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Grounnel - Verify the claims in any text, with evidence for every ve...

Paste any text. Grounnel pulls out the factual claims, checks each one against sources on the open web, and shows the evidence next to every verdict.

Built by Dmitrii Lemin · Artificial Intelligence · Productivity · Education · Free

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In category: #2836 of 2883 · Artificial Intelligence

Grounnel is a Community listing on Launch Llama with 0 total upvotes, founded by Dmitrii Lemin who joined in Oct 2026, compared against 6 alternatives.

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Dmitrii Lemin (Joined Oct 2026)

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Compared against 6 alternatives

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Grounnel

About

Grounnel is a free fact-checker with no signup. Paste a text (best around 350 words, up to 40 claims per run). It extracts the factual claims, searches the web for each one, and marks every claim in place as supported, partially supported, contradicted, unsupported, unverifiable, or excluded, with the source passage and URL beside it. "Supported" means a source we found agrees, not that the claim is proven true. It is built to avoid calling a true sentence false, and it would rather miss something than guess. Every run gets a public share link. Public alpha since September 2026, built by one developer. Good for student essays, news drafts, research papers, blog posts and AI-generated text. Source: https://github.com/lemind/biassemble-core

Use Cases

  • Check a student essay before handing it in
  • Verify facts in a news draft before publishing
  • Spot unsupported claims in a research paper
  • Fact-check a blog post
  • Check AI-generated text for made-up facts

Pricing

Free. No signup, no paid plan.

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Alternatives

Bullshit DetectorFor researchers: Bullshit Detector fact-checks claims across the internet so you verify information accuracy before sharing or acting on it.AnalookFor founders: Analook generates full competitor teardowns in 60 seconds covering SEO, traffic, and pricing so you make faster strategic decisions.VerdiktFor founders: Verdikt generates research-backed validation reports with 40+ sources before you build so you reduce startup idea risk.LenzFor AI product teams: Lenz fact-checks AI outputs across multiple models so your users get verified claims instead of hallucinations.Prerender BuddyFor founders and website teams: track AI mentions and citations, diagnose crawler access, and improve readability through managed prerendering and reviewed content workflows.FaultsenseFor developers: Faultsense tracks assertion failures in production across releases and cohorts, surfacing silent bugs that break conversions.

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Grounnel

  • Founded by Dmitrii Lemin
  • Listed October 2026
  • Updated October 19, 2026