Magnus Müller
@mamagnus00
Founder of @Browser_use (W25)
If you build AI agents 1 step consumes 10k input tokens with less than 250 output tokens. So if you optimize for - speed: reduce output tokens - cost: reduce input tokens - reliability: don't just put more into context (performance can drop), but build clever systems around…
Cracked founder looking for tech cofounder this week in Zurich
The madness wrapped up 14 July. On the 15th I fired up the co-founder dating again. Today I had a 15-min chat with @mamagnus00. He told me to fly to Zurich this week to meet people.
Easy way to get around some paywalls. 1. Inspect 2. Delete 3. Zoom out
Context Rot Great title for a report, but even better insights about how increasing input tokens impact the performance of top LLMs. Banger report from Chroma. Here are my takeaways (relevant for AI devs):
When your job is to improve the product, but you are addicted to optimizing internal tools to analyze the product. Tomorrow, I will just go and fix one task after another. Which prompts do you want to work?

Cursor slack bot is insane for internal tools. 1. Feature requests from colleague via slack 2. Copy & Paste to @cursor_ai slack bot 3. View PR and Push to main




I like the name of the new AWS service - @browser_use
AWS just launched service called @browser_use😮 You know you are solving a real problem when AWS copies your name👀 Let the games begin🔥
Whats the current score?
My CEO sends me his requests on X directly and we discuss them publicly. #buildinpublic
Can you fine-tune our own model till tomorrow?
We compared Kimi K2 from @GroqInc with O3 from @OpenAI on @browser_use (K2 on top) K2 is lightning fast on @GroqInc ⚡️⚡️⚡️
Only Frontend?
Probably 95% of Frontend work can just be vibecoded at this point. I wouldn’t recommend spending too much time learning it. Instead focus on Backend and Infra.
Record and Automate
Workflows = Mad Libs for adults "Analyze the ___ market in ___ region" chef's kiss! Watch how easy it is 👇
We compared Kimi K2 from @GroqInc with O3 from @OpenAI on @browser_use (K2 on top) K2 is lightning fast on @GroqInc ⚡️⚡️⚡️
Who wants to get a massage?
healthy working environment is when CEO is massaging the employees @browser_use
Its merged browser use can now scroll in different UI elements loom.com/share/5ce071d6…