Pi

What it does

Pi is a toolkit of 30+ AI techniques designed to boost the quality of your AI apps. Pi first builds your scoring system to capture your application requirements and then compiles 30+ optimizers against it - automated prompt opt., search ranking, RL & more.

• PL
  Pi 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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  Pi by Inflection AI2023 · pi.ai · ▲96

  A kind and supportive companion that’s on your side

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  AI tool database organized by industry, function, and task

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  SkillkitFeb 2026 · agenstskills.com · ▲252

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  Pie2025 · pie.inc · ▲276

  The first AI QA team. Ship with confidence.

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  Pixeebot2024 · pixee.ai · ▲222

  Your automated product security engineer

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  Spira Maxima▲578

  Video model that turns script into viral social media videos

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  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

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  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 18d ago · tej.as

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  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 20d ago · stillwet.art

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  Onepin▲384

  AI voiceover with every name, price and date said right

  AI · 30d ago · onepin.ai

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  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

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  Sider 5.0: Deep Research with Wisebase▲1,358

  Mimic Human Research & Save Findings in AI Knowledge Base

  AI · 2025 · sider.ai

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  MGX (Now Atoms)▲1,296

  Turn your ideas into products that sell

  AI · 2025 · atoms.dev

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  Aha▲1,152

  The world's first AI influencer marketing team

  AI · 2025 · ahacreator.com

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  Fluently▲976

  Start speaking English as well as your native language

  AI · 2025 · getfluently.app

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  TheySaid 2.0▲917

  Conversational AI surveys, interviews, user tests, polls

  AI · 2025 · theysaid.io

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  ツSupercut▲880

  Record your screen, share instantly, look like a PRO

  Growth · 2025 · supercut.ai