Klavis AI
YC X25 · Active · High Quality Coding & Agentic Data for AI labs
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
 DatacurveShared: quality coding, frontier, dataActiveAI | AI | Active | YCW24 |
 MangoDeskShared: long horizonActiveAI | AI | Active | YCS25 |
 WebhoundShared: long horizon, qualityActiveAI, Data | AI, Data | Active | YCS23 |
 PolymathShared: long horizon, dataActiveAI | AI | Active | YCW26 |
 AviroShared: long horizon, labs, frontierActiveAI | AI | Active | YCX25 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
 SynthShared: long horizon, codingActiveAI, Devtools | AI, Devtools | Active | YCF24 |
 Lambda RoboticsShared: powering frontierActiveAI, Devtools | AI, Devtools | Active | YCF26 |
 MillionShared: long horizon, codingActiveAI, Devtools | AI, Devtools | Active | YCW24 |
 KabilahShared: high quality, agenticActiveAI | AI | Active | YCW24 |
 PulseShared: high qualityNot statedOther | Other | Not stated | Antler2023 |
Also from X25 in AI
All of X25
Founders
- Xiangkai ZengFounder/CEO
- Zihao LinFounder/CTO
About Klavis AI
Powering frontier AI labs with complex, long-horizon agentic coding and tool-use data.
- YC batch
- X25 · Spring 2025
- Status, per YC
- Active
- Category
- AI
- Team size
- 3
- Founded
- 2025
- Checked
- 1h ago
Klavis AI: questions
Which YC batch was Klavis AI in?
Klavis AI was in Y Combinator's Spring 2025 batch (X25).
Is Klavis AI still active?
Y Combinator lists Klavis AI as active.
Who founded Klavis AI?
Klavis AI's founders, as listed on its YC page: Xiangkai Zeng (Founder/CEO), Zihao Lin (Founder/CTO).
Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.