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AI · alternatives · 2026

24 alternatives to Mirrors – test AI agent changes by replaying production traces

Mirrors rebuilds the systems your AI agents call and replays real sessions against every prompt, tool, or model change before it reaches production.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier.

  1. 1

    Automated Penetration Testing for AI-Built Apps

    2021 · replay.io · its alternatives →

  2. 2
    Retracefree tier, from $29/mo▲101

    Retrace records your AI agents runs so you can replay them step by step, fork from any point to a fix, and share the result as a link

    Jul 2026 · retraceai.tech · its alternatives →

  3. 3
    Mirror AI▲208

    AI that creates personalized content around you/your friends

    2017 · its alternatives →

  4. 4
    Rerun▲301

    The easiest way to build AI agents for all your tasks

    Jul 2026 · rerun.build · its alternatives →

  5. 5
    Reflexiofree tier, from $299/mo▲295

    Behavioral learning that makes AI agents better over time

    Sep 2026 · reflexio.ai · its alternatives →

  6. 6
    Re_gent▲179

    Version Control for AI agent Activity

    May 2026 · re-gent.dev · its alternatives →

  7. 7MW

    We built a tool where you can simulate anyone, in 30 seconds, using all of their publicly available data, for free. Check it out

    2025 · mirr.world · its alternatives →

  8. 8

    Visual trace replay for AI apps to fix bugs in one click

    Apr 2026 · glassbrain.dev · its alternatives →

  9. 9
    Glass▲83

    Continuous Improvement for your AI Agent

    Mar 2026 · glasshq.ai · its alternatives →

  10. 10

    Hi HN! We’re the team behind Fiddler, and we recently built an Agent Cache feature. It works by capturing an LLM request/response pair and, once caching is enabled, serving subsequent matching calls locally so duplicate requests never hit the provider. It’s meant to reduce three pains that show up together in agent development: token cost, feedback-loop latency, and output non-determinism. We’d love to hear your thoughts.

    Aug 2026 · telerik.com · its alternatives →

  11. 11

    Models matter. Context matters more. Give your agent a plan.

    Jun 2026 · deepworkplan.com · its alternatives →

  12. 12

    Skyrocket your conversion rates on autopilot (using GPT-3)

    2021 · abtesting.ai · its alternatives →

  13. 13

    Your clone remembers people you've never met

    Feb 2026 · brussle.com · its alternatives →

  14. 14
    Foil▲83

    An AI agent that monitors your AI agents

    Mar 2026 · getfoil.ai · its alternatives →

  15. 15

    AI-powered face swap

    2018 · its alternatives →

  16. 16

    Build AI agents you can see, control and scale

    Feb 2026 · make.com · its alternatives →

  17. 17
    Foundry▲162

    Build, test, and improve AI Agents

    2024 · thefoundryai.com · its alternatives →

  18. 18

    Get interview ready in days, not weeks.

    May 2026 · trymirror.ai · its alternatives →

  19. 19

    Hi HN, TL;DR Mirror AI is a cross-platform desktop action oriented LLM. Instead of just replying with text, it can run terminal commands, move files, hit APIs, send email/messages, schedule calendar events, query databases etc. - and chain those steps in one request. Why I built it Chatbots are great for answers but stop at the “OK, now go do it” moment. I was copy-pasting between ChatGPT and my shell/IDE/Gmail far too often, so on red-eye flights I hacked a bridge that lets an LLM execute tasks under a permission layer. Friends asked for it, feature-creep happened, and here…

    2025 · themirrorai.com · its alternatives →

  20. 20

    Near-human phone support and conversation on any site

    2024 · conversionagent.ai · its alternatives →

  21. 21

    Build your own AI Agent for machines!

    2025 · share.streamlit.io · its alternatives →

  22. 22

    See what your AI agents do behind

    21d ago · le-max-app.com · its alternatives →

  23. 23

    An universal agent

    2025 · expireddomains.com · its alternatives →

  24. 24

    AI Proctor: AI that protects fairness in hiring & tests

    Jan 2026 · app.qlay.ai · 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 →