Before you sell to, join or invest in Klavis AI
MentionFox check on Klavis AI: only 1 source on file so far (checked 6 November 2026). Run a full check before you rely on it. mentionfox.com/c/funding/yc-klavis-ai
Check Klavis AI before you sell to, join or invest Free, no sign-up: every record on file, each linked to its source.
Powering frontier AI labs with complex, long-horizon agentic coding and tool-use data.
Klavis AI is a Y Combinator company in the Spring 2025 batch. Its directory entry describes it as: RL environments and training data for frontier AI labs. The founders listed are Xiangkai Zeng (Founder/CEO), Zihao Lin (Founder/CTO) (Y Combinator directory entry, April 10, 2025).
Sell to companies like Klavis AI? Enter your website and see 10 with a filed reason to buy from you this month. Free.
Opens in a new tab. No signup.
New accelerator entry · 2025-04-10 · the record
Pitching, partnering or investing alongside them? See who really runs and owns Klavis AI.
Free to see. No signup.
More on Klavis AI and the records around it.
Get an email when Klavis AI changes status, grows its team or files a funding notice. One email first to confirm; nothing else until you click it. At most one a day, one click to stop. Free for up to 3 companies.
We'll show it in your MentionFox inbox when Klavis AI raises, hires or launches. No email unless you switch it on.
Watch Klavis AI →Get the full cited report on Klavis AI
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
A Full Report on Klavis AI: verified, sourced, every claim cited, ready in a few minutes. See pricing.
Saved here on this device in the meantime, so nothing is lost either way.
Powering frontier AI labs with complex, long-horizon agentic coding and tool-use data.
Klavis AI lists 1 open role on its directory entry.
Checked away from the directory entry. Neither line below comes from the company's Y Combinator page.
Klavis AI provides live environments for training AI agents. Powering frontier AI labs with real world MCP environments and complex, long-horizon agentic tool-use data.
The title and description the site itself served, answering 200. Not a cached copy and not the company's directory entry — what was live when we asked.
Counted only where a thread links to this company's own site, announces it by name on that forum, or names it beside its own Y Combinator batch. A thread whose title merely carries the words is not counted — a name is not an identifier, and 1 such thread was left out on that basis. Hacker News is not us, and nothing above is our opinion of the company.
Co-Founder at Klavis AI 1. Senior Software Engineer at Lyft, tech lead at Lyft recommendation team and Nordstrom data infra team, building product supports millions of users in the last 5 years. 2. CS MS from Northeastern University, Bachelor of Engineering in Computer Science and Technology from Beihang University. 3. The President of the Computer Science Student Council (CSSC) at Beihang University. Research Experience at the NLP Lab and Internship at Baidu.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
A Full Report on Klavis AI: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Klavis AI covers
Plus the sections for what you are deciding, which you pick after ordering.
A real finished report, first screen. Opens in a new tab.
Not ready to order yet? Keep this snapshot.
Sends this preview to you once; we won't add you to any list
You land back on this company when you are in.
Not ready to upgrade? Keep this one in view instead.
Watchlist Klavis AIYou get an alert in MentionFox the next time this company shows up.
If you're behind Klavis AI: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. GetFoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.
Sourced from the company's Y Combinator directory entry, from the company's own site, read directly on 2026-09-27 (klavis.ai), and from Hacker News, where 2 threads met the matching rule stated beside the count.
Each opens in a new tab, filled in for Klavis AI. With no account yet, you sign up free and land on the result.
Share the news. Sharing needs no account.
https://mentionfox.com/funding/yc-klavis-ai