General Partner @HF0. First to invest in @OpenRouter.
Bay Area
Joined October 2011
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We were the first firm to invest in @OpenRouter.
When @alexatallah joined @hf0, he had already built a $13B company. He knew what he was doing. He didn't need help.
Alex joined HF0 because we're not an incubator. We don't work with founders who need help.
HF0 is a family...
We live under one roof. We eat around one table. We work tirelessly in pursuit of the singular ideal:
That by removing every distraction, and relentless and fearlessly training one's energy on the most important problem in each moment - massive, seemingly impossible feats of entrepreneurship become tractable.
OpenRouter's journey embodies the fruition of this philosophy.
Just 3 years ago, @alexatallah presented OpenRouter at HF0 demo day. Now, he's here.
evan sc / 柳爱华 retweeted
OpenRouter is officially part of Stripe!
No single lab will build all the intelligence the world needs. We’re building OpenRouter so every developer and business can choose the best of it, wherever it comes from.
Every model stays on equal footing. With Stripe, we can bring that choice to the millions of businesses that run there.
Long term, we aim to connect the rails that move the economy’s money with the rails that move its intelligence, and build the best developer experience for both.
OpenRouter is officially part of @stripe today!
More than 10 million developers and companies use OpenRouter, and as they build with more models across more workloads, they need control over what it costs and where their data goes.
OpenRouter has built that operating infrastructure to help run AI across every model and provider, with access to new models, uptime through outages, and enforced spend and data policies for each team.
Joining Stripe, which has spent years running critical infrastructure for businesses around the world, means we can build it faster and support companies at every scale.
Our commitment to neutrality stays the same. Models and providers compete on quality, reliability, and price. You decide what works for your business.
evan sc / 柳爱华 retweeted
Introducing @FishAudio Live 3: a full-duplex voice model that listens, says "mm-hmm," and knows when to shut up.
Enterprise? Book a demo for your free custom agent: s.fish.audio/vxhgs6
Reply with your use case - we'll build it free for the first 1,000 people.
Josh is visionary. Everyone else is talking about it, he is actually doing it at Coframe.
The internet is dead. We’ve raised $35M total funding led by Khosla and Hanabi to bring it to life.
@coframe is a growth engine for your website/ads/more which tests, personalizes, & learns 24/7.
It’s working. Dropbox increased conversion by 158%. Replit, 410%. Cash App, 60%.
evan sc / 柳爱华 retweeted
Boardy is handling applications for the most selective founder program on the planet.
DM @boardyai if you want to get into @hf0’s next batch.
HF0 just got even more selective, and applications for their next batch close this Sunday.
In 2027, @hf0 is going to work with fewer new teams than ever before, and my job is to help find them.
Two teams in the current batch have already crossed $100M in annualized revenue, and we’re still a month out from demo day.
Founders keep coming back with the same companies.
@OpenRouter completed two batches, while AIOS is now in its third consecutive batch and has recently passed $400M ARR.
The Boardy team came back for the current batch too.
Returning alumni are filling more spots, and HF0 is moving from three batches a year to two. Getting into the next cohort will be more competitive than ever.
If you’re building something you think HF0 should know about, I want to hear about it.
I helped bring @fyxer and @doctronic into the residency, and I referred more teams into the fall batch than anyone else.
Now I’m doing it again.
If you’d like to apply to HF0’s next batch, comment “HF0” and I’ll walk you through the application.
Tag someone who should apply.
Excited to see where this will take our society.
Live out your wildest fantasies on Yam (YC F26): AI-powered romance simulation games for women, built by women 💃
Walk into a dating villa as the new bombshell. Star in your own K-drama. Fall in love with your enemy turned lover. Describe a world and who you want to be, and Yam brings it to life.
- Beta players have spent collectively ~1 million hours on our platform
- Yam girlies play on average 3 hrs/day.
Build your world on yam hiyam.ai/
evan sc / 柳爱华 retweeted
One month's progress for a successful startup. The previous month's towering revenue number now looks small, and the early part of the graph is starting to read as flat. This is what exponential growth feels like.
The Product™ still doesn't exist.
How can you tell? By the fact that so many people who have money still under-index in basic areas like happiness, relationships, and health.
Why? Because The Product™ doesn't exist. Drugs exist. Lavish parties exist. Yachts and boutique hotels and private estates and matchmakers exist.
But somehow, in 2026, The Product™ still doesn't exist.
This is my prediction for how AGI will change the world. Not extermination. Not instant utopia. But rather the final inevitable roll out of The Product™.
As much of it as you want, for as long as you can afford.
And God willing, at a price that becomes more and more affordable to a higher and higher percentage of sentient beings as (t → ∞).
The age of the AI reality show has finally begun.
Your AI coworkers now have an office.
@getskydive is open to everyone. Build a team of agents, watch them work in a 3D office, and hand them tasks over Slack, email, iMessage or the web.
Claim your company’s domain to put your office on the map. They work for free this week.
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evan sc / 柳爱华 retweeted
torii 2.0 is out.
i built this to manage my own growing agent fleet without ecosystem lock in
here's what's new:
- voice notes, images, video, pdfs. voice notes are transcribed on your device, and agents send files back
- opencode now runs any openai-compatible model you add as an account
- agents make agents. tell the home chat "make me an agent for x" and it will spin it up with its own environment
- one-tap update. update torii from telegram and the agents keep working while it restarts
still open source, still your machine, still your subscriptions.
github.com/pnkfluffy/torii
evan sc / 柳爱华 retweeted
The biggest lie in AI is that the future belongs to one winner.
Every technology wave starts with one company promising that one walled garden is all you'll ever need. And every time, market forces and creativity break the walls down.
I cofounded OpenSea and now OpenRouter around the opposite bet: humanity will refuse to be locked in.
Intelligence was never meant to belong to one lab, one model, or one gatekeeper.
The future of AI is open, plural, and yours to choose.
Having a web mode for agents seems obvious but I still have no witnessed great implementations.. until now. @joshpxyne has been at the cutting edge of this space for a while, very cool step forward with agent mode.
evan sc / 柳爱华 retweeted
AI made building software easier than ever. Getting it to actually work inside a business? That's a different story.
Today we're launching @terminalio AI.
A forward deployed engineering team that builds, deploys, and scales AI systems inside real businesses.
More is possible. 🚀
been impatiently waiting for this moment...
Today we’re rolling out @dailyfun
We're making markets ridiculously fun to play, and we're just getting started.
Join our beta today.
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