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Ask HN: What Are You Building with AI?

2•fraXis•10h ago
Are you building with AI for yourself, your employer, customers, or as a startup?

What LLMs, coding agents, or development tools are you using? Are you primarily prompt coding, vibe coding, or using a more structured agentic workflow?

Are you using one agent or coordinating multiple agents? How much of the generated code do you review or rewrite?

Has AI allowed you to build something you could not have built previously?

What have you learned that would help someone starting an AI-assisted coding project today?

Comments

penpendian•10h ago
heavily on ai be pre context linking storytelling machine less dependent be robotic verification machine that deal with robot that use ai
zhonglin•10h ago
I am building with AI as a startup. In most case I used Codex, sometime claude. Vibe coding is so much fun. Just let Sol-Ultra to decide whether we need a sub-agent. Yes, I built an AI browser which in the previous I would never imagenate I can do this, I am an mobile developer, none of web experience, none of chromium knowledge. But as my project, it seems users like the video download feature than all the AI skill I have put inside the browser project. LOL so you built something with AI but you will find it might not be the user case.
Sia123•10h ago
I think nowadays AI is more personal, especially the AI coding. I always vibe coding some small tools to make a smooth workflow.
veraxapp•9h ago
I built veraxapp.com over my high school summer break — a backtesting tool for finance/trading. I mainly used Claude Code, and I'd say I was semi-vibe coding: I made the product decisions and reviewed everything, the AI wrote most of the actual code. And to be honest, developing it was the easy part for me. Getting people to see it, on the other hand, is much harder. Happy to answer anything about the workflow.
ARayOutOfBounds•8h ago
Yes?
coreyp_1•1h ago
3d print models, parametrically generated.

Blender can run Python... with the app open or headless.

My Blender skills are nigh useless. I know how to describe what I want mathematically with variables/constraints, but I don't know what magical incantation to use to make it appear in Blender... and don't get me started on the hotkeys!

About a year and a half ago, I started writing a script (by hand) to generate a non-trivial widget for personal use (a zigbee controller housing). I sketched my own pencil drawings and wrote about 900 lines of python. It was going really well for a few days, but then life got busy. The file was an experiment (it was named `temporary.py`!!!) that I decided didn't need to die. But I haven't touched it since.

Enter AI... This weekend, after not touching the project for 18 months, I used Cursor to convert my one messy file into a proper, multi-project mono repo for all of my 3d designs, abstract out common Blender commands, scaffold a proper structure for revisions, etc. Then, I was able to use Cursor to finish the design.

I love it! I'm still making my designs (believe me, these aren't 1-prompt creations) but I don't have to worry about the minutiae of Blender's interface and, most importantly, I can use its power.

Side point: I loved it when I could say something like: The body ellipse should have a base whose height is .5 of the body ellipse diameters is .5 the shadow of the body. Using a spline/bezier curve-like profile, it should rise from the floor plane, shrink to 1/3 the size of the body, then grow to meet the ellipse at 1/3 the height of the ellipse, at an angle matching the ellipse's tangent, and parallel to the floor. And it just worked! And I can change the proportions and regenerate the model whenever I want to tweak visual aesthetics.

I have a list of things that I've wanted to model, but the overhead of learning interfaces when I'm already insanely busy is, in a word, prohibitive. This frees me up to build what I can already see clearly in my head, and I love it!

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