Build LLMs Apps Easily

What it does

Open Source: Open source MIT license Build Fast: See your LLM apps running live Extensible Component: Custom component integrations Open source UI visual tool to build your customized LLM flow using LangchainJS, written in Node Typescript/Javascript

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  n8n LangChain integration2023 · ▲202

  Build LLM apps and plug AI into your team's operations

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  LangSmith2023 · ▲349

  Build and deploy LLM applications with confidence

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  Langfuse Prompt Experiments2024 · ▲467

  Open Source LLM Engineering Platform

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  AskCodiNov 2025 · askcodi.com · ▲230

  Custom LLMs, without training. Use via openai compatible api

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  Gradient2023 · ▲153

  Developer API for building private LLMs that you own

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  LLM Spark2023 · ▲365

  Dev platform for building production ready LLM apps

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  I trained a 125M model to autocomplete piano on-device▲598

  I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.

  AI · 19d ago · simedw.com

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  Astute▲585

  Automate your B2B brand going viral, with new media creators

  AI · 20d ago · company-app.joinastute.com

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  Grok Bot▲547

  AI teammates that you can give real work to

  AI · 27d ago · x.ai

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  Needle2: 14MB agentic LLM for phones, wearables, smart home and robots▲537

  Hey HN, Henry from Cactus here! We previously released Cactus Needle, a 14MB agentic LLM for tool call, device use, and structured extraction for phones, wearables, smart homes, small robots and microcontrollers. We got really great feedback here, and have now incorporated the suggestions to release Needle 2. The whole model is a single 14MB binary that runs a full session in 28MB of RAM; 45m parameters at 2bit compression. Needle hits 500 tokens/sec decode speed on a Raspberry Pi 5, sits between 400-1,500 tokens/sec on VR devices like Meta Quest 3S and Apple Vision Pro, and ranges…

  AI · 29d ago · cactuscompute.com

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  Monid▲480

  One wallet, every paid tool your agent needs

  AI · 8d ago · monid.ai

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  Clara AI SDR▲460

  Turn website visitors into qualified pipeline

  AI · 21d ago · clarasdr.ai

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  Sidekick▲1,343

  An AI-powered accessibility assistant in Stark

  AI · 2023 · getstark.co

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  Boring Report, a news app that uses AI to desensationalize the news▲1,166

  In today's world, catchy headlines and articles often distract readers from the facts and relevant information. By utilizing OpenAI's language models, Boring Report processes sensationalist news articles, transforms them into the content you see, and helps readers focus on the essential details. We recently updated our iOS app experience, so any and all feedback would be appreciated. App Link: https://apps.apple.com/us/app/boring-report-news-by-ai/id644...

  AI · 2023 · boringreport.org

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  Dora AI (Alpha)▲1,134

  Generating powerful websites, one prompt at a time

  AI · 2023

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  Raycast Pro▲955

  Unlock a new level productivity with AI, Cloud Sync and more

  AI · 2023 · raycast.com

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  AudioPen▲888

  The easiest way to convert messy thoughts into clear text

  AI · 2023 · audiopen.ai

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  Momentum Page▲834

  Launch your website in seconds, get users in minutes

  Dev tools · 2023 · page.mmntm.build