Roberto Moreno (@robertoamoreno) header
Roberto Moreno (@robertoamoreno) profile picture

Roberto Moreno

@robertoamoreno

I test AI so you don't have to. Real experiments, real numbers, and the occasional game my kids built.

 Arizona, USA
Joined November 2008
  • Tweets1K
  • Following2.3K
  • Followers736
I test AI so you don't have to. Every week I build something with the newest models and post what works, what breaks, and what it costs. A few recent ones 🧵
1
1
90
Built a tiny software factory on my Mac. Drop tasks in Todo → each one goes to an agent in its own sandbox → my tests run → ready for review. One real run: 4 tasks, 53 seconds, $0.76. Favorite moment: the agent kills its own shell, notices, and retries. What would you throw at it first?
1
28
It's called SI Fabrik. It's free for macOS 26+ and implements OpenAI's open Symphony spec. Looking for people to break it: sifabrik.com
Turn your backlog into pull requests · SI Fabrik

Turn your backlog into pull requests · SI Fabrik

SI Fabrik runs Claude Code or Codex on every task in your tracker, each in its own sandbox, and hands back a branch and a pull request. Free for macOS.

sifabrik.com
7
My kids now earn TV time by learning 📺 Custom LG TV app: grade 2 & 5 math/science skills with prerequisite locks, from Marble's open skill taxonomy (h/t @lionel_mora). 1 skill = 20 min. A Raspberry Pi kills Netflix, Disney+ & Xbox when time's up. Night one: they hate me 😂
2
106
My son used Grok Bot to build games, pick a domain, launch his own site, and now he's running the promo too. 4 games so far, and they all play on phones, tablets, and TVs. In Bogie Blasters you power up a mega sneeze and save the bathroom from King Clog. Tell him what game he should build next 👇
1
2
97
Play them here: snotgames.com/
Snot Games – Silly games, big smiles!

Snot Games – Silly games, big smiles!

Super silly games for kids 5–10. Play free in your browser!

snotgames.com
15
Big Lou is having a night in Old Town Scottsdale 🕺 Ragdoll faceplants, a funky chicken dance, and a Pedal Pub crash. New game we're building, coming soon. Who wants to play? 👇
3
169
A flyable Tesla Roadster game in the browser, made in 5 prompts. Thrusters, barrel rolls, fireworks.
1
36
Follow along if you want the real results, not the hype. What should I test next? 👇
3
We made a game starring our real grandma. She sneezes her teeth out and you have to catch them before the pigeons do. ¡ACHÚ! 👵🦷 Should we put it online? 👇
44
My kid and I built a game where a cartoon tiger goes radioactive and fights 10 monsters. Beast mode vs. Omega Beast is my favorite part 🐯☢️ Not online yet. Want to play it? 👇
2
75
Replying to @elonmusk
@elonmusk is right we are going to need more compute power. showed my kids 8-10 how to use @bot to build 3d games in matter of a couple hours they have built 5 games this is incredible
Image from Roberto Moreno (@robertoamoreno)
Image from Roberto Moreno (@robertoamoreno)
Image from Roberto Moreno (@robertoamoreno)
Image from Roberto Moreno (@robertoamoreno)
1
1
43
Image from Roberto Moreno (@robertoamoreno)
Image from Roberto Moreno (@robertoamoreno)
Image from Roberto Moreno (@robertoamoreno)
Image from Roberto Moreno (@robertoamoreno)
5
Roberto Moreno retweeted
Andrey (@Andrey__HQ) profile picture
Andrey
@Andrey__HQOct 19
Official agent terms from Amazon finally came out sellercentral.amazon.com/hel… Take a look, some interesting points they make
4
3
2
43
21,253
While shopping for shoes, my 82-year-old mother interrupted the salesperson to seek advice from @grok.
Image from Roberto Moreno (@robertoamoreno)
1
62
I asked Grokbot to turn the new Tesla Roadster event into a game. A few prompts later, I can fly it, flip it, barrel roll it, and even write code to pilot it 🚀 Four thrusters, sweeping spotlights, fireworks. All in the browser. Play it 👇 robertoamoreno.github.io/roa… @Tesla @bot
40
We were paying LLM rates to answer one yes/no question. Does this message break fair housing law? So we tested a model that returns typed decisions instead of generating text. @typesafeai 229ms per check. ~$1.30 per 10,000 messages.
7
1
106
What are you using an LLM for that maybe shouldn't be an LLM call?
6
Same pattern anywhere you'd force an LLM to classify, score or gate: ticket routing, urgency scoring, refund intent, RAG relevance, prompt-injection screening. An experiment, not legal advice or a compliance product. fairhousingchecker.com

FairCheck — a fair housing guardrail you can read

29 typed judgments, 107 answered cases, 54 jurisdictions, 245 regulation paragraphs. Test a message and see exactly why it passed or failed.

fairhousingchecker.com
11
What I didn't expect was that the policy stays in my code. The model returns probabilities. The thresholds that turn them into allow, review or block are constants I tune against labelled cases, not weights I retrain.
6
Load more