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Kyle Jeong

@kylejeong • 8,504 subscribers

growth engineering @browserbase | also @vestucla @kp_fellows math/cs @ucla

Shorts

we built blazing fast computer/browser use with Jev + Stagehand. this task cost $0.001 and executed at near instant speed (in a remote browser btw) the loop: observe the page, send a11y tree as state + actions as questions, Jev decides the next action, then Stagehand executes it.

we built blazing fast computer/browser use with Jev + Stagehand. this task cost $0.001 and executed at near instant speed (in a remote browser btw) the loop: observe the page, send a11y tree as state + actions as questions, Jev decides the next action, then Stagehand executes it.

71,304 views

I built JevSearch, search the web & validate your results with Jev. Give a query and selection criteria, use Browserbase search to get the t25 results, then Jev scores and returns the t5 results. Jev often chooses urls outside of the initial top 5 as more relevant.

I built JevSearch, search the web & validate your results with Jev. Give a query and selection criteria, use Browserbase search to get the t25 results, then Jev scores and returns the t5 results. Jev often chooses urls outside of the initial top 5 as more relevant.

60,133 views

Before Kubernetes, engineers could get paged to manually scale infra at any time, even Christmas. In 2014 Google open sourced K8s, which now power a huge percent of the world's cloud infra. I wrote a blog about it, with fully interactive visualizations.

Before Kubernetes, engineers could get paged to manually scale infra at any time, even Christmas. In 2014 Google open sourced K8s, which now power a huge percent of the world's cloud infra. I wrote a blog about it, with fully interactive visualizations.

300,851 views

Instinct is an invite-only personal assistant meant to truly understand you and what you’re working on. It has a built-in secrets vault, is very good at using a computer, and can purchase items, all through an interface you already know and love: the Messages app. After months of vague investor posts hyping the product, Instinct recently came out of stealth and announced a round at $2.5 billion, the same valuation as Linear, which has been around for seven times longer.

Instinct is an invite-only personal assistant meant to truly understand you and what you’re working on. It has a built-in secrets vault, is very good at using a computer, and can purchase items, all through an interface you already know and love: the Messages app. After months of vague investor posts hyping the product, Instinct recently came out of stealth and announced a round at $2.5 billion, the same valuation as Linear, which has been around for seven times longer.

44,909 views

OpenClaw can use Autobrowse to create and iteratively improve a Skill for any workflow. In this Craigslist extraction example we found a 68% speed up and 91% cost savings in 5 iterations. Halfway through, the agent found an exposed endpoint to speed up page navigation.

OpenClaw can use Autobrowse to create and iteratively improve a Skill for any workflow. In this Craigslist extraction example we found a 68% speed up and 91% cost savings in 5 iterations. Halfway through, the agent found an exposed endpoint to speed up page navigation.

108,724 views

when i joined the growth team i didn’t know literally everything was gonna grow tech bro feats of strength pt 2 first time trying 275, got it for 3 @ 161 bw

when i joined the growth team i didn’t know literally everything was gonna grow tech bro feats of strength pt 2 first time trying 275, got it for 3 @ 161 bw

30,210 views

"yeah bro I'm a Software Engineer specializing in model training and behavior at Mercor/ScaleAI"

"yeah bro I'm a Software Engineer specializing in model training and behavior at Mercor/ScaleAI"

51,691 views

i made an app that disables your keyboard if you have bad posture

i made an app that disables your keyboard if you have bad posture

12,553 views

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we reverse engineered astra's computer use and made it 2x faster.
0:28
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we reverse engineered astra's computer use and made it 2x faster.

Kyle Jeong

194,990 views • 1 month ago

Hermes Agent can use Autobrowse to make better browser skills. In this HN example, 2 iterations take us from: 102 seconds -> 35 23 turns -> 8 $1.46 -> $0.28 Instead of clicking step by step it decides to eval JS directly on the page and save that workflow to a skill.
0:24
kylejeong's profile picture

Hermes Agent can use Autobrowse to make better browser skills. In this HN example, 2 iterations take us from: 102 seconds -> 35 23 turns -> 8 $1.46 -> $0.28 Instead of clicking step by step it decides to eval JS directly on the page and save that workflow to a skill.

Kyle Jeong

320,528 views • 5 months ago

I built a centralized dashboard for UCLA students to see what's going on with the fires including live firemap, campus alerts, air quality, and even live feeds * all data sourced from .gov if you know ANYONE at UCLA send this to them. Link Below uclafire(.)org
0:24
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I built a centralized dashboard for UCLA students to see what's going on with the fires including live firemap, campus alerts, air quality, and even live feeds * all data sourced from .gov if you know ANYONE at UCLA send this to them. Link Below uclafire(.)org

Kyle Jeong

666,110 views • 1 year ago

this is the only bench i can still beat anthropic at incline barbell 245lbs x 5 @ ~165bw
0:28
kylejeong's profile picture

this is the only bench i can still beat anthropic at incline barbell 245lbs x 5 @ ~165bw

Kyle Jeong

136,866 views • 6 months ago

Hermes Agent by Nous Research natively integrates with Give Hermes any URL and find a skill for it in our catalog, or create your own. Watch it find the NASA picture of the day for me.
0:29
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Hermes Agent by Nous Research natively integrates with Give Hermes any URL and find a skill for it in our catalog, or create your own. Watch it find the NASA picture of the day for me.

Kyle Jeong

92,078 views • 5 months ago

i was reading through Modal's glossary to better understand how GPUs work. but what better way to learn than a visualization? so I had gpt 5.6 sol build an H100 in three.js based off the glossary. play around with it at
0:21
kylejeong's profile picture

i was reading through Modal's glossary to better understand how GPUs work. but what better way to learn than a visualization? so I had gpt 5.6 sol build an H100 in three.js based off the glossary. play around with it at

Kyle Jeong

38,193 views • 2 months ago

We just made Astra's computer use 2.5x faster with Stagehand. Astra works by executing code against the a11y tree, we built a translator that turns Astra's playwright commands into Stagehand. Astra chose to batch the entire logo into one command and one-shotted it.
0:39
kylejeong's profile picture

We just made Astra's computer use 2.5x faster with Stagehand. Astra works by executing code against the a11y tree, we built a translator that turns Astra's playwright commands into Stagehand. Astra chose to batch the entire logo into one command and one-shotted it.

Kyle Jeong

24,608 views • 1 month ago

i was curious how much faster gpt 5.6 sol on Cerebras actually was but didn't know exactly how to visualize it. then it hit me, all roads lead back to the language balls. at 750tps it's WAY faster than 5.6 sol served on their infra & AWS.
0:22
kylejeong's profile picture

i was curious how much faster gpt 5.6 sol on Cerebras actually was but didn't know exactly how to visualize it. then it hit me, all roads lead back to the language balls. at 750tps it's WAY faster than 5.6 sol served on their infra & AWS.

Kyle Jeong

35,244 views • 2 months ago

I built a museum for AI interfaces. See how our interactions with AI have evolved at
0:26
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I built a museum for AI interfaces. See how our interactions with AI have evolved at

Kyle Jeong

29,914 views • 2 months ago

i took roughly a month off (on accident) due to traveling/moving to sf but still retaining some strength 100kg (~220lbs) for 6 on incline @ 158bw
0:23
kylejeong's profile picture

i took roughly a month off (on accident) due to traveling/moving to sf but still retaining some strength 100kg (~220lbs) for 6 on incline @ 158bw

Kyle Jeong

29,569 views • 2 months ago

i use chatgpt to learn almost everything, but i always wish i could fork chats and go down rabbitholes on things without clogging context so i built it, powered by TANSTACK and Convex
0:41
kylejeong's profile picture

i use chatgpt to learn almost everything, but i always wish i could fork chats and go down rabbitholes on things without clogging context so i built it, powered by TANSTACK and Convex

Kyle Jeong

81,596 views • 11 months ago

I built /schedule, but with access to your authenticated accounts in a secure browser. Using the Browserbase /cookie-sync skill, I saved my local browser cookies, and injected them into the remote browser in our schedulable Functions. The opportunities are endless, build Crons with CC to do ANYTHING a human can.
0:21
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I built /schedule, but with access to your authenticated accounts in a secure browser. Using the Browserbase /cookie-sync skill, I saved my local browser cookies, and injected them into the remote browser in our schedulable Functions. The opportunities are endless, build Crons with CC to do ANYTHING a human can.

Kyle Jeong

49,463 views • 7 months ago

i built a site to help you understand frontier models and their architecture, in the style of an evidence board. see it at
0:24
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i built a site to help you understand frontier models and their architecture, in the style of an evidence board. see it at

Kyle Jeong

16,901 views • 1 month ago

there's no excuse to be unemployed, even browser agents are getting jobs with Stagehand 🤘 & Browserbase, you can spin up concurrent browser sessions to apply to infinite jobs get yourself (and/or your browser agents) a job with our templates
0:34
kylejeong's profile picture

there's no excuse to be unemployed, even browser agents are getting jobs with Stagehand 🤘 & Browserbase, you can spin up concurrent browser sessions to apply to infinite jobs get yourself (and/or your browser agents) a job with our templates

Kyle Jeong

61,980 views • 10 months ago

Hermes agent supports Browserbase to browse and interact the web just like a human. You can add it when you setup your agent, or add it with Watch it add deodorant to my amazon cart, something much needed for engineers around the world.
0:23
kylejeong's profile picture

Hermes agent supports Browserbase to browse and interact the web just like a human. You can add it when you setup your agent, or add it with Watch it add deodorant to my amazon cart, something much needed for engineers around the world.

Kyle Jeong

28,034 views • 6 months ago

Stagehand is getting really fast ... See how Llama 3 70b on GroqInc outperforms OpenAI 4o in speed on this form fill 54.48 seconds for groq VS 62.75 for 4o🤯
0:57
kylejeong's profile picture

Stagehand is getting really fast ... See how Llama 3 70b on GroqInc outperforms OpenAI 4o in speed on this form fill 54.48 seconds for groq VS 62.75 for 4o🤯

Kyle Jeong

26,829 views • 1 year ago

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