Kevin Weil
About Kevin Weil
Kevin Weil is a product leader who spent most of his career at large technology companies. According to The Nature Conservancy's biography, he was president of product and business at Planet Labs and co-founded the Libra cryptocurrency. He also held product roles at Facebook's Novi (VP of product), Instagram (VP of product) and Twitter (SVP of product).
He joined OpenAI as Chief Product Officer in June 2024. Crunchbase lists him as CPO from June 2024 to October 2025, then as Vice President of Science. In that role he leads OpenAI for Science, an internal group aimed at scientific discovery.
His LinkedIn profile lists board seats at Cisco, Stoke Space and The Nature Conservancy, and a Lieutenant Colonel role in the US Army Reserve. Cisco announced his appointment to its board in May 2025. Crunchbase lists his education as Harvard University and places him in Kent, Washington. His X profile gives Portola Valley, CA.
Investor databases disagree on how many deals he has made. Crunchbase shows 12 investments, 0 lead investments, 0 exits and 0 companies founded. CB Insights counts 18 investments, PitchBook lists 32 and NFX Signal lists 35. The databases differ in what they include and when they were updated, so treat these as rough figures.
The record spans consumer and software companies. Tracxn dates his earliest recorded deal to 2019, a Series A in Superplastic. Crunchbase's AI investments run from 2023 onward.
He often invests alongside other angels and venture funds. For example, NFX Signal shows him in Laurel's Series C in June 2025 and Supabase's Series D in April 2025. Both rounds had many co-investors.
Crunchbase counts 12 AI investments since 2023. They include cside, Proximal, Born, Sabi, Omen AI, Chaos Labs, Elio Labs, Aitan, Laurel, Supabase and Vybe.
The most recent round on the Lounge deals desk is Sabi's $50M seed, announced in October 2026. Press coverage says Khosla Ventures led it, with Accel, Initialized Capital, DST Global, Collaborative Fund, Ascend and Kevin Weil taking part. Sabi is building a non-invasive brain-AI interface in a baseball cap.
Other dated rounds from public databases:
Chaos Labs raised its Series A in August 2024, per PitchBook and Crunchbase. Supabase's Series D was April 2025. Laurel's Series C was June 2025. CB Insights lists Elio's $21M Series A on July 23, 2026.
He has also worked with AI startups through his job. In a LinkedIn post, PerturbAI describes building a large brain dataset in collaboration with OpenAI for Science, led by Weil. That is a work collaboration and not an investment.
Weil has not published a thesis or an investing policy that we could find. The details below come from third-party databases and may be out of date.
On stage, Ask For Funding describes his deals as running from pre-seed to early-stage rounds. The Crunchbase and database entries above also include later rounds such as Series C and Series D, where he joined existing syndicates.
On sector, his recorded deals cover AI, developer infrastructure (Supabase), crypto analytics (Chaos Labs), life sciences and enterprise applications (Tracxn), and neurotech (Sabi). NFX Signal ranks him for pre-seed and seed consumer internet, social networks and social commerce, reflecting his Instagram and Twitter background. Tracxn says his investments are in the United States.
On check size, NFX Signal lists an investment range of $10K to $100K with a $50K sweet spot. This is a database estimate, not a statement from Weil. Because he runs a product organization at OpenAI, founders should expect limited time. Founders raising now should also check whether OpenAI's conflict rules affect a given pitch.
- Sabi: brain-AI interface built into a baseball cap; participated in the $50M seed led by Khosla Ventures, announced October 2026.
- Supabase: open-source backend platform for developers; invested in the Series D in April 2025.
- Laurel: AI company; invested in the Series C in June 2025.
- Chaos Labs: invested in its Series A in August 2024.
- Elio Labs: CB Insights lists a $21M Series A on July 23, 2026.
- cside, Proximal, Born, Omen AI, Aitan and Vybe: other AI investments listed by Crunchbase since 2023.
- linkedin.com/in/kevinweil
- crunchbase.com/person/kevin-weil
- x.com/kevinweil?lang=en
- nature.org/en-us/about-us/who-we-are/our-people/kevin-weil
- newsroom.cisco.com/c/r/newsroom/en/us/a/y2025/m05/cisco-appoints-kevin
- openai.com/index/openai-welcomes-cfo-cpo
- pymnts.com/personnel/2025/openais-chief-product-officer-to-lead-scienc
- signal.nfx.com/investors/kevin-weil
AI portfolio
Investing activity
Kevin Weil has made 12 investments according to Crunchbase. 12 of those investments since 2023 were in AI companies, including cside, Proximal, Born, Sabi and Omen AI.
Kevin Weil appears in 3 AI deals tracked by the AI Lounge deals desk, rounds totalling $80M. The rounds are mostly Seed, with a median round size of $15M and the largest at $50M. The most recent are Sabi (Seed, $50M, Oct 2026), Proximal (Seed, $15M, Sep 2026) and Aitan (Seed, $15M, Jul 2026).
Kevin Weil most often invests alongside Khosla Ventures, Collaborative Fund, Initialized Capital and DST Global, and the companies they back on AI Lounge are mostly in AI and Brain-computer interface for AI.
Deals
Frequently asked questions about Kevin Weil
Who is Kevin Weil?
He is a product executive and angel investor. He was Chief Product Officer at OpenAI from June 2024, then moved to lead OpenAI for Science. Earlier he held product roles at Planet, Instagram and Twitter, and he co-founded Libra.
What AI startups has Kevin Weil invested in?
Crunchbase lists cside, Proximal, Born, Sabi, Omen AI, Chaos Labs, Elio Labs, Aitan, Laurel, Supabase and Vybe. The most recent on the Lounge deals desk is Sabi's $50M seed in October 2026.
What check size does Kevin Weil write?
He has not stated one publicly. NFX Signal lists a $10K to $100K range with a $50K sweet spot, which is a database estimate.
What stage does Kevin Weil invest in?
Public databases show mostly pre-seed to early-stage deals, plus some later rounds such as Supabase's Series D and Laurel's Series C. Crunchbase shows no lead investments, so he usually joins rounds led by others.
How can founders contact Kevin Weil?
He is on LinkedIn at linkedin.com/in/kevinweil and on X as @kevinweil. No personal site or public pitch process turned up in our research, so a warm introduction is probably the better route.
Does Kevin Weil lead rounds?
Crunchbase records 0 lead investments. In the Sabi, Supabase and Laurel rounds, other investors led or took part alongside him.
Is Kevin Weil an angel investor?
Yes. Kevin Weil invests personally as an angel. Crunchbase counts 12 investments.
What AI companies has Kevin Weil invested in?
Kevin Weil's AI investments include cside, Proximal, Born, Sabi, Omen AI, Chaos Labs, Elio Labs and Aitan. The 3 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Kevin Weil based?
Kevin Weil is based in Kent, United States.
What stage does Kevin Weil invest at?
In the rounds tracked on AI Lounge, Kevin Weil has invested at Seed, with a median round of $15M.