Iron Foundry by Terra API

Kyriakos Eleftheriou

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Kyriakos Eleftheriou, the founder and CEO of Terra API speaks with some of the best founders and CEOs in the space of health and fitness, to learn how the best are building their businesses. At TERRA API, we are on a mission to enable developers to connect and create solutions by using health data.

7月3日

George Hadjivarnava: Founding Foody, and building AI at Terra

George Hadjivarnava co-founded Foody as CTO with no VC money, made it profitable in under 2 years, and sold it to Delivery Hero in the biggest tech acquisition in Cyprus. Scaling through COVID from restaurant menus to full supermarkets, total downtime: 45 minutes. Now he leads engineering strategy at Terra and he believes the next infrastructure layer won't be built for developers at all. Why in two years 90% of Terra's customers will be agents instead of developersWhy MCPs didn't invent anything new, and the missing layer that transfers intent instead of commandsWhy nothing performs well past 100k tokens despite 1M context windowsThe decision log: AI's most underrated asset inside a companyBootstrapping Foody from phone orders and cash payments to a national exitCompressing hiring from 3 weeks to 1 day with 30,000 applications a yearThe 24/7 AI health system: even a billionaire's team of doctors goes to sleep (0:00) Intro (1:30) Startup ecosystem in Cyprus: more incubators than startups(7:20) Why ecosystems compound(23:00) Flunking Imperial and building websites to pay rent(29:00) Foody's first version: phone orders, cash only(39:35) The Delivery Hero acquisition and COVID scaling(43:05) 45 minutes of total downtime(44:45) You can one-shot an app. You can't one-shot 100M users(50:25) Joining Terra(56:40) The missing agent layer: intent, not commands(1:02:50) The 24/7 AI health system(1:09:35) The 90% agents prediction(1:11:05) Hiring compressed from 3 weeks to 1 day(1:15:35) The decision log: building a company brain(1:19:10) Why 1M context windows are marketing(1:26:35) Three changes to become a real technology hub

1時間24分
6月1日

Former Y Combinator President | Geoff Ralston

⁠Geoff Ralston⁠⁠ built Rocket Mail before Yahoo Mail existed, built Lala before Spotify worked in America, sat in Steve Jobs' living room to get an acquisition approved, and ran Y Combinator as President. Now he says the most important thing he's ever worked on is making sure AI doesn't kill us. In this episode with ⁠⁠Kyriakos Eleftheriou⁠⁠, Geoff speaks about YC, SAIF, the Yahoo acquisition, and the top learnings after decades in silicon valley 00:00 Introduction 03:45 The $70K bet that built Sand Hill Road 06:07 Early to every wave 06:59 "The most important thing I've ever worked on" 08:18 Timing is luck. Here's how to get lucky anyway 10:46 Quitting HP the day he saw the Mosaic browser 15:39 Paul Graham's "packets of cash" acquisition rule 19:35 The Yahoo revolt that almost killed the deal 33:45 Zuck killed Facebook Music in one sentence 39:05 Why Steve Jobs offered him a job — and why he said no 45:40 Running Y Combinator 50:37 Steve Jobs' real superpower 54:06 Why AI is more dangerous than people think 01:01:15 Peter Thiel is wrong about competition 01:03:31 Marc Andreessen is wrong about introspection -- Full podcast and writeup → Geoff Ralston on early YC, AI risk, and why Thiel is wrong about competition

1時間6分
5月1日

Head of Samsung Next: David Lee - Live in LA

By the age of 25, David Lee survived stage 4 lymphoma. Not only did he not let it stop him, he worked early in Google, became a partner at SV Angel during the Airbnb / Twitter / Dropbox / Snapchat era, and now leads Samsung Next. In the latest discussion with Kyriakos Eleftheriou in Los Angeles, they discussed: CHAPTERS (00:00) Introduction (02:30) Why digital health still hasn't had its "reusable rocket" (07:00) "Law school is coding for your mind" (08:30) How Elon, Dorsey and Belichick boil any problem down to 3 things (11:00) Telling Yo-Yo Ma from a college cellist — how to spot real talent (14:00) The NFL gets the #1 pick wrong 50% of the time — so how do you pick founders? (16:30) Most pro athletes are scared in big games (19:30) Without a killer product, you have no strategy (22:00) Vanity beats health — why no one wears the clunky device (29:00) Your kids will never do what you tell them — they copy what you do (32:30) Jensen Huang, Saturdays, and why the top person sets everything (37:30) The "red zone of intelligence" AI will never touch (38:30) Why the great fitness instructor gets paid more in the AI era (40:30) Why VC is the wrong financing model for the next decade (41:30) Mike Ovitz and CAA — the playbook for winning in AI Full podcast and writeup → David Lee on Samsung Next, picking founders, and building inside a giant

43分
4月8日

Chief Growth Officer of HYROX: Douglas Gremmen

42,000 tickets for one New York event. 15,000 gym affiliates. $0 spent on influencers. HYROX CGO Douglas Gremmen joins Kyriakos, CEO of Terra API , at the Connected Health Summit in Stanford to talk through what actually drove that — and what didn't work. The US was their first market outside Germany and their hardest. Three years of losses. A single Lance Armstrong weekend changed the momentum — not because they paid him, but because he just turned up. The gym affiliate program started as inbounds with no structure; it's now the foundation of a bet to reach 100 million people. The CrossFit comparison gets a real answer, not a PR one. But the most interesting parts are the early decisions: rejecting the $2 race t-shirt, the photo package that created the organic flywheel, and a simple principle — invest in the event experience and don't run paid marketing. 00:00 Welcome to Stanford 01:46 Running HYROX at a Conference & the "Bubble" Moment 03:48 The Sweaty Barrier to Participation Problem 05:44 Douglas's Backstory: Sports Marketing & How HYROX Was Born 08:59 From First Event in Hamburg to Leading Global Expansion 10:29 Early Growth: The Van, T-Shirts, Red Bull & the Photo Flywheel 12:36 Global Expansion: Japan, Brazil, India & Getting on the Calendar 14:56 Why the US Was the Hardest Market to Crack 17:28 Losing Money in America — Keeping Belief When the P&L Doesn't Work 19:09 The Lance Armstrong New York Bet: $1M & 30M Impressions 20:27 Influencers at HYROX: Always Organic, Never Paid 21:52 Scaling to 42,000 Tickets: 9 Days of Racing Bigger Than NYC Marathon 23:45 Building Operations: Christian Tutske's Eye for Detail 25:39 Why Athletes Keep Coming Back: Community & Identity 28:00 HYROX 365: From Events Company to 15,000-Gym Affiliate Business 30:54 Accelerating Gym Growth: Big Box Operators & Chicken-and-Egg Dynamics 34:27 HYROX as a Gym Retention Play: Coach Education & Member Stickiness 36:49 Fragmented Gym Tech & the Data Opportunity 38:23 HYROX vs. CrossFit: Honest Comparison & 1,500 Shared Affiliates 43:10 The Pickleball Analogy: Low Barrier + Social + Price = Rocket Ship 46:49 The Path to 100 Million People: Events, Gyms & Knowing Who Trains 49:50 HYROX x Puma: Building a Fashion Brand & the First Dedicated Shoe 54:14 Contrarian Take on the Future of Fitness: Back to Fundamentals 56:35 Physical Events vs. Social Media: Why Credibility Is Harder to Fake 59:11 Post-COVID Perfect Storm & Tickets Selling Out as the New Challenge 01:01:09 Where Will HYROX Be in 5 Years? Formula One, Olympics 2032 & 100M People Full podcast and writeup → Douglas Gremmen on selling 42,000 tickets in a day and scaling HYROX to 15,000 gyms

1時間4分
3月2日

CTO + Director of AI at Flo Health: Roman Bugaev + Vladislav Nedosekin

In the latest episode, Kyriakos Eleftheriou sat down with Roman Bugaev , CTO of Flo and Vlad Nedosekin Director of AI Platform, at the Terra API HQ in London, to discuss how they built the top health AI platform globally for women's health. CHAPTERS (0:00) Intro — Flo Health: From 20 People to 80 Million Users (1:02) How Flo became the fastest-growing health company in the world (1:48) Roman's early days: 20 employees, no revenue, product-market fit (3:15) How did you know the product was a hit? (3:25) The underserved women's health market — everyone was building Uber alternatives (4:31) First ML: neural networks for cycle and symptom prediction (5:31) Product evolution — from symptom tracking to AI-powered insights (5:38) Building chatbots inspired by how doctors ask questions (9:18) A/B testing at scale — Flo's custom experimentation platform (11:43) Engineering structure: autonomous two-pizza teams (13:51) Team mistakes — why separate mobile and backend teams failed (15:29) Scaling from 4 servers to 600 services and petabytes of data (17:53) "Whenever it's possible, we are NOT doing AI" (23:15) Why temperature data is critical for ovulation prediction (25:09) Why Flo is the most accurate period tracker — data diversity advantage (28:04) Competition: "We don't really have real competitors" (29:00) AI content creation — generating personalized medical articles (31:01) Hallucinations vs. conflicting medical sources (32:34) The three-person blind test: when AI disagrees with humans (35:10) AI is more consistent than clinicians — but biased against women (36:52) Fine-tuning open-source models on synthetic women's health data (38:25) User profile: the foundation of Flo's personalization (41:19) The digital avatar — your AI health twin that notices what you don't (43:09) AI router: like a GP triage system for language models (46:04) Router also controls tone of voice and remembers past conversations (47:29) "Evaluation, evaluation, evaluation" — how Flo picks models (48:40) Model stability: why proprietary model updates are dangerous for medical AI (51:01) Anonymous mode: privacy that enables AI instead of blocking it (53:49) On-device ML for the most sensitive health data (56:03) Cloudflare outage — "when everyone is down, you're allowed to be down" (56:58) Fine-tuning Llama 7B on Databricks — 10,000+ GPU hours per run (58:07) Training vs. inference cost breakdown (59:45) 100,000-token prompts: the hidden cost of medical AI (1:01:05) Build vs. buy: "Build your competitive advantage, buy everything else" (1:04:47) Value creation vs. value capture teams (1:07:04) The future: AI that knows you better than you know yourself (1:09:00) Time series models: the future of health prediction from wearables (1:10:38) Q&A Full podcast and writeup → Roman Bugaev and Vladislav Nedosekin on scaling Flo Health to 80M users and shipping AI in femtech

1時間42分
1月18日

Glovo and Yellow.vc co-founder, Sacha Michaud

In this episode, Kyriakos Eleftheriou, Terra API CEO sits down with Sacha Michaud, co-founder of Glovo, one of the biggest tech successes in the European tech ecosystem,and Yellow.VC, an early-stage fund Sacha shares the journey of building the on-demand delivery service from its inception in Barcelona to its expansion across 25 countries and a $2.3 billion acquisition. He discusses the initial challenges of fundraising, competing against larger companies, and the importance of passion and culture in building a successful team. Michaud reflects on the early days of Glovo, where they experimented with a simple app that allowed users to order anything from the city, leading to unexpected viral growth despite initial losses. He emphasizes the significance of adapting to market needs and the evolution of Glovo's business model over the years, particularly during the COVID-19 pandemic, which accelerated the demand for grocery delivery. Chapters 00:00 Introduction 02:29 The Birth of Glovo: From Idea to Launch 05:59 Viral Growth and Initial Operations 12:06 Realizing the Potential of Glovo 21:39 Expanding into New Markets 38:55 Navigating Competition and Strategic Decisions 50:39 The $2.3B Acquisition 55:00 Yellow, and investing in new startups 01:04:11 AI and Future Trends in Delivery Full podcast and writeup → Sacha Michaud on building Glovo into a $2B delivery giant and now backing founders at Yellow.vc

1時間25分
2025/10/21

Thriva CTO: Tom Livesey

In this conversation, Kyriakos Eleftheriou is joined by Tom Livesey, CTO and co-founder of Thriva, who discusses the journey of his health tech company, which has transformed the way individuals monitor their health through innovative blood testing solutions. He shares insights on the challenges faced during the startup phase, the impact of COVID-19 on their operations, and the importance of consumer awareness in health diagnostics. Tom emphasizes the need for personalization in health insights and the role of technology in improving user experience. He also touches on the fundraising journey, navigating the NHS landscape, and the future of health tech. Chapters 00:00 Intro 02:44 Navigating the Challenges of Health Testing 05:30 The Evolution of Thriva's Product Offering 08:33 Fundraising Journey: From Startup to Success 11:15 COVID-19: A Catalyst for Change 14:11 The Future of Health Diagnostics 16:53 Building a Sustainable Business Model 19:29 Customer Acquisition and Marketing Strategies 22:27 The Role of Technology in Health Monitoring 24:56 The Impact of Consumer Awareness on Health 27:32 The Next Decade: Predictions for Health Tech 30:35 Addressing Consumer Anxiety in Health Testing 33:15 The Importance of Personalization in Health Insights 36:06 Navigating the NHS Landscape 39:00 The Future of Home Testing and Diagnostics Full podcast and writeup → Tom Livesey on going from a shed behind a hackle tree to 4M blood tests and powering the NHS

55分
2025/09/21

Huma CEO: Dan Vahdat

The first Iranian entrepreneur to build a company worth over $1B in Europe, Dan Vahdat, founder of Huma, is joining Kyriakos Eleftheriou, founder of Terra API They discuss: 00:00 - Intro 02:10 - Communicating with @EmmanuelMacron and @kmitsotakis 08:55 - Why are Greece and Persia not empires today 13:40 - How the best people look like 18:30 - Short-term vs long-term thinking 24:27 - Dropping out of PhD 26:57 - The first months of Huma 32:00 - Early days 32:27 - 'I never had the ego of being turned down' 34:00 - First customers 37:21 - How to price expensive contracts 48:30 - Regulation as a moat 59:10 - Raising $300m from partners instead of VC 1:02:58 - AI 1:06:00 - Storytelling advice 1:09:55 - Running 1:14:32 - Cyrus, Darius, and Achaemenid inspirations 1:19:23 - The future

1時間37分

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Kyriakos Eleftheriou, the founder and CEO of Terra API speaks with some of the best founders and CEOs in the space of health and fitness, to learn how the best are building their businesses. At TERRA API, we are on a mission to enable developers to connect and create solutions by using health data.

クリエイター

Kyriakos Eleftheriou
配信期間

22年 - 26年
エピソード

69
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© Kyriakos Eleftheriou
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Iron Foundry by Terra API