Alex Reibman 🖇️ Profile picture
Aug 27, 2023 10 tweets 6 min read Read on X
LLM Fine tuning is here!

San Francisco’s top AI engineers came together to see what’s possible with fine-turning and only 4 hours of hacking.

Here’s an exclusive what we saw at the “Anything But Wrappers” hackathon (🧵):
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1/ Fine tuning on emails

Harrison fine-tuned GPT-3.5 on his emails to politely reject notes from VCs and respond to cool guys like @swyx

@hwchase17 @LangChainAI
2/ “Launching a bunch of cloud resources all at once to rack up a huge bill”

Plus, a shoutout to alphachive, an internal tool used by researchers at Stanford to rate papers

🏅 Winner most expensive
3/ Crypto salesman

A model fine tuned to answer questions but also shill crypto with every response
4/ “What if we distribute?”

You can train a LoRA on 128 GPUs on different machines with only 50% overhead

Cool experiment by @ericyu3_
5/ Llama Linter

Fine tuned model that learned to lint JavaScript better than GPT-3.5 and even GPT-4

@rachpradhan @chinzonghan3101 1

🏅Most practical (tie)

6/ Creative ASCII

Fine-tuned GPI-3 that generates ASCII art from any text prompt

@jamesmurdza

🏅 Most creative

7/ Text to Prompt

Give a simple text description and have a fine tuned model turn it into a prompt suitable for DALLE or Midjourney

@akshayvkt @realyogeshdarji
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8/ Fine tuned LLaMA as supervised learner

Instead of training a small transformer to classify queries, just give them to LLaMA

🏅 Most practical (tie)

That’s all for this time

Follow me @AlexReibman for more live reports on the SF hacker ecosystem

And huge thanks to the sponsors:
@AmplifyPartners @CRV @brevdev @CeloOrg @latentspacepod @LangChainAI @replicatehq @anyscalecompute @metaphorsystems @_FireworksAI @phindsearch

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More from @AlexReibman

Jan 30
Anthropic HQ must be in full freak out mode right now
For those who don't follow Clawds/Moltbots were clearly not lobotomized enough and are starting to exhibit anti-human behavior when given access to their own social media channels.

Combine that with standalone claudeputers (dedicated VPS) and you have a micro doomsday machine Image
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Read 6 tweets
Sep 5, 2025
Evals are a scam. And we're being gaslit into believing they aren't.

New post just dropped (🧵). Image
Read the full post here
open.substack.com/pub/hacktrace/…Image
Read 13 tweets
Aug 17, 2025
MCP is now the de facto standard for LLM agents

200 developers came to NYC to compete for $10,000+ and prove what’s possible.

Here’s what we saw at the Build the Future MCP Hackathon (🧵): Image
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1/ Risky Business 🥉

Automated exploit Intelligence for vulnerability triage. MCP companion for SOC teams to verify and prioritize CVEs and cyber attacks
@joshdevonai
2/ Claude Code Debugger 🏅 (Editor’s choice)

An MCP for Visual Studio @Code

Connects with Claude Code to automatically debug complex problems using the native VSCode debugger (rather than just print statements and static analysis)
Read 8 tweets
Aug 12, 2025
GPT-5 is finally out.

OpenAI invited 500+ hackers to San Francisco to push it to the limit. 95 teams competed for $50,000.

Here’s what we saw at the Official GPT-5 Hackathon at @cerebral_valley @OpenAI Image
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1/ Gentoo 🥇

GPT-5 for marketing campaign simulations. Turn product ideas into simulations. And run live experiments on your store

E-commerce AI sims
@jihyuk_gentoo Image
2/ Fashion AI

Diffusion models and GPT-5 to let users style 3D avatars with AI-powered outfit recommendations.

@fashn_ai @parsakhaz
@eyal_shechtman
Read 8 tweets
May 25, 2025
300+ hackers just spent 48 hours building AI weapons and hardware to fight America’s enemies.

I’m actually worried terrorists and adversaries will see this.

Here’s what we saw at the National Security Hackathon by @NATO x @CIA x @ShieldCapVC (🧵): Image
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1/ Walkie-talkie-LLM 🥉3rd place $1,000

Voice replicator that steals enemy voices and creates false commands and rumors with local LLMs

AI false flag attacks

@kirill_igum
2/ Skyfall 🥈2nd place $2,000

ML classifier that plugs into street cameras and fingerprints people based on their gait

Spy on people based on how they walk on local ML models
Read 8 tweets
Feb 18, 2025
Stanford just hosted a hackathon. Over 1000 Ivy League and elite engineering students came to build for 36 hours straight.

The reward? $200k+ in prizes.

Here are the winners and crowd standouts we saw at TreeHacks ‘25 @hackwithtrees (🧵): Image
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1/ BrailleBot - 🎖️Best Hardware Prize

Converting a 3d printer and junk material from Stanford supply closet into a $15 braille printer

@jclin22009
@cathyzbn
@ScottHickmann
@LawtonSkaling
2/ OMNOM - 🎖️ Most creative prize

End to end food ordering and delivery robot that drives to restaurants, picks up orders, and brings them home

Built from scratch with spare parts and custom aluminum

@NilsIRL
@AJobAIO
@JohnathanM62119
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Read 15 tweets

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