Jesse Zhang (@thejessezhang) / X

Jesse Zhang

222 posts

Jesse Zhang

@thejessezhang

CEO @DecagonAI

SF Bay Area

Joined October 2021

Pinned
Jesse Zhang
@thejessezhang
Jan 28
Excited to share that @DecagonAI has raised a Series D, tripling our valuation to $4.5B in less than six months! Our funding is a testament to how a fundamentally different approach to product can win vs the incumbent strategies. From the beginning, our focus has been to
decagon.ai
Decagon’s $250 million commitment to the AI concierge future
Decagon has raised a fresh $250 million in funding, led by new investors Coatue Management and Index Ventures.
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Jesse Zhang
@thejessezhang
Mar 2, 2023
With the launch of the new #ChatGPT API, I wanted to experiment with language-to-actions, and made a toy app where you use language to build a 3D city! 🌆 This demo is fairly simple but you can imagine eventually just speaking to PowerPoint to auto-build your slides. [1/4]
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Jesse Zhang
@thejessezhang
Jan 17, 2023
Had a ton of fun this weekend building a demo project: PapersGPT. It enables you to feed any scientific papers into GPT to give it deep customized knowledge. Moreover, it’s a proof-of-concept UX of the end goal of connecting arbitrary data. Demo: jessezhang.org/llmdemo [1/4]
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Jesse Zhang
@thejessezhang
Jun 23, 2025
Today, I’m thrilled to announce @decagon's $131M series C at a $1.5B valuation. The round was co-led by @a16z and @Accel, bringing our total funding to $231M.
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Jesse Zhang
@thejessezhang
Mar 20, 2023
My project is now publicly available to try out! Thx to everyone that helped test: builtbyjesse.com 🎇 I added GPT-4, so feel free to use it. tl;dr it's a nice UI to play around with all the new AI/LLM tech and deploy custom variants. Lots more to come! 😃
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Jesse Zhang
@thejessezhang
Mar 9, 2023
My next passion project is going to be a culmination of some of my projects this month. The scope is a bit larger than a weekend so in the meantime, I wanted to share an animation for it since I like making landing pages 🙂 This is all pure CSS! I'll deploy it on @vercel soon.
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Jesse Zhang
@thejessezhang
Feb 16, 2023
You can now connect your entire Google Drive to an LLM with 5 lines of code! It's been great seeing all the new loaders folks create on Llamahub.ai🦙 Props to @ravithejads for merging this one - see the site for how to use other cool ones👇[1/3]
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Jesse Zhang
@thejessezhang
Oct 15, 2024
Beyond excited to announce Decagon's $65M Series B led by @aaref from Bain Capital Ventures, with @eladgil, A*, Accel, BOND Capital, and more. 🎉 This brings our total funding at @DecagonAI to $100m. Huge thank you to everyone who continues to support us!
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Jesse Zhang
@thejessezhang
Jan 28, 2023
I’ve managed to add podcasts to my GPT demo! You can insert any .mp3 file; the AI will parse it and have that extra knowledge when you chat with it. Check out the examples of @lexfridman & @theallinpod! e.g. It picked up on the debate between @DavidSacks and @jason 😄 [1/4]
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Jesse Zhang
@thejessezhang
Nov 25, 2024
Today, we're publishing the AI Agent Engine! 🙌 It's a distillation of our learnings from many successful deployments of AI agents at enterprises. Ultimately, this is what's required for a successful implementation of AI agents. decagon.ai/resources/ai-a…
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Jesse Zhang
@thejessezhang
Mar 14, 2023
My last few projects have led up to this: an elegant app that lets you build highly customized #ChatGPT's with your own data and prompts. It's still pending a name but I've put it up at builtbyjesse.com! 🎊 I've made a longer tutorial/walkthrough which I'll link below 👇
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Jesse Zhang
@thejessezhang
Mar 31, 2023
Assessing how good a model or prompt is has always been tricky. My friend Sam and I have made it so you can run your own evals right from the browser using the new @OpenAI evals library! Just drag in a csv file of your samples, and hit "run" 🏃
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Jesse Zhang
@thejessezhang
Jan 18, 2023
There should be a @vercel for deploying simple Python APIs! (Is there something good people use?) Spinning up a Flask server on AWS feels like so much work for a demo after getting used to Vercel for JS. I'm trying their Serverless Python Runtime but my app seems a bit too big 😶‍🌫️
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Jesse Zhang
@thejessezhang
Oct 29, 2024
OpenAI wrote a great post on how they've partnered with us at @DecagonAI to ship performant and accurate AI agents! This post dives into some of the cool engineering challenges we solved. So many creative ways to use LLMs!
Delivering high-performance customer support
From openai.com
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