Observed Signal · Aug 20, 2026 · Product Launch · Source: Gründerszene (DACH Startups & Scaleups) · Impact: 2/5 · Sentiment: Positive
Law Student Builds Marketing Apps with AI
The article profiles Klaas Wibker, a 23-year-old law student from Leipzig, who learned to code using AI tools like Claude Code and OpenAI's Codex. Without prior programming experience, he built several apps, including Contentmarkt, an influencer marketing platform that connects brands with social media users. He is a participant in the 'Gründerszene sucht die Supergründer' fellowship organized by Axel Springer. The fellowship is supported by OpenAI, Vercel, Dash0, and DHL. Wibker also developed TomTravel, a voice-based flight booking platform. He previously interned at Trade Republic. The article highlights how AI is enabling non-coders to build software and start businesses.
Profile of a startup founder using AI to build a niche influencer marketing platform; not industry-shifting.
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Key Takeaways & Evidence Grounding
- Klaas Wibker, a 23-year-old law student, built multiple apps using AI coding tools despite no prior programming knowledge.
- He developed Contentmarkt, an influencer marketing platform linking brands with social media users.
- The Contentmarkt app was built using OpenAI's Codex and is now publicly available for download.
- Wibker is part of Axel Springer's 'Gründerszene sucht die Supergründer' fellowship, which includes partners OpenAI, Vercel, Dash0, and DHL.
- He also created TomTravel, a voice-based flight booking platform, and previously interned at Trade Republic.
Connected Companies & Entities
6 Entities mapped“Sie nutzen dafür die Tools unserer Partner OpenAI, Vercel und Dash0....”
“Sie nutzen dafür die Tools unserer Partner OpenAI, Vercel und Dash0....”
“Sie nutzen dafür die Tools unserer Partner OpenAI, Vercel und Dash0....”
“Gründerszene sucht die Supergründer" is a ten-week startup fellowship by Gründerszene... Alle daraus entstehenden Produkte gehören zu Axel S...”
“Anfang 2026 macht Klaas ein Praktikum bei Trade Republic, aktuell das zweitwertvollste Startup Deutschlands....”
“Partner wie OpenAI, Vercel, Dash0 und DHL unterstützen sie mit Technologie, Know-how und Mentoring....”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Fired OpenAI Researchers Dispute Misconduct Claims, Warn of Chilling Effect
Three OpenAI safety researchers, Jasmine Wang, Tomek Korbak, and Mikita Balesni, who were fired last week, have published an open letter denying allegations of mishandling sensitive information. They warn that their dismissal creates a chilling effect that stifles AI safety work and open dialogue within the company. The researchers say they acted in good faith and within company norms, and that the reasons for their firing are unclear. They urge OpenAI to uphold its commitments to third-party safety auditors and maintain a transparent culture. OpenAI responded with an internal memo denying retaliation and stating that employees are not terminated for raising concerns, but did not address specific policy violations or circumstances of the dismissal. The dispute highlights tensions between internal safety research and company communication policies at a time when OpenAI faces scrutiny over safety incidents.
AI Leaderboard Arena Raises $200M at $3.1B Valuation
Arena, the AI leaderboard platform that originated as a UC Berkeley research project, has raised a $200 million Series B round at a $3.1 billion valuation. The round was led by Lightspeed Venture Partners and Khosla Ventures, with participation from Salesforce Ventures, 01 Advisors, Dell Technologies Capital, Endeavor Catalyst, a16z, Felicis, and others. This follows the company's announcement in June that it reached $100 million in annualized run-rate revenue. Arena provides a crowdsourced platform where users rate AI model outputs, and it has introduced a commercial product called AI Evaluations to offer detailed performance analytics. The company has also added a new 'alignment' category to its leaderboard, ranking models on issues like unauthorized actions and deceptive completion. Arena's valuation has nearly doubled in about 10 months, from $1.7 billion post-money in January to $3.1 billion now.
AWNY, Jupiter Fest Spotlight Agentic Ads and Open Web
Advertising Week New York and the inaugural Jupiter Festival Miami highlighted the industry's shift toward agentic advertising and anxieties about the open web's future. Major announcements included TikTok's off-platform ad expansion and a new AI shopping agent, Meta's AI campaign assistant testing, and OpenAI's visual ads introduction. Paramount's $110 billion acquisition of Warner Bros. Discovery closed, forming Skydance. Key themes were the threat of AI to publisher traffic, the rise of AI visibility tools, the early stage of agentic media buying, unsolved cross-platform measurement, and the booming sports and retail media sectors. Deals included PubX's acquisition of Compliant and a $5 million Series A, and OpenAI's reported $30 billion round talks with BlackRock and UAE investors.
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