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Posts by Yoav Farhi

This took a few hours from inception to deployment, with Gemini 3 doing most of the work this time, including the slick design. Hope you find it useful!

4 months ago 0 0 0 0
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metrics.help - ML Metrics Guide Machine learning metrics and algorithms, explained. Focus on LLM fine-tuning and reinforcement learning.

metrics.help lists the most common ML training metrics, and shows graphs for what a healthy vs unhealthy progression looks like. You can also paste your log output to get a quick read on your current step.

4 months ago 0 0 1 0
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KL Divergance? Gradient Norm? Clip Ratio? I keep forgetting what these ML metrics mean and what to look for in my training runs.

Since I couldn't find a central resource with simple explantations, I created one.

4 months ago 1 0 1 0
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Prompet — Teaching AI to Draw An AI experiment: teaching a VLM to draw using it as both teacher and student.


So I wired up a RL loop where Qwen3-VL (8B) created SVG illustrations of cute pets, then rated those illustrations (as PNG images) on various criteria.

Did this lead to better illustrations? YES IT DID!

Check out the write up and the examples (the good, the bad, and the ugly) on prompet.ai

5 months ago 0 0 0 0

Can an AI model teach itself to draw?

I was experimenting with reinforcement learning on small(ish) models, and had a fun idea: If a small vision-language model can generate SVG illustrations, can it also "look" at the illustrations and rate their quality?

5 months ago 0 0 1 0

I expect it to be obsolete soon when this feature is available natively, but it's a fun project nonetheless :)

5 months ago 1 0 0 0
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AI Sessions Share AI coding sessions

Re sharing, I was inspired by your mention of amp's share function and created aisessions.dev to host codex/claude/gemini sessions. Comes with a CLI tool to lists sessions for a direct upload. Example: aisessions.dev/t/5o8g14EGC-...

5 months ago 1 0 1 0
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HUMANS.md - notes on AI assisted coding Bite-sized, practical lessons from coding with AI agents like Claude Code, OpenAI Codex, and others.

"How does that work again" is something that I've been using a lot, and also a variation of it "How did we get here" where the agent will play archeolgist and analyze the git history.
I've been sharing some of what works for me on humans.md

6 months ago 2 0 0 0
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Six years off stage I realized today it's been six years since my last conference talk at WordCamp Kathmandu 2019. I used to make a point of speaking at least once a year – it took a lot of work to prepare, but the energy in the room and the conversations afterward always made it worthwhile. Covid interrupted that streak and I somehow never picked it back up. I really do miss it.

Six years off stage

I realized today it's been six years since my last conference talk at WordCamp Kathmandu 2019. I used to make a point of speaking at least once a year – it took a lot of work to prepare, but the energy in the room and the conversations afterward always made it worthwhile. Covid…

9 months ago 0 0 0 0
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Comparing AI coding agents with a real task

I threw an issue from a side project at 6 AI tools: Claude Code, OpenAI Codex (the CLI version), Factory.ai, Devin, Jules, and All Hands. The task was a combined bug fix + feature…

yoav.blog/2025/06/10/comparing-ai-...

10 months ago 0 0 0 0