Hardin FIlter
Catch AI hallucinations before you trust the answer
7
Product Hunt Upvotes
Jul 18, 2026
Launch Date
Jul 19, 2026
First Tracked
About
AI Summary
Hardin Filter is an AI tool that verifies the accuracy of responses from ChatGPT, Claude, Gemini, and Copilot by identifying fabricated citations, non-existent references, numerical inconsistencies, contradictions, leaked data, and outdated information, providing a signed, verifiable receipt for each check. It is available as a Chrome extension, VS Code extension, or a paste-in web tool, and requires no account to use.
Hardin Filter checks AI answers from ChatGPT, Claude, Gemini, and Copilot for what actually matters: fabricated citations, references that don't exist, numbers that don't add up, contradictions, leaked data, and outdated info presented as current. Every check produces a signed, verifiable receipt (via our partners at TBN Protocol) — proof of what was checked, not just a green tick. Chrome extension, VS Code extension, or paste-in web tool. Free, no account needed.
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