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Show HN: A fact-checker where the model can't fabricate a quote

https://grounnel.vercel.app/
2•lemind•44m ago

Comments

vintagedave•6m ago
This is really interesting. I tested it vs an article I just posted [0], and got these results: https://grounnel.vercel.app/check/bgrXR8CzY0T4wEabapJrQAJWpc... Which looks really solid.

The example [1] travel diary is not perfect though -- not a criticism, you're clearly in alpha, and I think this is brilliant work. I also appreciate sharing an example that may not be marketing-perfect, if you know what I mean.

> I remembered reading that the Great Fire of London happened in 1766 and destroyed most of the medieval city, so I was surprised that some old buildings were still standing.

The entire sentence is marked green, but I think it is only the second half - old buildings still standing - that is true. The Great Fire occurred in 1666, so this is a century off. In fact, the following sentence says that (ie the author self-correct) and is marked as true.

> It was interesting to remember that the tower was originally constructed in London and later transported to Paris, although I wasn't completely sure that story was true.

This is correctly red, but does the second clause hint to the verifier?

I re-ran with the "hints" removed, to get [2]. This one was more accurate, in that the 1766 sentence was marked false. My reading here, with no idea about your implementation, is to ask if hints in the text have any effect on the verification, or if the highlighting can split across clauses that are then checked independently.

I love seeing this. A while ago we launched Respectify on HN which is about good communication, so we detect logical fallacies, poor language, probable misunderstandings, etc. Something we have toyed with is factual verification too: that is, moving comment communication (healthy interaction) to avoiding fake news etc. You're doing that. It's brilliant, and I strongly encourage you to continue.

[0]: https://news.ycombinator.com/item?id=49784455

[1]: https://grounnel.vercel.app/about

[2]: https://grounnel.vercel.app/check/LzvDF99mElJmuZ25yBelpr2XX4...

Show HN: Paste a domain and watch four AI engines judge every page

https://www.citegraph.app/live
1•asifkabir•1m ago•0 comments

Jev at the Branches: The State Machine Is the Agent

https://stacktoheap.com/blog/2026/09/21/the-state-machine-is-the-agent/
1•manojlds•5m ago•0 comments

Show HN: Sealr – E2EE messenger with per-message rules and screenshot blocking

https://sealr.chat/
1•filoviercki•7m ago•0 comments

Letting Astra decide when to compact its own context

https://github.com/manuelcecchetto/codex-context-gc
2•manuelcecchetto•14m ago•1 comments

Holocene Calendar

https://holocenecalendar.com/
2•TP740•15m ago•0 comments

Show HN: Deterministic UI testing that checks backend logs, not just the UI

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1•shad0w008•24m ago•0 comments

Google Home MCP Server

https://developers.home.google.com/mcp/home
2•CoderLim110•24m ago•0 comments

OpenAI's Agentic Software Factory

https://newsletter.pragmaticengineer.com/p/openai-software-factory
2•ishener•25m ago•0 comments

Show HN: I found the free SaaS listing directory

https://goodsaas.xyz
1•agnes_realm•26m ago•0 comments

AI hallucination of Chinese nuclear components almost led to US Military attack

https://arstechnica.com/ai/2026/09/report-us-almost-boarded-chinese-ship-over-hallucinated-ai-arm...
3•vintagedave•26m ago•0 comments

Show HN: SnipStash, a snippet keyboard for iOS with no accounts or servers

https://khancreators.netlify.app/apps/snipstash/
1•chhasnikhan•26m ago•0 comments

Show HN: Using Qwen to track under-covered news

https://pressaudit.org/f/findings/underreported-in-the-us
1•SLHamlet•26m ago•1 comments

Diogo Almeida: Thoughts on a Typesafe Coding Agent

https://docs.google.com/document/d/1G61uUB0FifUnmmrPzFQojZ3KpczYKmXGpgEXDJ2l_Zg/edit?usp=drivesdk
1•yarapavan•28m ago•0 comments

Bsdkrun: A Firecracker-style MicroVM for BSD/Linux guests, built on libkrun

https://github.com/tsirysndr/bsdkrun
1•rguiscard•30m ago•0 comments

Unix Year 2038 problem and the art of underestimating

https://www.buzzsprout.com/2469780/episodes/19824439
1•ibobev•31m ago•0 comments

Adversarial examples for fast hash functions

https://thomasahle.com/blog/adversarial-examples-for-hashes/
1•ibobev•32m ago•0 comments

Hackathons in the vibe coding era: our token economics experiment

https://quesma.com/blog/our-first-hackathon/
2•jakozaur•34m ago•1 comments

Show HN: Jeeva – A modular trading engine for mid-frequency trading using Jev

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1•mugiwaraa_eth•35m ago•0 comments

Use your computer the right way: tmux

https://chappelle.dev/words/tmux-sessionizer.html
1•binkd•35m ago•0 comments

Ask HN: What's hardest about keeping PII out of unnecessary systems?

1•Securelytixdev•36m ago•0 comments

In September, AI generated code has made up 17.25% of all Linux Kernel patches

https://twitter.com/LundukeJournal/status/2101841277432070210
16•tosh•37m ago•14 comments

CSS features you can use today with no build step

https://flaviocopes.com/modern-css-features/
1•ibobev•37m ago•0 comments

Show HN: Bridgeflare – Replace Docker with Cloudflare

https://github.com/ianrumac/bridgeflare
1•hypendev•37m ago•0 comments

Kit foxes show adaptive compromise characteristics under intraguild predation

https://www.nature.com/articles/s41598-024-61692-1
1•bryanrasmussen•38m ago•1 comments

ChatGPT Pets

https://learn.chatgpt.com/docs/pets
2•_doctor_love•40m ago•0 comments

Disney+: New user agreement allows ads before movies in all subscriptions

https://consumerrights.wiki/w/Disney%2B_ad_policy_change
3•DeepLogin•41m ago•0 comments

Cracking Software with AI

https://apsecurity.dev/posts/cracking-software-with-ai/
1•apsecurity•43m ago•0 comments

Show HN: A fact-checker where the model can't fabricate a quote

https://grounnel.vercel.app/
2•lemind•44m ago•1 comments

I'm eventually going to want a "casual" browser passkey system

https://utcc.utoronto.ca/~cks/space/blog/web/BrowserCasualPasskeyDesire
1•random2021•45m ago•0 comments

Project sadak – user data breached

1•gobountyhunter•49m ago•1 comments