Lyft

OpenAI

Lyft

Lyft takes a commission on every ride — typically 20-25% of the fare. The driver gets the rest plus tips.

Revenue also comes from service fees charged to riders, subscription products (Lyft Pink at $9.99/month for discounted rides), and bike and scooter rentals in select cities.

The economics are straightforward but brutal. Each ride has a driver who needs to be paid enough to show up, a rider who needs a low enough price to choose Lyft over alternatives, and Lyft's cut has to cover platform costs, insurance, customer support, and hopefully generate profit.

The margins are thin — gross margins hover around 45%, and after operating costs, the company has been unprofitable for most of its existence.

Advertising is an emerging revenue stream. Lyft Media places ads on in-car tablets, the Lyft app, and bike-share stations.

It's small but growing and high-margin compared to the ride business.

OpenAI

OpenAI makes money primarily through API access and subscriptions. The API charges developers per token (roughly per word) for using GPT models in their applications.

ChatGPT Plus costs $20/month for individual users, ChatGPT Team is $25-30/user/month, and ChatGPT Enterprise is custom-priced. Microsoft pays OpenAI licensing fees and also resells OpenAI models through Azure OpenAI Service.

OpenAI's annualised revenue ran past $13 billion during 2025 and kept climbing from there, which is the kind of growth curve that normally only exists in a pitch deck.

Lyft

Logan Green was obsessed with transportation. Growing up in Los Angeles — the car capital of America — he spent his college years studying why American cities were so car-dependent and how ride-sharing could fix it.

In 2007, at age 23, he started Zimride (named after Zimbabwe, where he'd seen communal minibus sharing), a long-distance carpooling platform for college campuses.

John Zimmer was a hospitality management student at Cornell who joined Zimride early on. The two realized that while Zimride worked for planned trips, there was no good solution for on-demand rides within a city.

Uber had launched UberCab in 2010 as a black car service, but it was expensive — a luxury product.

In 2012, Green and Zimmer pivoted Zimride into Lyft, launching a peer-to-peer ride-sharing service in San Francisco. The differentiator was branding: Lyft was friendly, casual, approachable.

Riders sat in the front seat. Cars had giant pink fuzzy mustaches (later replaced by a glowing dashboard amp).

Drivers fist-bumped passengers. It felt like getting a ride from a friend, not hailing a cab.

They eventually sold the original Zimride carpooling platform to Enterprise Rent-A-Car and went all in on Lyft.

OpenAI

OpenAI was founded in December 2015 as a nonprofit AI research lab. The founding donors — including Elon Musk, Sam Altman, Peter Thiel, Reid Hoffman, and Jessica Livingston — pledged $1 billion with a mission to build artificial general intelligence (AGI) that would benefit all of humanity.

The idea was that AI was too important and too dangerous to leave in the hands of Google alone.

Sam Altman became chairman while Greg Brockman (former CTO of Stripe) became president. Ilya Sutskever, one of the most respected AI researchers alive, left Google Brain to become chief scientist.

The early team was stacked with world-class researchers who published their work openly — hence "Open" AI.

But AI research turned out to be staggeringly expensive. Training large models required millions of dollars in compute.

In 2019, OpenAI created a "capped-profit" subsidiary — investors could earn up to 100x their money, but profits beyond that would flow to the nonprofit. Microsoft invested $1 billion.

The mission was still to save humanity. The method now involved making a lot of money first.

Lyft

Lyft's original growth strategy was being the anti-Uber. When Uber was mired in scandals — the Susan Fowler sexual harassment revelations, the "God View" privacy scandal, Travis Kalanick's combative leadership — Lyft positioned itself as the ethical alternative.

The #DeleteUber movement in 2017 sent a wave of riders to Lyft.

Market focus was another differentiator. While Uber expanded to 70+ countries, Lyft stayed focused on the US and Canada.

The theory was that winning one market deeply was better than spreading thin globally. This kept costs lower but also capped the growth ceiling.

Bike and scooter integration was the multimodal play. Lyft acquired Motivate (the largest bike-share operator in the US, running Citi Bike and others) in 2018 for $250 million, adding an entire transportation layer that Uber didn't have.

In dense urban areas, bikes often beat cars for short trips.

OpenAI

ChatGPT's launch in November 2022 was the growth strategy — it just wasn't planned that way. The team expected a modest research preview.

Instead, ChatGPT hit 1 million users in 5 days and 100 million monthly active users in 2 months, making it the fastest-growing consumer application in history. The product went viral because it felt like magic — for the first time, anyone could have a natural conversation with a machine that seemed to understand them.

The Microsoft partnership provided distribution at massive scale. Microsoft integrated OpenAI models into Bing, Office 365 (Copilot), GitHub (Copilot), and Azure.

Overnight, hundreds of millions of Microsoft users had access to OpenAI technology. Microsoft's $13 billion investment was the largest AI bet in history and gave OpenAI nearly unlimited compute.

The API created an ecosystem. Thousands of startups built products on top of OpenAI's models — from customer service bots to coding assistants to content generators.

Each API customer locked themselves into OpenAI's ecosystem, creating switching costs and recurring revenue.

Lyft

Uber is the problem that never goes away. Uber has 72% of the US ride-share market to Lyft's 28%.

Uber has global scale that generates massive data advantages, cross-selling opportunities (Uber Eats), and brand recognition. Every dollar Lyft spends on marketing, Uber can match and triple.

The market share gap has been stable for years, and closing it seems nearly impossible.

Profitability has been elusive. Lyft went public in March 2019 and lost money every quarter for nearly six years.

The company has cut staff aggressively — laying off 13% of employees in late 2022 and another 26% in April 2023. Only in the second quarter of 2024 did Lyft post its first profitable quarter as a public company.

Autonomous vehicles are both an opportunity and a threat. If self-driving technology works, it eliminates the biggest cost in ride-sharing: the human driver.

But Lyft sold its autonomous vehicle division (Level 5) to Toyota's Woven Planet in 2021 for $550 million. Now they partner with AV companies instead of building their own technology.

If Uber or Waymo crack autonomous rides first, Lyft could become irrelevant.

OpenAI

The board crisis of November 2023 nearly destroyed the company. The nonprofit board fired Sam Altman as CEO on a Friday, citing a loss of confidence.

Within 48 hours, 95% of employees threatened to quit and follow Altman to Microsoft. By Tuesday, Altman was reinstated and the board was restructured.

The incident exposed the fundamental tension between OpenAI's nonprofit governance and its for-profit ambitions — a tension it finally addressed in late 2025 by restructuring the business as a public benefit corporation sitting under the original nonprofit.

The cost of training frontier models is eye-watering. Each new GPT generation costs hundreds of millions to train.

OpenAI is reportedly spending over $7 billion annually on compute. The company is burning through cash faster than almost any startup in history, which is why it keeps raising at higher and higher valuations.

If revenue growth slows before costs stabilize, the math gets ugly.

Safety concerns are not going away. Multiple prominent researchers have left OpenAI over disagreements about the pace of development versus safety research.

Ilya Sutskever, the chief scientist who was central to the board's decision to fire Altman, left in 2024 to start a safety-focused AI lab. The public debate about whether OpenAI is moving too fast — and whether its safety commitments are genuine — grows louder with every capability improvement.

Lyft

Lyft Rideshare — the core ride-hailing platform matching riders with drivers in 600+ cities across the US and Canada. Lyft Pink — a subscription program ($9.99/month) offering 5% off rides, priority airport pickups, free roadside assistance, and discounted bike/scooter rides.

Lyft Bikes & Scooters — micromobility options in select cities including the iconic Citi Bike system in New York City (operated by Lyft since 2018). Lyft Autonomous — partnerships with autonomous vehicle companies including Motional and May Mobility to offer self-driving rides in select markets.

Lyft Media — an advertising platform placing ads across Lyft's digital and physical touchpoints including in-app, in-car tablets, and bike-share stations.

OpenAI

ChatGPT is the consumer chatbot — the product that made AI mainstream overnight. The flagship GPT models are multimodal, handling text, images, and audio in one system.

The OpenAI API lets developers integrate GPT into any application. DALL-E generates images from text descriptions.

Whisper transcribes and translates audio. Sora generates videos from text prompts.

GPT Store lets users create and share custom GPT agents. ChatGPT Enterprise gives businesses a private, secure version of ChatGPT with admin controls and no data training.

Lyft

Andreessen Horowitz led the Series A and was an early champion. Founders Fund invested early.

Fidelity, Alphabet (Google's parent), and Alibaba participated in later rounds — notably, Alphabet invested $1 billion in Lyft while simultaneously developing Waymo, a potential competitor. The March 2019 IPO raised $2.3 billion at a $24 billion valuation — Lyft beat Uber to the public markets by six weeks.

OpenAI

Microsoft ($13B), Thrive Capital, Khosla Ventures, Sequoia Capital, Founders Fund, Tiger Global, SoftBank, a16z