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AI · alternatives · 2026

24 alternatives to Hardin FIlter

Catch AI hallucinations before you trust the answer

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Check if your robots.txt allows ChatGPT, Google Gemini

    2025 · llmseoindex.com · its alternatives →

  2. 2

    AI detector & checker for ChatGPT, Claude & Gemini

    2024 · xdetector.ai · its alternatives →

  3. 3

    Verify ChatGPT, Claude, Gemini, Perplexity in real time.

    Nov 2025 · hyde.bot · its alternatives →

  4. 4

    Best ChatGPT detector

    2024 · wordvice.ai · its alternatives →

  5. 5

    Hi HN, We just launched [AI Page Ready](https://aipageready.com) — a tool to check if your web pages are discoverable and understandable by AI tools like ChatGPT, Claude, Gemini, and Perplexity. It runs 40+ checks across six areas: Discoverability & Crawlability, Structured Data & Semantics, Content Quality, Answer-Ready Formatting, Accessibility & Rendering, and Deep AI LLM-specific checks. Would love your feedback — especially if you work in eCommerce, SEO, content, SaaS, or are trying to get traffic from AI tools. (Also open to ideas on what else to add to the tool!)

    2025 · aipageready.com · its alternatives →

  6. 6

    The fact-checking copy creator

    2023 · mindmeldcanvas.com · its alternatives →

  7. 7

    Stop BS in real-time with AI that fact-checks as you listen

    Mar 2026 · factsnobullshit.up.railway.app · its alternatives →

  8. 8

    Detects hallucinations (false info) in AI-generated content

    2023 · its alternatives →

  9. 9
    Verol▲98

    Stop AI hallucinations

    Jun 2026 · chromewebstore.google.com · its alternatives →

  10. 10

    Check if ChatGPT and AI search engines understand your brand

    May 2026 · arobis.ai · its alternatives →

  11. 11

    AI visibility checker. See your brand's AI visibility score across ChatGPT, Gemini, Claude and Perplexity, and check whether AI mentions your brand.

    Jul 2026 · aivisibility.pro · its alternatives →

  12. 12

    Fact check any tweet thread or article

    2025 · x.com · its alternatives →

  13. 13

    Most Trusted AI Checker for AI Content

    2025 · aichecker.pro · its alternatives →

  14. 14

    Catch AI's made-up facts before you publish them

    Jul 2026 · aitoolcritic.com · its alternatives →

  15. 15

    Instant fact-checking for AI chatbot responses.

    2025 · chromewebstore.google.com · its alternatives →

  16. 16
    Codoki▲25

    Code reviews that catch AI hallucinations

    Nov 2025 · codoki.ai · its alternatives →

  17. 17

    AI detector, AI checker, & AI humanizer

    2024 · undetectable.ai · its alternatives →

  18. 18

    Catch AI hallucinations & fact-check ChatGPT for free

    Aug 2026 · chatgptlie.com · its alternatives →

  19. 19

    Is your business invisible to ChatGPT and Siri?

    Jan 2026 · becomefoundbyai.app · its alternatives →

  20. 20

    The AI agent that collects testimonials while you sleep

    Jul 2026 · proofling.com · its alternatives →

  21. 21

    See if ChatGPT, Gemini, and other AI's mention your product

    2025 · lucidrank.io · its alternatives →

  22. 22

    I built a tool that scans AI platforms with buyer questions relevant to your domain and shows you whether they mention you or not. Enter your domain, it generates queries based on your space, sends them to ChatGPT, Perplexity, and Google AI, then scores you out of 100 based on how often you show up in the responses. The part I think is actually useful: it doesn't just tell you the problem. It shows you which queries you're missing from, why, and gives you fix pages (structured content designed to be citable by LLMs) and weekly action plans. Free scan on the homepage, no signup needed. Tech:…

    Feb 2026 · cabbageseo.com · its alternatives →

  23. 23

    Find out if ChatGPT recommends you — or your competitor

    Aug 2026 · tabyian.com · its alternatives →

  24. 24

    Verified business facts that AI answers can cite

    Jul 2026 · groundedaeo.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 →