    2023 · promptperfect.jina.ai

  8. 8

    Build & run AI agents on free premium LLMs

    2025

  9. 9

    The command center for your AI prompts.

    Oct 2025

  10. 10

    AI Prompt Generator, Optimizer & Library

    2025

  11. 11

    Stop guessing, start optimising

    Feb 2026 · promptoptimizr.com

  12. 12

    Build production-grade AI agents using natural language

    Oct 2025

  13. 13
    BU138

    Openclaw in the cloud

    Mar 2026 · cloud.browser-use.com

  14. 14
    Promptaa118

    AI enhance and organize prompts. Big ideas in little time.

    2025

  15. 15CY

    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

  16. 16RA

    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

  17. 17

    100% free prompt optimizer

    Sep 2025

  18. 18

    Professional prompt engineering without the learning curve!

    Nov 2025 · getpromptoptimizer.com

  19. 19

    MCP-native prompt management for agentic apps

    Jan 2026 · promptman.dev

  20. 20AT

    Hey HN! While writing prompts for a few projects recently, a couple of friends and I realised that writing prompts today is like writing code in a txt file - it sucks and there is no tooling to help you. So we decided to hack on a tool to help you fix this - https://optimist.varied.ai/ It is literally a hack rn but we already find it useful for writing prompts. That said we'd love to talk to folks who are writing serious prompts everyday and see how the product can be better. Also the only reason the waitlist is there, is running this is super expensive like $100/day for…

    2023 · optimist.varied.ai

  21. 21

    Prompt optimizer available in every app

    Nov 2025

  22. 22
    VizPy27

    Turn prompt failures into executable rules — for AI agents

    Mar 2026 · vizpy.vizops.ai

  23. 23
    A2A Net25

    Automatically optimize an AI agent from your B2B SaaS APIs

    3d ago · a2anet.com

  24. 24PE

    Hey HN, We've been hard at work on a tool that we believe will change the game for developers, data scientists, and anyone working with models that rely on textual prompts. I'm excited to introduce our new tool: Automated Prompt Engineering (APE). Problem: As many of you know, how you phrase a prompt can significantly impact the results you get from models, especially with sophisticated language models. It often requires numerous iterations to hone in on the right prompt to obtain the desired response. Solution: APE is designed to tackle this exact problem. With APE, you can: - Iterative…

    2023

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