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San Francisco, CA
Joined February 2010
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Pinned Tweet
Applications for the YC Winter 2027 batch are now open!
Apply by November 2: ycombinator.com/apply
Y Combinator retweeted
Introducing @SherpaLabsAI: we build RL environments for high-value knowledge work, starting with finance, coding, and quant research.
Built by industry experts, our environments recreate long-horizon workflows we believe are critical to AGI. On our finance and coding benchmarks, top models pass just ~6% and ~52% of trials. Links in 🧵:
Y Combinator retweeted
Meet Antigen Assets.
Assets gives your security agent superpowers. Antigen can now find stale deployments that access your core systems and triage the effects of new CVEs the moment they drop.
- It understands how every service connects
- Builds a live map of your entire system
- Connects AWS, Okta, GitHub, Vercel, and many others
Every time your infrastructure changes, it runs a targeted pentest, like an expert red-team who’s spent hours studying your architecture.
Y Combinator retweeted
We're out of stealth! @antropirobotics builds fully autonomous factories for metal parts.
Our goal: US quality, China prices, delivery under 24 hours.
In 6 months, we built our first factory, started shipping, and turned profitable. All bootstrapped.
antropi.shop
Y Combinator retweeted
Introducing free People Data for ChatGPT & Claude.
Give your AI agents access to 270M+ company & people records in Alexandria.
Get 1,000 free credits a month to build prospect lists, find work emails, & research job history with the Firecrawl plugin.
firecrawl.dev/alexandria/cat…
Y Combinator retweeted
runinfra coding plan is live
the fastest open models in claude code, codex, opencode and 16 more agents. from $10 a month
more usage per dollar and faster tok/s than other providers. both, not one or the other
DeepSeek V4.1 Flash, GLM 5.3, Ornith 1.5 122B, Qwen3.8 27B and more. one sub
up to 378 tok/s. up to 99.3% cache hit. cached input from $0.01 / 1M, so the plan goes further
$10 → ~$12 of usage
$29 → ~$35
$99 → ~$119
limits reset every 5 hours and every week. hit one and you pick: credits, or free standby. never a dead stop mid-task
setup is one prompt -- paste it into your agent and it wires itself
runinfra.ai/pricing?plan=cod…
Y Combinator retweeted
Today, we're announcing that our contract with the U.S. Navy has quadrupled to $300 million to improve fleet readiness.
Gecko’s AI and robotic technology is able to save up to $8 million in repair costs alone per ship, while also identifying structural issues up to 50 times faster than traditional methods.
By reducing inspection times from months to days we are able to get ships back to sea quicker.
This fourfold expansion will accommodate rapid robotic deployment across the Navy and is one of the strongest public endorsements yet of operational AI and robotics in defense.
Y Combinator retweeted
Greatest unlock for any startup founder or anyone who has to get in touch with the right people
Happenstance is "if LinkedIn and Claude and ChatGPT had a baby." - @rubenhassid
How Ruben finds the warm path to exactly who he needs across 800,000+ people in his network:
Y Combinator retweeted
Can your idea become the talk of the town?
We modelled how thoughts and ideas spread in human societies by putting 2,721 simulated personas representing the US general population in an artificial city. Each persona has its own schedule, beliefs, and social circle.
Sow an idea in any persona’s mind, watch it take hold and go viral, or see it fizzle out if no one takes interest in it.
Compete with your friends and colleagues to see whose idea can win over the most adopters, get a high score and put your name on the leaderboard. Link below.
Y Combinator retweeted
today, we're launching the General Video Agent.
GVA edited this entire launch video. 👇🏽
public beta is now live at motion.so/gva. no waitlist.
comment “GVA” for 1,000 free credits.
examples & capabilities in thread 🧵
Y Combinator retweeted
Introducing Probe: The Agent-Native Research Stack.
Our goal is simple: help AI/ML teams run better experiments, faster.
Teams run research with agents now, but their work is disordered. They lose hours verifying what their agents actually did, managing environments and compute, and re-explaining company context their agents should already know.
So we rebuilt the research stack from the ground up for agent-driven research.
Probe brings core research tools, shared context from past experiments, and visibility into each run together in one platform.
Teams can spend less time setting up infrastructure, supervising agents, and catching teammates up, and more time testing ideas.
If you’re a research lab, scale your research team without sacrificing speed.
If you’re an AI/ML team, stand up a research capability with the infrastructure of a frontier lab.
See Probe for yourself: useprobe.ai/
Y Combinator retweeted
Today we are launching @ObsessionDB, the realtime data warehouse for agents.
Your agents are hungry for data. Feeding them is getting expensive.
Your data warehouse wasn't built (or priced) for that.
We learned this the hard way. We scaled our last company to petabytes on ClickHouse and watched the infra bill go vertical.
So we built @ObsessionDB . The ClickHouse engine, rebuilt with compute and storage separated, so your infra scales with your agents instead of your bill.
100x faster and 20x cheaper than Snowflake and Databricks. Already live, processing trillions of rows a day.
Agents are just getting started...
Y Combinator retweeted
We built TRAIL, AI agents for the engineers who sign off on mine safety.
Our early deployments have surpassed initial expectations, and we have $1.7M booked this year.
Today, we're launching TRAIL for global adoption: ycombinator.com/launches/Vpq…
Y Combinator retweeted
AI-generated fake documents grew 500% last year, and humans can no longer tell the difference
That's why we’re launching Extend Verify, the first document fraud detection API built for agents
Verify catches the fastest growing types of document fraud, including:
- fully AI-generated documents
- localized AI edits (down to a single modified character)
- patched text, overlays, and in-painting from Photoshop, PDF editors, and coding agents
- digital tampering after a document was signed
- and many more
In our internal evals, Verify detected over 96% of AI-generated and tampered documents.
Verify is available today: extend.ai/verify/request-acc…
Y Combinator retweeted
📣 The wait is over. We've been teasing October 19 for weeks, and today we're finally showing you what we've been building.
Meet the new JustAI: your entire marketing workflow, powered by one Marketing Harness. 🚀
getjust.ai/launch?utm_source…
Y Combinator retweeted
We're excited to announce Exa 3.0!
A huge number of improvements:
- Bigger, better embeddings model driving core search
- Higher quality highlights with further reduced token counts
- Lower latency, cheaper search type "Lite"
- Better reranking, particularly across long documents
- Even better real-time news, sports, weather, and market data
- Laundry list of other stuff
Let us know what you think! 🫡
Introducing Exa 3.0: our largest ever improvement to search quality.
Exa is now #1 on every benchmark we tested, from public evals to verticals like coding and GTM intelligence.
It's the result of multiple research breakthroughs 🧵
