Logan Kilpatrick
About Logan Kilpatrick
Logan Kilpatrick is the product lead for Google AI Studio and the Gemini API at Google DeepMind, where he works on tools that let developers build with Google's models. His X profile lists him as a member of technical staff working on Google AI Studio, the Gemini API and Kaggle. He grew up in Chicago and started college at De Anza College before studying at Harvard. One conference biography also lists Oxford.
Before Google he led developer relations at OpenAI, from November 2022 until March 2024. Earlier roles include machine learning engineering at Apple, open-source policy and software work with NASA, and a stint at The Walt Disney Company. He is also known as an advocate for the Julia programming language.
Crunchbase records no companies founded by him. His investing is done as an individual alongside his full-time role at Google DeepMind. He is not a fund manager.
Crunchbase counts 27 personal investments, with no lead investments and no IPO exits. That points to a follower or participant role in rounds rather than a lead role. Other trackers show smaller or different totals. PitchBook lists 21 investments and Tracxn lists 9, so the counts depend on the source.
Tracxn dates the start of his startup investing to 2024 with Guardrails AI. Its list of recent rounds includes Sophont (seed, September 2025), Nilo (seed, September 2025), Supermemory (seed, October 2025) and ego AI (seed, October 2025). PitchBook lists RadixArk as his most recent investment, in May 2026.
Tracxn reports that OpenPipe, which he backed, was acquired in September 2025. Crunchbase shows his exit count as 0, so treat exit data as inconsistent across sources. He has also appeared as a named angel in announced rounds, for example PromptLayer's $4.8M seed round, where he was listed as Product Lead for Google AI Studio.
Crunchbase shows 22 AI investments since 2023. The portfolio centers on developer tools, AI infrastructure and AI-enabled applications. Companies on Crunchbase's AI list include Hona AI, Friend, Unsloth AI, Second Nature Computing, Supermemory, Norm AI, Yutori, RadixArk, Guardrails AI, OpenPipe, Nilo and Command Code.
Crunchbase's investor list also includes The Interaction Company of California, Overworld, depthfirst and Worktrace AI. PitchBook names Poke and Humans& among his investments, and Tracxn names Sophont and ego AI. CryptoRank lists two crypto-related positions, Manifold Labs and OpenRouter, which suggests some interest in AI-adjacent infrastructure.
Crunchbase shows pre-seed and seed rounds, plus at least one Series A (depthfirst). Most of the rounds in his portfolio are seed or pre-seed. One aggregator describes his focus as developer tools and AI-enabled applications at pre-seed to seed. That fits the companies above.
Tracxn reports that his portfolio companies are in the United States. His personal site, logank.ai, is the public place to see how he describes himself. His site and the press profiles describe a preference for action and agency, but he has not published an investment thesis or a list of criteria for pitches.
No check size, fund size or stated pitch process is public. Founders should not assume he is open to cold pitches. His employer role at Google DeepMind may also affect which companies he can back, though no source describes any such policy.
- Guardrails AI: AI portfolio company on Crunchbase. Tracxn dates his first startup investment to 2024 with this company.
- OpenPipe: converts LLM prompts into models for product engineers. Tracxn reports an acquisition in September 2025.
- Supermemory: seed round of $2.6M reported by Tracxn in October 2025.
- Nilo: seed round of $4M reported by Tracxn in September 2025.
- ego AI: seed round of $6.7M reported by Tracxn in October 2025.
- Sophont: seed round of $9.22M reported by Tracxn in September 2025.
- RadixArk: Crunchbase lists a seed round. PitchBook lists it as his latest investment, in May 2026.
- Second Nature Computing: pre-seed round, shown as his latest investment on Crunchbase, alongside Kindred Ventures.
- Command Code: seed round listed on Crunchbase.
- Yutori, Unsloth AI, Norm AI, Hona AI and Friend: listed in Crunchbase's AI portfolio for him, with no round details public.
- crunchbase.com/person/logan-kilpatrick-3c5b
- crunchbase.com/person/19dbc6dc-8d97-47cb-ab67-c10817083c5b
- pitchbook.com/profiles/investor/592419-52
- tracxn.com/d/people/logan-kilpatrick/__KBmgRFAiGUnkk7GphPJoLNZwIixroha
- en.wikipedia.org/wiki/Logan_Kilpatrick
- ai.engineer/speakers/logan-kilpatrick
- techcrunch.com/2025/05/20/google-deepminds-logan-kilpatrick-is-coming-
- x.com/officiallogank
AI portfolio
Investing activity
Logan Kilpatrick has made 27 investments according to Crunchbase. 22 of those investments since 2023 were in AI companies, including Hona AI, Friend, Unsloth AI, Second Nature Computing and Supermemory.
Logan Kilpatrick appears in 2 AI deals tracked by the Lounge deals desk, rounds totalling $100M. The rounds are mostly Seed, with a median round size of $100M. The most recent are Command Code (Seed, $5M, Feb 2026) and RadixArk (Seed, $100M, Jan 2026).
Logan Kilpatrick most often invests alongside Preston-Werner Ventures, Dane Knecht, Enea and Luca Maestri, and the companies they back on Lounge are mostly in AI and AI Infrastructure.
Deals
Frequently asked questions about Logan Kilpatrick
Who is Logan Kilpatrick?
He is the product lead for Google AI Studio and the Gemini API at Google DeepMind and a former head of developer relations at OpenAI. He is also an individual angel investor based in Chicago.
Is Logan Kilpatrick an angel investor in AI startups?
Yes. Crunchbase counts 27 investments, 22 of them in AI since 2023. They include Supermemory, Unsloth AI, Yutori, Guardrails AI, OpenPipe and RadixArk.
What stage does Logan Kilpatrick invest in?
Crunchbase shows mostly pre-seed and seed rounds, plus at least one Series A (depthfirst). He has no lead investments on Crunchbase, so he appears to join rounds led by others.
What is Logan Kilpatrick's check size?
His check size is not public, and none of the sources we checked state one. Round sizes reported by trackers are the whole round and do not show his own amount.
How can founders contact Logan Kilpatrick?
His public channels are X at @OfficialLoganK, LinkedIn and his site logank.ai. He has not published a pitch process, so a short, specific message that relates to developer tools or AI infrastructure is the sensible approach.
Has Logan Kilpatrick had any exits?
Sources disagree. Crunchbase shows no IPO exits, while Tracxn lists OpenPipe as acquired in September 2025.
Is Logan Kilpatrick an angel investor?
Yes. Logan Kilpatrick invests personally as an angel. Crunchbase counts 27 investments.
What AI companies has Logan Kilpatrick invested in?
Logan Kilpatrick's AI investments include Hona AI, Friend, Unsloth AI, Second Nature Computing, Supermemory, Norm AI, Yutori and RadixArk. The 2 rounds on Lounge are listed on this page with amounts, dates and co-investors.
Where is Logan Kilpatrick based?
Logan Kilpatrick is based in Chicago, United States.
What stage does Logan Kilpatrick invest at?
In the rounds tracked on Lounge, Logan Kilpatrick has invested at Seed, with a median round of $100M.