BlogViral

Show HN: Send your first Peppol e-invoice in 5 minutes (EU mandate live) https://getpeppr.dev/ April 30, 2026 at 12:36AM

Show HN: A new benchmark for testing LLMs for deterministic outputs When building workflows that rely on LLMs, we commonly use structured output for programmatic use cases like converting an invoice into rows or meeting transcripts into tickets or even complex PDFs into database entries. The model may return the schema you want, but with hallucinated values like `invoice_date` being off by 2 months or the transcript array ordered wrongly. The JSON is valid, but the values are not. Structured output today is a big part of using LLMs, especially when building deterministic workflows. Current structured output benchmarks (e.g., JSONSchemaBench) only validate the pass rate for JSON schema and types, and not the actual values within the produced JSON. So we designed the Structured Output Benchmark (SOB) that fixes this by measuring both the JSON schema pass rate, types, and the value accuracy across all three modalities, text, image, and audio. For our test set, every record is paired with ...

Show HN: Open Bias – proxy that enforces agent behavior at runtime https://ift.tt/7ZP1h5T April 29, 2026 at 01:32AM

Join Us May 3: Muni Appreciation Day Kicks Off SF City Football Club's New Season By Danbee Song When you head out for a match, you'll spot the iconic Muni ”worm” logo on SFCFC jerseys.   The 2026 San Francisco City Football Club (SFCFC) season is almost here — and there’s more to celebrate than just soccer. SFCFC is the country’s first — and San Francisco’s only — supporter-owned soccer club. This weekend, it returns with fresh energy, a full home schedule and a continued partnership with Muni. The season kicks off Sunday, May 3 with Muni Appreciation Day. This special match celebrates the riders and employees who help keep San Francisco moving. Whether you're a longtime supporter or a... Published 2026-04-28T00:00:00Z https://ift.tt/3XZscCa

Show HN: I built a dating SIM that prepares you for your date https://ift.tt/UcmW7X8 April 29, 2026 at 12:16AM

Show HN: Ragnerock, an AI data analysis tool Hi HN, I’m Matt Mahowald, and together with my cofounder John, we’re launching the public beta of Ragnerock today. As a data scientist, you spend the majority of your time wrangling data. Even though you might have a set of techniques and tricks you like to use, how exactly you treat a particular source of data tends to be fairly bespoke, so you end up writing custom logic each time. Ragnerock was born from the observation that modern LLMs can be used to automate a lot of the grunt work involved in this process, while still allowing for fully customizable pipelines. What’s more, by leveraging techniques like constrained decoding, it’s possible to provide a unified query interface regardless of the data source - bridging raw data sources like text and images with your existing structured data living in your databases. Ragnerock has four main components: - A workflow designer that lets you build LLM-driven data processing and analysis pipeline...