Pi Co-pilot – Evaluation of AI apps made easy
Hey HN — 2 months ago we shared our first product with the HN community (https://news.ycombinator.com/item?id=43362535). Despite receiving lots of traffic from HN, we didn’t see any traction or retention. One of our major takeaways was that our product was too complicated. So we’ve spent the last 2 months iterating towards a much more focused product that tries to do just one thing really well. Today, we’d like to share our second launch with HN. Our original idea was to help software engineers build high-quality LLM applications by integrating their domain knowledge into a…
Pi Co-pilot – Evaluation of AI apps made easy launched on May 22, 2025 with 34 votes, #679 of 7,905 launches that month and more than 90% of that year's launches.
In plain words
Pi Co-pilot is a tool designed to help software engineers evaluate and optimize AI applications. It simplifies the process of assessing LLM app quality by focusing on scoring and comparison rather than complex optimization workflows. The product targets developers who need to quickly evaluate AI implementations before moving to advanced tuning or fine-tuning stages. It streamlines what was previously a complicated evaluation process into a single, focused capability.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey HN — 2 months ago we shared our first product with the HN community (https://news.ycombinator.com/item?id=43362535). Despite receiving lots of traffic from HN, we didn’t see any traction or retention. One of our major takeaways was that our product was too complicated. So we’ve spent the last 2…
Does a similar job
all alternatives →- PLPi Labs – AI scoring and optimization tools for software engineers2025 · build.withpi.ai · ▲25
Hey HN, after years building some of the core AI and NLU systems in Google Search, we decided to leave and build outside. Our goal was to put the advanced ML and DS techniques we’ve been using in the hands of all software engineers, so that everyone can build AI and Search apps at the same level of performance and sophistication as the big labs. This was a hard technical challenge but we were very inspired by the MVC architecture for Web development. The intuition there was that when a data model changes, its view would get auto-updated. We built a similar architecture for AI. On one side is…
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UiHub2023 · appaca.ai · ▲118Appaca is my third pivot. A couple of years ago, I started working on an idea on no-code platform that generates code. The goal is to help devs and agencies ship products faster for their clients. I went through Antler startup accelerator and got initial funding. I was working on the right problem, but wrong solution. Instead of no-code, I should have jumped into LLM a lot earlier. I felt defeated when Lovable, Base44, and Bolt came out strong, showing the world what LLMs can do in software development. No one cared about my product anymore. I pivoted my startup second time after that, to an…
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