On AI Lounge since Oct 2026
Marc Päpper
Member #159FounderBetaL1Founder, Cognition Pixels
Solo founder building in AI; ex-CTO of Lemundo and CIO at Mindpeak
How karma works. Everyone starts with 5. You get +1 each time another member upvotes one of your posts or comments (your own upvotes don't count), and lose it if they take the upvote back. Post what you're building, answer questions and help other members to earn more.
Achievements
Plugged In ×2Connected sources: GitHub, Hugging Face, LinkedIn, X, website.How: Connected 2 sources (GitHub, LinkedIn, X or a website) in Settings
Plugged In×2
Founding MemberOne of the first 500 members.How: Joined AI Lounge in the founding cohort
Founding Member
SpotlightWas the AI Lounge Featured Member for a day.How: Featured Member
Spotlight
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About
Marc Päpper is the founder of Cognition Pixels in Hamburg, where he works as a solo founder building in the AI space. Marc has a background in computer science and computational neuroscience. He founded Lemundo GmbH and served as its CTO, then became CIO at Mindpeak, where he built machine learning tools that help cancer experts with diagnostics. He also maintains open-source projects such as llm_agents and vibevoice, a local speech-to-text tool.
Stack
Raises & exits
Member RaisesExits
Hall of Fame →Munter
Undisclosed
Munter, an online shop for seniors built by Lemundo's co-founders, was sold to an unnamed investor in May, around 2012; the price was not disclosed.
Education
LM
Ludwig-Maximilians-Universität München (LMU)
University of California, Berkeley
Universität Hamburg
