Get Your Due Dillegence, Done.
Introducing Chex, the AI claim checker by Hyperplexity
How does Chex work?
Chex extracts claims from text and verifies them against provided references and other sources using Perplexity and Claude. You get an Excel file with claim by claim analysis back. Great for checking AI outputs, scientific manuscripts, or your uncle Barry’s latest facebook post.
Example Chex Outputs
Access the Excel output for sample use cases. Take a look at the Updated sheet, each row is a claim with rich information in the columns, including:
Claim Criticality - Which claims matter most to the central thesis
Support Level - How well sources back the claim
Qualified Fact - The claim rewritten based on what sources actually say
Validation Notes - Key validation insight from references or external sources
Validation cells are color coded by the AI’s confidence in the cell’s text (Green/Yellow/Red for High/Medium/Low confidence).
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We asked 4 state of the art AIs and passed their responses (Perplexity, Claude, ChatGPT and Grok) through the reference checker.
Download the reference analysis here for each: Perplexity, Claude, ChatGPT and Grok. They all did great (Tylenol doesn’t cause autism, btw!).
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A paper posted on arxiv suggests that continual exposure to junk web text induces lasting cognitive decline in large language models (LLMs). We ran all 47 of its claims and through the wringer.
You can dowload the analysis here.
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The 2025 Ig Nobel Prize winners for their seminal work in pasta texture can now also revel in their great referencing skills.
Download the claims analysis here. They did great - the validator flags experimental outcomes that require peer review.
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We took an X.com conspiracy that mRNA vaccines alter DNA and ran it through.
Chex took it apart, piece by piece here.
Chex , Hyperplexity & Eliyahu
Chex is an application of Hyperplexity (here) - a tool that generates, validates and updates research tables by synthesizing hundreds of calls to Perplexity and Claude.
Both tools are built and mantained by Eliyahu (here) - a consulting group focused on upskilling teams with an intensive program that boosts capability and creativity through AI-driven innovation.
