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This episode explores how AppLovin transformed from a small mobile gaming ad network into a hundred-billion-dollar machine through the reinvention of its core recommendation engine, Axon 2. The host, Molly O'Shea, speaks with CEO Adam and CTO Gio about their lean engineering culture, extreme focus on individual contributors, and how they successfully expanded beyond gaming into e-commerce. They discuss the strategic advantages of maintaining a flat organizational structure, leveraging AI as a force multiplier rather than a replacement for human judgment, and navigating a ninety-two percent stock price drop after going public by doubling down on their own shares and technology.
The conversation highlights the unique operational philosophy that prioritizes business outcomes over bureaucratic processes, allowing engineers to write code and ship products without product management intermediaries. The guests explain how their deep learning models optimize return on ad spend by closing the loop between initial engagement and ultimate conversion, creating immense value for advertisers. Throughout the discussion, they emphasize that true differentiation in the age of AI comes down to taste, discipline, and knowing what not to build.
The hosts introduce the episode and set the stage by discussing AppLovin’s ambitious growth goals and the challenges faced after going public.
The hosts discuss Gio’s recruitment, the interview dynamics, and the strategic decision to bring him on board during a critical period.
Gio explains how the team rebuilt the advertising engine from scratch, moving from outdated models to a modern, GPU‑optimized neural network.
The hosts explore how the core technology was extended beyond gaming to e‑commerce, highlighting the challenges and opportunities in new markets.
The discussion turns to the types of data collected, how user interactions drive model training, and the importance of long‑form engagement in gaming ads.
Gio and the host discuss mistakes in onboarding, the importance of context, and how the team encourages rapid learning and self‑direction.
The hosts examine how AI tools are changing ad creation, the balance between automation and human oversight, and the challenges of maintaining brand trust.
The episode concludes with speculation on acquiring AI content firms, the limitations of current tools, and the potential for future innovation in ad production.
Discusses how AI lets AppLovin scale its existing teams and products instead of rebuilding from scratch.
Highlights the mistake of building too many low‑value AI features that dilute focus.
Explores the challenge of turning a non‑AI‑native workforce into an AI‑native organization.
Outlines the financial and product strategies needed to grow from $100B to $1T.
Joining During a 30% Stock Dropstory
Gio describes the surreal experience of joining AppLovin right as its stock fell thirty percent, viewing the drop not as a deterrent but as an opportunity for greater equity upside.
Writing Code on a Flight to Italystory
Gio shares an anecdote about being trapped on a twelve-hour flight without internet access while building Axon 2, forcing him to dive deep into source code libraries to solve infrastructure challenges.
Replacing Tree Models With Neural Networksinsight
Gio explains the technical shift from outdated tree-based clustering models to deep neural networks powered by semantic embeddings, which dramatically improved prediction accuracy and GPU efficiency.
Designing a Data Engine on a Napkinstory
Gio recounts how he and CTO Basil designed the data flow engine for their new e-commerce product on a restaurant napkin during a breakfast meeting in Vegas.
Sitting on Top of AIstrategy
Gio explains his philosophy on AI integration, stating that engineers should not sit next to AI but rather sit on top of it, focusing on long-horizon planning and tasks AI cannot handle.
Taste Over Raw Building Abilityinsight
The guests argue that as AI commoditizes the ability to build, the true differentiator for a great company is taste—knowing precisely what to build and what to leave undone.
“When we first started, it was I want to become a billion dollar company.”
“I want our engineers to sit on top of AI.”
“We don't have the traditional training processes to bring people along.”
“If someone can come in and say, "Look, there's no training manual, but I'm gonna sort of build my own training manual and prompt AI and start asking the questions they need."”
“We had to be profitable really early.”
“AI is, you know, powerful, but I don't think that's the reason for us to rebuild.”
“I think a big, big mistake that people are making is that because of AI, building things become easier.”
“We need to understand what's the problem we need to solve.”
“I don't think we need to rebuild anything, but we are definitely building on top of what we have today.”
“When we went public, a lot of people celebrate, think, okay, we went public, this is a great milestone.”
Adam Foroughi, Co-Founder & CEO of AppLovin, and Giovanni Ge, CTO of AppLovin, join Sourcery from AppLovin’s Palo Alto headquarters for a deep dive into the technology and strategy behind its advertising business. Gio joined AppLovin in late 2022, when the company was worth roughly $5.5 billion, and helped architect Axon 2, the recommendation engine that became central to AppLovin’s transformation. The new architecture improved predictions and advertiser returns, helping drive the company’s expansion beyond mobile gaming into e-commerce ads and its recovery from a 92% post-IPO decline to a $100B+ company. Adam and Gio break down how Axon works, how AppLovin scales with a remarkably lean engineering team, how AI is changing the way they build, why knowing what not to build matters, and what it would take for AppLovin to eventually become a trillion-dollar company. We also cover AppLovin’s expansion into e-commerce, the future of advertising across LLMs and connected TV, engineering culture, and how they think about building for the next five to ten years. Adam Foroughi: https://www.linkedin.com/in/adamforoughi/ Giovanni Ge: https://www.linkedin.com/in/xiaochuan-giovanni-ge/ Molly O’Shea: https://x.com/MollySOShea Sourcery: https://x.com/sourceryy 𝐄𝐏𝐈𝐒𝐎𝐃𝐄 𝐋𝐈𝐍𝐊 YouTube: https://youtu.be/IZHwulZQixQ 𝐒𝐏𝐎𝐍𝐒𝐎𝐑𝐒 • Brex https://brex.com/sourcery—The modern finance platform, combining the world’s smartest corporate card with integrated expense management, banking, bill pay, & travel. https://brex.com/sourcery • Turing https://turing.com/sourcery—Turing delivers top-tier talent, data, and tools to help AI labs improve model performance—and enables enterprises to turn those models into powerful, production-ready systems. https://turing.com/sourcery • VCX https://fundrise.com/vcx—VCX is the public ticker for private tech, allowing investors of all sizes to invest in venture capital. View The Portfolio at http://GetVCX.com http://getvcx.com • Deel https://www.deel.com/sourcery—Deel is the global people platform that helps startups hire, manage, pay, and equip anyone, anywhere. Trusted by more than 35,000 fast-growing companies, Deel is the people platform that just works, so teams can scale without the chaos. Visit: https://www.deel.com/sourcery • Public http://public.com/sourcery–Investing platform Public just launched Generated Assets https://public.com/generated-asset, which lets you turn any idea into an investable index with AI. With Generated Assets, you can build, backtest, refine, and invest in any thesis with AI. Gone are the days of one-size-fits-all ETFs. https://public.com/sourcery Follow Sourcery for the latest updates! https://www.sourcery.vc https://www.sourcery.vc/ Disclosure Paid Endorsement. Brokerage services by Open to the Public Investing Inc, member FINRA & SIPC. Advisory services by Public Advisors LLC, SEC-registered adviser. Crypto trading provided by Zero Hash LLC, licensed by the NYSDFS. Generated Assets is an interactive analysis tool by Public Advisors. Output is for informational purposes only and is not an investment recommendation or advice. See disclosures at public.com/disclosures/ga. Matched funds must remain in your account for at least 5 years. Match rate and other terms are subject to change at any time. 𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒 (00:00) Adam Foroughi, Co-Founder & CEO and Giovanni Ge, CTO at AppLovin (00:52) Gio's first impression of AppLovin (03:38) Joining AppLovin after a 30% stock drop (09:59) How Axon 2 actually got built (20:23) Why AppLovin never needed a sales team (21:59) From gaming ads to e-commerce (24:47) From a napkin drawing to a real product (30:54) The onboarding mistake most companies make (34:37) What "AI-Native" actually means (36:37) Should new engineers still learn to code? (41:41) UGC vs. traditional ads: what's winning? (47:56) Adapting to AI without rebuilding from scratch (54:50) Gio's daily tech stack (1:02:17) AppLovin's path to a trillion-dollar valuation (1:06:19) Recovering from a 90% stock drop (1:09:47) What's next for AppLovin? (1:13:44) What happens when AI takes over? (1:15:48) Adam and Gio's hottest takes (1:19:50) How to actually stay locked in
16,255 words · 3 speakers
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