【Builder Must Read vol.1】In the AI Era of Spending $2 to Earn $1, Founders Who Don't Build IP Are Being Left Out

In 2026, a16z did something strange

They launched an 8-week fellowship program—not training engineers or product managers, but storytellers and content creators. After training, these people are directly placed into a16z’s portfolio companies to help founders with product launches and content dissemination.

The world’s top venture capital firm is systematically teaching founders how to become KOLs.

If you still think “building IP” is optional, this signal is worth reconsidering.

Customer acquisition costs are no longer sustainable

Let’s start with an uncomfortable number: over the past 10 years, the CAC for B2C products has increased by 222%.

In 2025, the cost of a paid lead on Google Ads is over $70, and it’s still rising.

The median in the SaaS industry is even more outrageous—spending $2 to earn back $1 in annual revenue.

In the financial sector, customer acquisition costs exceed $4,000.

It’s not that your advertising isn’t targeted enough; the entire market is increasing prices. Privacy regulations tighten targeting, platform ad spaces are inflating, and competitors are vying for the same user attention.

What’s more, when advertising stops, traffic drops to zero. You might have spent millions on acquisition, but the cost per customer could be more expensive than the product itself. Once the budget is cut, the traffic you’ve bought disappears without a trace.

Meanwhile, a completely different set of data shows:

Organic reach ROI of founder personal content is 388%—and it compounds over time.

Posts by founders generate 33% more leads than official company accounts.

Founder-driven transactions are 3.7 times larger.

Engagement on founder and employee content is 8 times that of company pages.

Two completely different growth logics in the same market: one is paid acquisition, which gets more expensive; the other is building trust through personality, which becomes more valuable over time.

AI is accelerating product homogenization at a speed that leaves you no time to react

In 2024, the number of AI startups worldwide surged from 14,000 to 22,000. Every day, 10-15 new AI products emerge. Venture capital flows doubled.

It sounds prosperous. But on the flip side: in the same year, 966 startups in the US failed (Carta data), many of which are AI wrappers—layers built around ChatGPT.

The window for first-mover advantage in product features has shrunk from “a year” to “3-12 months.”

In August 2024, Google cut the input price for Gemini 1.5 Flash by 78%, and OpenAI reduced GPT-4o by 50%. Underlying models are commoditized, and upper-layer applications are becoming more homogeneous. The features you develop today can be copied by competitors tomorrow.

This isn’t unique to AI. AI accelerates homogenization across all B2C products—because AI makes development faster, design quicker, and iteration more rapid.

When everyone can build an 80-point product in three months, where does the last 20 points of differentiation come from?

Consumers are voting with their money: they choose “people,” not just “products”

98% of consumers believe brand authenticity is crucial for building trust.

71% distrust brands that heavily rely on AI communication.

52% lose interest when they sense AI-generated content.

67% are willing to pay more for brands aligned with their values.

As AI content floods the market, “human touch” becomes more scarce. Human-centered operations are the survival rule for businesses in this era.

Consumers aren’t unwilling to buy AI-era products, but they increasingly prefer brands with a “real person” behind them.

This is the fundamental value of founder IP—not just “founders becoming influencers,” but in an age where AI homogenizes everything, the founder’s personal brand becomes the biggest differentiator.

Let me share some names you’ve definitely heard of

1. Sam Altman—one person shaping the entire AI narrative

Sam Altman’s Twitter has 4.5 million followers, more than OpenAI’s official account with 3.3 million. When Sora launched, Altman tweeted asking fans what they’d like to do with it—1,500 comments and 7 million impressions. This wasn’t a marketing campaign; it was the founder himself posting. In January 2025, he simply said, “We are confident we know how to build AGI”—no product launch, no technical paper, just one sentence that shifted the global AI narrative.

OpenAI’s valuation jumped from $29 billion in 2023 to $300 billion in 2025. Altman’s personal IP is the biggest free accelerator in this growth curve.

2. Aravind Srinivas—researcher turned founder, achieving $21 billion with zero marketing budget

Perplexity CEO Aravind Srinivas is perhaps the most worth studying case of 2025. He’s not a social media star; he’s a machine learning researcher—previously at OpenAI, Google Brain, DeepMind. After founding Perplexity, he personally handles all product communication, never outsourcing to marketing teams. He writes research breakdowns, explains product logic, and responds directly to user feedback on Twitter.

Result? Perplexity’s valuation soared from $150 million in 2023 to $21.2 billion in 2026—133 times. Monthly queries reach 780 million, with 30 million daily. Indian user growth is 640%, largely due to Srinivas’s personal influence as an Indian founder.

No traditional marketing—just founder credibility, product storytelling, and transparent communication. Ask yourself: how much time do you spend weekly and daily in your user community?

3. David Holz—no ads, 20 people, $500 million revenue

Midjourney founder David Holz is even more extreme. Zero marketing budget. The team has only 10-15 people. In 2025, revenue hit $500 million. Over 20 million users.

His strategy? Regular “Office Hours” live streams on Discord—answering user questions, discussing product directions, handling copyright issues. No public releases; all updates are announced only within the Discord community. Users feel like they’re collaborating with an “independent research lab’s idealist,” not just using a company’s product. This trust leads users to organically share their work on Twitter and Reddit—each user becomes a free marketing channel.

4. Alternative case: Duolingo—not founder IP, but similar in essence

Duolingo didn’t pursue a founder IP route; its virtual IP is also a brand persona: turning the brand into a “personality.” A green owl “goes wild” on TikTok—algorithm tracks you, pretends to die, interacts with other brands. Over four years, monthly active users grew from 37 million to 117 million. Whether it’s the founder himself building IP or brand personification, the underlying logic is the same: in an era where AI makes all products look alike, consumers need a “living thing” to connect with. That “living thing” can be the founder or a crazy owl.

5. The ultimate classic: Elon Musk—an extreme double-edged sword

You can’t only say good things about Musk.

With 160 million followers, he’s the most influential founder KOL globally. Grok’s market share increased from 1.9% in early 2025 to 17.8% in 2026, driven by his personal promotion and X platform integration.

But on the flip side: Tesla’s brand value dropped from $58.3 billion in 2024 to $27.6 billion in 2026—a 53% decline. Sales fell 9% in 2025. Why? Musk’s political statements triggered widespread consumer boycotts. Of course, Musk is my hero, and he’s successfully overcome this issue now. I include this only to provide a clear example.

Founder IP is an amplifier—it magnifies everything, good or bad.

This is an era betting on founders who understand how to build IP

VCs are straightforward: a founder’s IP ability determines product market penetration speed and fundraising efficiency.

Weber Shandwick’s research quantifies this: corporate executives estimate that 44% of their company’s market value is directly attributable to the CEO’s reputation. 44%—almost half.

As VCs systematically invest in founders’ personal brands, this has shifted from “nice to have” to essential infrastructure.

But remember: product strength is 1, IP is the zeros behind it.

After sharing these cases, one point must be clear.

Many say, “I have a lot of traffic, but no one uses my product.” That circles back to whether your product is resilient and has a moat. Is your traffic meant to build a brand with user NDA, or just to ride on trending topics or noise that your project doesn’t really need?

The premise of founder IP: product strength is 1, IP is the zeros behind it. Without 1, no amount of zeros is meaningful.

IP amplifies product value—it can’t create value out of thin air. A solid product is the foundation for IP to amplify. Conversely, good products without IP are like 1 followed by no zeros—possible to win, but very slow.

New mandatory course for founders in the AI era

Summarizing the core logic chain:

Out-of-control customer acquisition costs → deteriorating ROI of traditional advertising → need for more efficient growth methods

AI accelerates product homogenization → features no longer a barrier → need for new sources of differentiation

Consumers crave “human touch” → AI content flooding the market makes authenticity more scarce → brands with real people behind them win

These three lines converge on one conclusion: founder IP is the most efficient growth lever for B2C products in the AI era and the most difficult barrier to copy.

If you haven’t started building your own IP yet, and you’re still hesitating, “Our company has so many things to handle, building IP takes too much time”—after reading this article, reconsider.

Start now. DO IT NOW.

This is one of the biggest paths to increasing your company’s success efficiency.