I've been building an AI document reader (DocMind upload a PDF/DOCX, get a summary, key points, plain-language explanation, or chat with it directly).

The hardest problem wasn't extraction or summarization it was getting the model to admit when something isn't actually in the document instead of confidently making something up. Early on, I had a small model invent an entire fake financial report for a document that was actually about fintech hardware fluent, convincing, completely wrong.

What ended up working: switching to a stronger primary model, adding a "groundedness check" that verifies the output actually shares vocabulary with the source text before accepting it, and falling back to a retry (or a different provider entirely) if it fails that check.

Curious how others building with LLMs are handling this are you doing something similar (grounding checks, RAG-style citations, confidence scoring), or found a different approach that works better? Launching my product Wednesday, but genuinely more interested in how other people are solving this specific problem right now.

They can talk.

They can reason.

They can call APIs.

I m curious how other people here deal with this.

I save a lot of YouTube videos. Tutorials, courses, talks, random videos I want to come back to later... and eventually my playlists start becoming a little chaotic.

The part I find surprisingly annoying is deciding which playlist a new video belongs in. Sometimes I have several playlists where it could reasonably go, and I end up either overthinking it or just throwing it somewhere.

Download multiple images from any source

Bulk Image Downloader from URLs makes it effortless to save multiple images at once no more right-click, save-as, one at a time.
How it works:
Paste as many image URLs as you want into the box (one per line or space-separated). The extension instantly detects valid links, flags duplicates and invalid URLs, and shows you a live preview of every image before you download.
Key features:
Paste unlimited image URLs at once
Automatic duplicate detection and removal
Live thumbnail preview for every link
Download images individually or bundle them into a single ZIP file
Optional 1:1 square canvas mode (1080 1080, centered with white padding) perfect for social media
Choose your download folder
Light and dark mode
Clean, fast, and fully private everything runs locally in your browser
Who it's for:
Perfect for e-commerce sellers preparing product photos, social media managers, designers, researchers, and anyone who needs to grab a batch of images from URLs quickly.
Privacy first:
No accounts, no tracking, no data collection. Your URLs and images never leave your device.

I'm launching QuickTaskManager on Product Hunt in a couple of days, and before I do, I wanted to ask something I've been thinking about a lot.

Almost every task/project manager out there (Asana, Monday, ClickUp, Trello...) puts every customer's data in the same shared database, with an internal ID separating companies. It's the standard, cheap-to-scale way to build multi-tenant SaaS.

I built QuickTaskManager differently: every company gets its own physically separate database and its own dedicated link (yourcompany.sepirox.com) instead of a shared login screen.

A few questions for anyone who's used tools like this at work:

Hey PH community, solo dev here.

115 days ago I built my first tool a PDF compressor. One rule:

the user's file never leaves their device. No uploads, ever.

That obsession snowballed. 115 days later, 90 tools across 10 categories:

One of the features we've built into AntiRot is To-Do Friction Block.

The idea is simple:

Hi everyone,

I m working on a small online tool for people who want to create stylish text, usernames, and gaming nicknames using different fonts and symbols.

The goal is to make it easy to experiment with different styles and copy the finished text for use on social media, games, and profiles.

I d really appreciate feedback on the design, usability, and which features would be most useful to add next.

Hey, I'm Ashton.

I finished it on a Thursday night and just sat there for a minute feeling kind of stupid.

Not because it was hard. Because it wasn't. I'd been putting this off for months thinking it'd be this huge thing, and then it just worked, and my first thought was wait, that's it? That's the thing people are charging monthly for?

I've paid for one of these before. Needed to fix a typo on a contract, one word, and I'm sitting there with a credit card form open at eleven at night because the free version would only stamp a watermark across the page. I remember being genuinely annoyed. Not at the price, it wasn't much. At the fact that they knew I'd pay. That's the whole product. Not the software. The moment you're stuck.

We spent the last few months building a template library, and it is now free to use: 113 templates, all built with Tailwind.26 of them are complete multi-page sites rather than single landing pages. The wedding one runs to 11 pages because guest logistics deserve their own space - venue with a map, accommodation, gift registry and a working RSVP form, kept apart from the photo gallery and the couple's story. There is a 12-page conference site with a live countdown, speakers and ticket tiers, and an 8-page food truck site with a menu and locator. The other 87 are one-pagers: bakeries, charities, churches, resumes, portfolios, manufacturing.Everything is editable on a drag-and-drop canvas, and any site exports as a clean Next.js project or one self-contained HTML file, so you keep the code.Gallery: https://alpha.webuilder.me/galle...: I'm on the team that builds it.The genuine question I have for this forum: which industries would you want covered next? We picked ours by guessing, and I would rather build what people actually ask for.