Assertion Not checkable as stated
Speechify currently tests nearly 1,000 data-generated ads daily
“We test almost a thousand data generated ads a day right now.”
Prediction Open · timeframe May 2028
Weitzman: Speechify will soon spend more on AI tokens than salaries
“We're getting to the point where soon we're going to spend more on tokens than we spend on actual salaries.”
Assertion Not checkable as stated
Speechify reads over 10M books worth of words annually
“So we built a deep learning-based text-to-speech model in 2015 that now reads more than ten million books worth of words to people every year.”
Insight
Weitzman's Framework for New Roles: Read 100 Books, Interview 100 Experts
“And my rule is I will read a hundred books about the topic, listen to them with Speechify. I will identify a hundred experts and I'll go and have a conversation with them.”
Insight
Weitzman: Growth is an arbitrage game limited to content and distribution
“Growth is just an arbitrage game. You are competing with every single other person in the world who wants to get their product in front of users. And that means that your lever points are either the content that you make or how you distribute that content.”
Assertion Not checkable as stated
Weitzman: All Speechify executives must remain hands-on practitioners who buy ads
“I made sure that everybody in our company, no matter how senior they got, always were still not just a fat general sitting at the back, but a warrior who could take out their sword and actually hands on keyboard by the ads.”
Assertion Supported
Weitzman: Speechify engineers must respond to messages within 60 seconds
“And we have a principle even inside of engineering, which is you've got to respond to messages within 60 seconds because you want to unblock people.”
Assertion Not checkable as stated
Speechify fast-tracks cross-team pull requests to encourage multi-repo learning
“And so we have a rule if you ship a PR, To a repo that your team is not responsible for, it gets fast tracked and that team has to very quickly respond because I want to encourage people to learn how to contribute to other code bases.”
Insight
Weitzman: Startups Must Commit to Six-Month 'Bulking or Cutting' Cycles
“Companies go through cutting and bulking cycles like bodybuilders do, and there's a reason why cutting and bulking makes sense, because you can't oscillate between the two in one week. You have to commit for like six months to doing one.”
Disclosure
Weitzman: Speechify Took Four and a Half Years to Find Product-Market Fit
“It took us four and a half years to find real product market fit.”
Insight
Weitzman: Cutting Costs Is Easy, Growing Revenue Takes Genius
“Any Harvard MBA can cut costs. If you're smart, you could do it. It takes a genius to grow revenue.”
Disclosure
Weitzman: Speechify Ran Profitably for Four and a Half Years
“Speechify just finished four and a half years of running profitable.”
Disclosure
Speechify spends $500k monthly producing 20,000 ad creatives
“I'm okay spending 500,000 dollars a month making 20,000 pieces of creative because that is a creative investment.”
Assertion Partly supported
Speechify is among 200 companies testing ads on OpenAI
“We're one of the 200 companies that's provisioned to test ads on OpenAI.”
Disclosure
Speechify reports significantly more female users than male users
“Women convert a lot better than men as like audiences. And so right now it's a more, we have more women who use the product than men by like a good margin at the moment.”
Insight
Weitzman: You Can't Win Ad Arbitrage Using Standard Competitor Tools
“Because it's an arbitrage game, if you use the tool that everybody else uses, typically you're not going to win.”
Assertion Supported
Weitzman: Speechify uploads 1,300 ad creatives daily to testing campaigns
“Every day we upload 1300 to our testing campaigns.”
Insight
Weitzman: Video ad performance depends on the first frame, not three-second retention
“So the rule in videos typically is you win or lose by the 1:03 seconds. Do you have good retention in the 1:03 seconds? But the rule I developed is actually you win or lose by the first image of the video, like the first 10 80 pixels.”
Assertion Not checkable as stated
Weitzman: Speechify rap song ad about dyslexia generated $3 million
“The one that I did not expect to work that worked amazing is I wrote a rap song about my experience with dyslexia and ADHD, and that thing made us like three million, also like three million dollars on a rap song.”
Assertion Supported
Weitzman: Speechify Has Passed 50 Million Consumer Users
“We have more than fifty million people who use Speechify now, the organic B to C product that makes it really easy to read”
Disclosure
Cliff Weitzman: 15% of Speechify's users come organically from ChatGPT
“15% of our users come organically from ChatGPT.”
Prediction Not checkable as stated
Weitzman: OpenAI ads will be massive due to deep user context
“Of course. Yeah, massive. Massive, massive. Because it knows so much about you.”
Opinion
Cliff Weitzman: Meta is one of the most underrated stocks right now
“Yeah, I think Meta is one of the most underrated stocks right now.”
Insight
Weitzman: Acquisition and QA become paramount as engineering commoditizes
“I think that in a world where engineering is commoditized, and design for the most part is commoditized, the most important thing becomes excellent QA, we can talk about later, and customer acquisition.”
Opinion
Cliff Weitzman: Mark Zuckerberg is the world's best acquirer
“Zuck also has proven that he is the number one acquirer in the world. Like, no one acquires as well as Meta.”
Prediction Not checkable as stated
Weitzman: AI Token Budgets Will Outpace Engineering Salaries Within Three Years
“We'll get there in three years. Yeah. You just need to be like a really strong early adopter.”
Insight
Weitzman: Feature adoption takes ~100 iterations internally and externally
“And what we found is it takes about a hundred iterations on a feature before the feature gets adopted. But once it gets adopted really well. So you need to do the same education for your B to C users as you need to do internally.”
What-if
Weitzman: LLMs provided confidence to challenge doctor and locate specialized scanner
“I would have never had the confidence to push on the doctor so hard to get the scan if I didn't have LLMs open during the conversation with the doctor. I definitely would not have found another machine, got my dad scanned, and then figured out.”
Insight
Weitzman: Adversity quotient matters more than IQ or EQ in candidates
“People talk a lot about IQ, intelligent quotient, or EQ, emotional quotient, but the most important one is AQ, adversity quotient.”
Insight
Weitzman: High-impact work requires over five continuous hours of problem solving
“The things that really move the company are on the other side of five hours of grappling with a hard problem.”
Assertion Not checkable as stated
Stebbings: Strained parental relationships correlate with successful founders
“Struggles in parental relationships often signify very successful founders, sadly.”
Opinion
Stebbings: Early hires calling themselves 'founding' advisors is a major red flag
“Like, for me, I'm like, I hate the people that are like founding GTM advisor, and it's like, no, no, no. You're just a GTM hire that was one of the first. You don't look like a founding, this like, everything needs to be a founding role. Fuck off.”
Prediction Not checkable as stated
Weitzman: Speechify will never hire candidates motivated primarily by higher pay
“Terrible answer. Never would hire that person, not in a million years.”
Assertion Supported
Weitzman: 40% of incarcerated people have dyslexia versus 17% of general population
“40% of people who are incarcerated have dyslexia, even though 17% of the population has it.”
Assertion Contradicted
Weitzman claims 40% of billionaires are dyslexic
“So 40% of billionaires also have dyslexia.”
Insight
Weitzman: Dyslexia and ADHD suit large company CEOs, not early-stage builders
“It's great to be dyslexic or ADHD as the person who is running a large company, and it's not great as the individual person who needs to build the company.”
Prediction Not checkable as stated
Weitzman: Internal AI coaches will become standard corporate roles in five years
“Coach. So, One thing that we do a lot in Speechify is coach people on how to use AI better. Force them to use AI better.”
Assertion Open · timeframe May 2026
Speechify received 178,000 applications for engineering positions in one year
“Last year we had a 178,000 people who joined, who applied to work at the open engineering positions at Speechify.”
Assertion Not checkable as stated
Nearly 20,000 applicants completed Speechify's asynchronous engineering test
“We have an asynchronous technical challenge. 19,800 people finished that challenge.”
What-if
Stebbings: Investing in every met founder would yield 17x greater success
“If I'd invest in every founder that I'd met, every founder that I've met, I'd be 17 X more successful. One seven X more successful. I would have had two and a half percent of deal. I would have had two percent of 11 Labs. I'd have a seed check in Flettersport,…”
Insight
Weitzman: Be trigger-happy to hire top talent regardless of cost
“If you can really trust someone, you can afford to pay them significantly more, and it's actually just hire the person for more money, and if they don't work out, you part ways. Like, it's fine. You should always be trigger-happy to hire really good people if …”
Insight
Stebbings: Interview red flags only worsen after hiring
“Also, when you get spidey senses in the interview process, listen. Like, it will only get worse post-hire. What I mean by that is when someone, they just get the feeling that, you know, they really actually want to be an investor, not in finance. Trust me, whe…”
Opinion
Weitzman: Google Hires Lack Hunger and Infest Startup Culture With Bad Habits
“Typically we found, this is my personal experience, when we hire folks from Google, they come from a place of a ton of abundance. So the hunger is not the same hunger. And you need to coach them out of essentially bad habits. And that can infest your culture i…”
Opinion
Weitzman: Bay Area and NY Tech Workers Have Much Less Loyalty Than Europeans
“The other thing is, this is true in general of hiring in the Bay Area, the loyalty is a lot less high than you would get from hiring in Europe. Because in Europe, people really value a good company and a good job, and it's just not the same thing in New York o…”
Assertion Not checkable as stated
Weitzman: Speechify Has Only Ever Had One Long-Term Employee Attrition
“We've only had one real case of attrition at Speechify of someone who, like, worked with us for a long time, and that person went to work for Elon Musk directly.”
Insight
Weitzman: Employees quit over unfulfilled life circumstances, not money
“But people typically leave not for money. They leave for another thing in their life that's not satisfying them. Because they're, for whatever reason, not satisfied. Figure out what's not satisfying and solve that thing for the purpose. And sometimes it's mone…”
Assertion Not checkable as stated
Cliff Weitzman: There are virtually no jobs for current CS graduates
“If you look at this graduating class of computer science students, there's basically no jobs.”
Opinion
Weitzman: Speechify favors older hires over younger engineers for AI coding
“I have a bent towards older hires. Because they read textbooks about software engineering When they see what's coming out of the LLM output, they understand it.”
Assertion Partly supported
Speechify's engineering interview tests candidates on using LLM agents to fix code
“A prerequisite is we have like this entrance exam. There's this gigantic code repo that you need to read very fast. You can't read it with your eyes. You have to use AI. You have to use LLMs to ship all the features, and then you get a test at the end, which i…”
Insight
Weitzman: Prior experience is a poor predictor of candidate AI skills
“Sometimes people tell you that they're great at AI and then you give them the challenge and they suck. You just got a test. And sometimes people have never used AI before, and you force them to sit with it for 48 hours, and by the end of the 48 hours, they're …”
Opinion
Weitzman: People under age 45 are unwilling to make phone calls
“And I think that at this point, like, people above 45 are willing to call, and below 45 are not, because everybody's like, that skill has atrophied.”
Insight
Cliff Weitzman: Enforce deadlines using shared calendar invites, not meetings
“So always at a deadline. And it goes on a calendar with multiple people on the invite. So I'm going to ship this to production by, not Tuesday, by three PM on Tuesday. Invite Rohan Simon-Cliff. Pankaj. So everybody knows. And then sometimes we have calendar in…”
Assertion Partly supported
Weitzman: Speechify's early hires from Apple and Snapchat failed within three months
“We had two people that we hired from Apple and Snapchat, like very legit people. And they messed up the culture of the company. They would leave at 5:30 p.m. They like didn't live and breathe the company. And in the end, both of them quit after three months.”
Insight
Stebbings: Every young startup founder succumbs to big corporate resume bias
“I've never, ever not seen a young founder not fall for big logos. Ever.”
Disclosure
Speechify has never succeeded in running profitable ads on Snapchat
“One, we try to run ads on Snap all the time. We never succeed.”
Opinion
Weitzman: Meta is completely eating Snapchat's lunch
“I think they're overpaying creators, left, right, and center. And I just think that the lunch is completely eaten by meta at this point.”
Insight
Cliff Weitzman: Most long Slack messages should be phone calls
“Most long Slack messages should have been a phone call.”
Insight
Weitzman: Performance reviews fail due to lack of upfront goal communication
“So the problem is that you didn't communicate to them ahead of time what the goal was.”
Insight
Weitzman: Engineers get zero credit until code is shipped to production
“And so I have a philosophy that if you made something amazing, but it's not a production, it's a waste of time. Like you sh like you get no credit unless it's in production.”
Insight
Weitzman: Test Struggling Engineers in QA Before Firing Them
“So before letting them go, I'd actually rather put them in QA for a little bit, see how well they do in QA. And if they do well there, that tells me something. And we should not get rid of that person. Like, we should just coach them properly. But if they're a…”
Insight
Weitzman: Meetings Become Central Only in Companies Lacking Clear Direction
“The places where meetings get Like, become a core of a company is companies that don't know their direction, and so the meetings are used to try and find the direction.”
Insight
Weitzman: Team Leaders Should Be Their Team's Strongest Individual Contributor
“Like you should be the strongest individual contributor in your team if you're leading that team. If you need a people manager, we'll give you a people manager to manage the communication. But I want you mainly hands on keyboard coding, designing, talking to u…”
Insight
Weitzman: Replace Management Meetings with Daily Top Three Priorities
“Just have a habit of your team sends you their top three priorities every single morning. You don't respond unless the direction is bad, in which case you tell them this is the correct direction to go.”
Insight
Stebbings: Great talent does not require management or vacation monitoring
“And bluntly, I don't think great people need that much management. Vacation monitoring is not something that great people need.”
Assertion Not checkable as stated
Speechify surpassed $5M in annual revenue four years after launching
“By four and a half years in, yeah, we were making more than five million dollars at that point.”
Assertion Contradicted
Weitzman: Speechify holds 94% of the B2C voice agent market
“We have 94% of the B to C voice agents market.”
Assertion Not publicly verifiable
Weitzman: Speechify reads to users more than any other AI product
“We read more to people than any other AI product in the world.”
Prediction Held up
Weitzman: Speechify enterprise sales team will use forward-deployed engineers
“Now that is exactly what we're doing now, but like front deployed engineers.”
Insight
Weitzman: Exponential personal growth comes from leveraging larger existing platforms
“And one of the common themes I saw is people sometimes have this exponential growth between the age of 29 and 35. And one of the things that happens is they're like a virus. They attach themselves to a larger organization from within, they license that organiz…”
Opinion
Weitzman: Union Square Ventures has storied name but lacks strong leadership
“What I would do is I would join Union Square Ventures. I would join an institution that has a really storied name, but doesn't have particularly strong leadership. And I would become the leadership for that organization.”
Opinion
Weitzman: MrBeast Intuiting Organic Content Conversion Is Driven by Data
“Jimmy knows what's going to convert in organic content. He just like, he has the algorithm in his head and it's just data. Like he has spent between the age of the 13 and today just studying what converts and he just like his dialed in on human psychology is i…”
Insight
Weitzman: Language-Free Content Performs Best Globally
“The content that converts the best is content that doesn't even require language because that works at every single continent of the world.”
Disclosure
Weitzman: Speechify's Top Ads Feature Books Instead of PDFs
“For example, for us, PDF is a complicated concept. Book is not a complicated concept. So our best performing ads include books, not PDFs.”
Opinion
Weitzman: Live Streaming Is Now the Best Format for Content Creators
“Now, the best place to be a creator is to be a streamer. Partly because streams get clipped, and then those clips can get watched seven billion times in a week on TikTok and Instagram Reels and all these other places.”
Disclosure
Cliff Weitzman: Brother Tyler made 36x return on levered Nvidia options in 2022
“I just bought a bunch of NVIDIA stock directly. Tyler bought a three X levered option. It's now like 36 X up.”
Disclosure
Cliff Weitzman: Invested one-third of his money into Tesla in 2015
“Now my undergrad was renewable energy engineering. I put one third of my money into Tesla in 20, 25, sorry, 2015.”
Insight
Harry Stebbings: Investors must diversify broadly to identify elite founders to concentrate in
“The biggest lesson I have in 10 years of investing is you have to diversify to concentrate, and it, actually, what I mean by, I should have invested in everything, and I should have done, to find The Alan Changs, the Adam Ferogis, the Cliff Weitzmans. You have…”
Prediction Not checkable as stated
Weitzman: Nvidia's 35x multiple is reasonable and stock has more upside
“35 is reasonable given how much they're growing. So yeah, I think they have a lot more juice.”
Assertion Contradicted
Weitzman: Hydroelectric capacity is fully maxed out globally
“So all the dams that can be dammed have been dammed. Hydro power is like the most efficient and easiest way to create. We just don't have ability to invest in hydro more.”
Insight
Weitzman: SolarCity succeeded as a financial innovator, not tech innovator
“SolarCity was not a technology company. They were a finance company that had convinced, I think it was JP Morgan, to amortize the value of a solar panel over 30 years, and they got them to underwrite the value of that.”
Insight
Weitzman: A/B Testing Is Abdicating Decision-Making to Users
“A-B tests are abdicating decision making to the user.”
Insight
Weitzman: Product-Market Fit Requires Iteration, Not Repositioning
“The most important thing for product market fit is not repositioning your product. It just stay in the game. Keep making iterations until it fits like a glove, and then you'll find success.”
Assertion Not checkable as stated
Weitzman: Speechify lost hundreds of thousands of dollars in model hack
“The amount that we lost was like a couple of 100,000 dollars, but it was like not crazy.”
Assertion Not checkable as stated
Weitzman: Speechify cut voice AI inference costs to single-digit dollars per million characters
“And we got it to the point of single digit dollars for a million characters.”
Assertion Supported
Weitzman: ElevenLabs inference costs range from $30 to $100 per million characters
“For the like standard model is anywhere from 70 to a hundred bucks. And for the V three fast model, it's like 30 bucks.”
Assertion Not checkable as stated
Weitzman: Speechify has been profitable for a long time due to low inference costs
“And that's why the company has been profitable for so long.”
Assertion Not checkable as stated
Weitzman: Speechify users do not churn because the tool is essential
“If you need a wheelchair, you're not going to churn from your wheelchair in the same way that people don't churn from Speechify.”
Prediction Open · timeframe May 2031
Weitzman: Apple will launch a Whisperflow competitor rather than acquire it
“Does Apple buy Whisperflow? No. Apple launches a competitor.”
Assertion Contradicted
Weitzman: AirPods made more revenue than Spotify and audio competitors combined
“And by the way, AirPods made more money Then Spotify and almost every other audio company put together every single year for the last seven years.”
Assertion Contradicted
Weitzman: Podcasts and audiobooks have reached 40% penetration in most markets
“Podcasts and audiobooks have 40% penetration in most markets today.”
Assertion Supported
Weitzman: Sam Altman has raised more money than anyone in Silicon Valley history
“No one has raised as much money as Sam Altman in the history of Silicon Valley like that.”
Opinion
Weitzman: Anthropic is running circles around OpenAI in coding
“Anthropic is running circles around them right now, like especially in the coding arena.”
Disclosure
Weitzman: I use Anthropic for everything and almost never use ChatGPT
“I right now use Anthropic for everything, and I do not use Chachapiti for almost anything”
Opinion
Weitzman: Government should provide free smartphones as a basic human right
“So like, first of all, my personal opinion, the government should give a free Android to everybody who wants one. Like you should be able to go to the social security office and just get a phone. Like it's a basic human right at this point, in my opinion.”
Disclosure
Weitzman: Long Meta as AI software tools elevate distribution value
“Which is by the way, why I'm really long meta in a world where it's easy to do engineering and easy to do design, more things launch and go to market. It becomes the most important thing.”
Prediction Not checkable as stated
Weitzman: AI will drive a wave of adults over 40 returning to school
“I think there will come a wave of people going back to school after the age of 40, but school will be different.”
Opinion
Weitzman: ChatGPT effectively estimates body fat percentage and designs workout routines
“Take photos of yourself and upload them to ChatGPT. Ask it, what body fat percentage am I, and what do I need to improve? And it's so good at giving you information now. And then ask it for the workout routine to take the parts of your body that you think you …”
Insight
Stebbings: Younger generations use AI as an operating system for life
“I think Sam Altman said it very well when he said, you know, older people use it as a replacement to Google and younger people use it as their operating system for life.”