CodeSignal’s new AI tutoring app Cosmo wants to be the ‘Duolingo for job skills’
CodeSignal Inc., the San Francisco-based skills assessment platform trusted by Netflix, Meta, and Capital One, launched Cosmo on Wednesday, a mobile learning application that transforms spare minutes into career-ready skills through artificial intelligence-powered micro-courses. The app represents a strategic pivot for CodeSignal, which built its reputation assessing technical talent for major corporations but always harbored ambitions to revolutionize workplace education. Cosmo delivers over 300 bite-sized courses across generative AI, coding, marketing, finance, and leadership through an interactive chat interface powered by an AI tutor. “Cosmo is like having an AI tutor in your pocket that can teach you anything from GenAI to coding to marketing to finance to leadership, and it does it through practice,” said Tigran Sloyan, CodeSignal’s co-founder and CEO in an exclusive interview with VentureBeat. “Instead of watching a video or reading about something, you immediately start practicing.” The launch comes as organizations grapple with massive skills gaps created by rapid AI adoption. According to the 2024 Stack Overflow Developer Survey, 76% of developers are now using or plan to use AI tools, yet most workers lack the practical knowledge to harness these tools effectively. Traditional corporate training programs, which can cost $20,000 to $40,000 per person for executive-level instruction, have proven inadequate for scaling AI literacy across entire workforces. AI Scaling Hits Its Limits Power caps, rising token costs, and inference delays are reshaping enterprise AI. Join our exclusive salon to discover how top teams are: Turning energy into a strategic advantage Architecting efficient inference for real throughput gains Unlocking competitive ROI with sustainable AI systems Secure your spot to stay ahead: https://bit.ly/4mwGngO How CodeSignal pivoted from tech hiring platform to mobile education powerhouse CodeSignal’s journey into mobile learning culminates a decade-long vision that took an unexpected detour through the hiring technology space. Sloyan originally founded the company in 2015 with educational ambitions but quickly realized that without skills-based hiring practices, alternative education would fail to gain traction. “I started the company with that dream and mission: I want to help more humans achieve their true potential, which naturally leads to better education,” Sloyan explained in an interview. “But roughly two years into the company’s history, I realized that without knowing companies would actually care about the skills you build through alternative education — rather than just asking ‘where did you go to college?’ or ‘what did you major in?’ — it wouldn’t work.” The company spent the next six years building what became the leading technical assessment platform, processing millions of coding evaluations for over 3,000 companies. This hiring-focused period provided CodeSignal with crucial intelligence about which skills employers actually value — data that now informs Cosmo’s curriculum development. “We know exactly what companies are looking for,” Sloyan said. “Without that, I feel like you’re shooting in the dark when you’re trying to prepare people for what is going to help them get that job, what is going to help them advance their career.” Why AI tutors could finally solve the personalized learning problem Cosmo differentiates itself through what CodeSignal calls “practice-first learning,” where users immediately engage with realistic workplace scenarios rather than consuming passive video content. The app’s AI tutor, also named Cosmo, guides learners through conversational exchanges that adapt to individual knowledge levels and learning pace. The platform addresses what educational psychologists call “Bloom’s two sigma problem” — a 1984 study showing that one-on-one tutoring produces learning outcomes two standard deviations above traditional classroom instruction. For four decades, this remained theoretically interesting but practically impossible to scale. “We know one-on-one personalization and tutoring really makes a difference in learning, but it can’t be done at scale. How do you get a tutor for every human?” Sloyan said. “In 2023, when I saw early versions of generative AI, I thought: this is the moment. This technology, especially if it keeps getting better, can be uniquely used to help humans learn the way learning was meant to happen.” The app combines predetermined course content with real-time personalization. Each lesson follows a structured curriculum, but learners can interrupt with questions that prompt immediate AI-generated explanations before returning to the main content thread. Generative AI skills training takes center stage as workforce scrambles to adapt Nearly one-third of Cosmo’s launch content focuses on generative AI applications, reflecting what CodeSignal identifies as the most critical skills gap in today’s market. The app offers role-specific AI training paths for sales professionals, marketers, engineers, healthcare workers, and other specialties. “The biggest emphasis is on generative AI skills, because that’s the biggest career skills gap right now for both students and working adults,” Sloyan explained. “Everything from how to understand and use GenAI, how to think about its limitations, how to be better at prompting, and how to understand the entire landscape.” This focus addresses a broader workforce transformation driven by AI adoption. While some fear job displacement, Sloyan predicts increased demand for skilled workers who can effectively collaborate with AI systems. “I don’t believe we’re going to reach a point where humans are no longer needed in the workforce. I think it’s going to be the opposite. We’re going to need more humans, because what an individual human can do in the age of AI is going to be so much bigger than what we could do before,” he said. Mobile-first learning strategy targets both individual workers and corporate clients CodeSignal positions Cosmo as fundamentally a consumer application that also serves enterprise customers — a reflection of how workplace learning actually occurs. The company already provides its GenAI Skills Academy to corporate clients, and Cosmo extends this training to mobile devices for on-the-go learning. “Even though some of the largest educational companies, like Coursera and Udemy, are making the majority of their income, or at least half, from companies, at the end of the day, education is a consumer business,” Sloyan noted. “Who are you educating? You’re not educating a company — you’re educating individuals.” The app launches free on iOS with premium subscriptions at $24.99 monthly or $149.99
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