The Collapsing Firewalls of Venture Capital: How the AI Boom is Breaking Silicon Valley’s Oldest Rule

For decades, the unwritten code of Silicon Valley venture capital rested on a foundation of absolute exclusivity. A traditional VC firm simply did not back two companies fighting in the same sandbox. To invest in a direct competitor was viewed as a cardinal sin—a gross violation of trust that compromised board-level confidences, fractured founder relations, and signaled an institutional conflict of interest.

However, the unprecedented velocity and sprawling ambitions of the generative artificial intelligence boom have placed this sacred rule under severe, perhaps terminal, strain.

Speaking at the TechCrunch Disrupt conference, partners from Benchmark—one of Silicon Valley’s most storied and fiercely independent early-stage venture firms—admitted openly that the industry’s traditional boundary lines are buckling. What was once an absolute taboo is increasingly becoming an unavoidable casualty of a market where software development costs are plunging toward zero, and ambitious AI startups are racing to conquer every available inch of technological terrain.

The Main Facts: A Paradigm Shift in Venture Capital

The tension between traditional VC ethics and modern AI hyper-growth is no longer a theoretical debate; it is erupting into messy, public warfare.

The structural integrity of the "no-competing-startups" rule has been on the verge of snapping for years. Consider the foundational giants of the generative AI revolution: OpenAI and Anthropic share a massive overlapping roster of institutional backers. When capital requirements reach tens of billions of dollars, the pool of investors capable of writing such checks naturally shrinks, forcing traditional rivalries under single umbrella funds.

Yet, the conflict extends far beyond elite mega-labs into the hyper-competitive arena of early- and growth-stage software. The fault lines were violently exposed in late September when Factory, an AI startup specializing in autonomous software-engineering agents, publicly ousted board observer and advisor Chris Degnan. The catalyst? Allegations of "unethical conduct involving Cognition," Factory’s direct rival and the creator of the Devin coding agent.

Factory’s chief executive alleged that Degnan had engaged in employment discussions with Cognition while actively privy to sensitive, board-level strategy discussions at Factory. Degnan countered that he had already resigned from his advisory post and vehemently denied leaking confidential information, shortly thereafter announcing his appointment as Cognition’s chief revenue officer.

The dispute devolved into a public spectacle when powerhouse investor Vinod Khosla leaped into the fray on social media. Defending Degnan, Khosla—whose firm, Khosla Ventures, counts both warring startups among its portfolio—publicly blasted Factory’s CEO, dismissing the company as "a struggling second-tier competitor."

This public airing of dirty laundry laid bare the existential crisis facing multi-company investors: when a venture firm backs overlapping companies, the potential for catastrophic conflicts of interest shifts from a remote risk to an everyday reality.

Chronology of a Crisis: From Unwritten Code to Open Conflict

To understand how Silicon Valley arrived at this precipice, it is necessary to trace the evolution of venture capital ethics alongside the acceleration of the AI economy.

• The Pre-AI Era (1990s–2010s): The golden rule of venture capital dictated strict exclusivity. Firms like Benchmark built their reputations on deep, long-term partnerships—often lasting 10 to 15 years—with founders at the seed and Series A stages. Backing a direct competitor was treated as an immediate disqualifier, assuring founders of their investors’ undivided loyalty.
• The Rise of Generative AI (2022–2023): Following the public launch of OpenAI’s ChatGPT, venture capital flooded into the generative AI space. Due to the astronomical capital requirements demanded by compute power and specialized talent, elite VC funds began backing multiple foundational layers of the AI stack, laying the groundwork for future portfolio collisions.
• The Infrastructure Overlap (2023–Early 2024): Mega-funds and crossover investors routinely backed both OpenAI and Anthropic, normalizing the presence of shared institutional investors among direct competitors, though mostly confined to the highest tiers of the market.
• Late September 2024: The friction breached the early-stage ecosystem. The public clash between Factory, Cognition, and Khosla Ventures shattered the illusion that early-stage startups were immune to the cross-portfolio espionage and strategic betrayals typical of later-stage corporate battlegrounds.
• TechCrunch Disrupt (Late September 2024): Benchmark partners Eric Vishria, Chetan Puttagunta, and Peter Fenton take the stage to address the elephant in the room. In candid remarks, they acknowledge that while exclusivity remains the gold standard, the reality of rapidly mutating AI business models makes portfolio conflicts an inevitability rather than an anomaly.

Supporting Data and Market Dynamics: Why AI Changes Everything

The collapse of the exclusivity norm is not driven by a sudden moral laxity among venture capitalists, but rather by fundamental shifts in software economics and startup behavior.

According to Benchmark partner Chetan Puttagunta, the core driver of the phenomenon is the dramatic deflation of software development costs. As artificial intelligence drastically lowers the cost of building code and engineering digital products, the traditional barriers to entry have disintegrated.

Consequently, founders are operating with unprecedented ambition. In the pre-AI era, a startup typically carved out a narrow, defensible niche. Today, because artificial intelligence allows young companies to visualize and target an expansive "surface area" of the market right out of the gate, startups routinely drift into competitor territory. A company that begins as an enterprise workflow automation tool might rapidly evolve into an AI data analytics provider, inadvertently crashing into another portfolio company founded six months prior.

"The harsh reality of this world is every company is evolving very quickly," Benchmark partner Eric Vishria explained during the Disrupt panel. "Companies pivot and change… and you are going to get conflicts, and that’s just the reality of the current dynamic."

Puttagunta draws a sharp analytical distinction between two types of conflicts:

1. Inception-Stage Overlaps: Backing two direct competitors from day one. Puttagunta calls this "an easy answer"—virtually every top-tier firm avoids this outright because it poisons trust before a company even launches.
2. Evolutionary Overlaps: A portfolio company that starts in one lane quietly or aggressively expands into another company’s turf over time as its product suite matures. "That happens," Puttagunta noted, describing it as an almost organic byproduct of modern tech acceleration.

Official Responses: The Benchmark Perspective

Benchmark occupies a unique pulpit in Silicon Valley. Known for its strict discipline, non-hierarchical partnership, and foundational early-stage bets (including early stakes in Uber, eBay, and Twitter), the firm’s philosophy is deeply intertwined with founder trust. Yet, even Benchmark’s veteran partners concede that the landscape has shifted beneath their feet.

Peter Fenton offered a stark psychological framing of the issue, labeling cross-portfolio conflicts as the ultimate "kryptonite" for venture capitalists and describing it as the firm’s single toughest operational hurdle.

Fenton mapped the spectrum of investor relationships:

• The Co-Founder End: At one extreme sits the classic early-stage venture partner who operates almost like a co-founder—deeply embedded in strategy, culture, and recruitment, and who would morally object to working with a competing venture.
• The Public-Market Stock Picker: At the opposing extreme sits the public equities investor, who views companies purely as financial assets and feels no ethical qualms about holding competing stocks in a diversified index.

Benchmark, Fenton emphasized, resolutely positions itself near the co-founder end of the spectrum. For the firm, transparency is the ultimate safeguard against conflict. "There shouldn’t be the surprise after the fact," Fenton argued, asserting that if a conflict inevitably materializes down the road, the affected founder must never be left feeling shortchanged or deceived.

Weighing in on the specific mechanics of information leakage, Eric Vishria downplayed the idea that venture capitalists serve as active conduits for proprietary technology. "We are not product or technology experts," Vishria noted, suggesting that a VC’s value lies in governance and capital allocation rather than deep technological espionage. While expressing relief that Benchmark has thus far managed to avoid the "insane direct conflict" seen between Factory and Cognition, Vishria admitted that while exclusivity remains vital at the seed stage, "things are evolving. There’s no doubt about that."

Broader Implications for the Silicon Valley Ecosystem

The admission by Benchmark that the old rules are breaking down carries profound implications for the future of the venture capital industry and the entrepreneurs who fuel it.

1. The Erosion of Founder Trust

Trust is the primary currency of early-stage venture capital. When top-tier investors signal that cross-portfolio friction is inevitable, founders will increasingly view their board members with heightened skepticism. The paranoid fear that proprietary product roadmaps or client lists could inadvertently—or deliberately—benefit a competing portfolio company will change how founders interact with their investors. Expect to see stricter confidentiality clauses, more aggressive non-disclosure agreements, and a rise in founder-friendly governance structures.

2. The Rise of "Clean Room" VC Practices

As portfolio overlap becomes standard, elite venture firms will be forced to implement institutional "firewalls." Similar to investment banking Chinese walls, VC firms may soon need to silo partners, restrict internal access to board materials, and formalize conflict-of-interest disclosures during the initial term sheet negotiation phase.

3. Consolidation and Mega-Funds

The pressure is particularly acute for mega-funds writing massive checks across multiple stages. Smaller, boutique venture firms that maintain strict limits on fund sizes and portfolio counts may find a competitive advantage in offering "pure-play" exclusivity. Founders who fear becoming collateral damage in an AI land grab may increasingly bypass multi-strategy generalists in favor of specialized, conflict-free micro-VCs.

Conclusion: A Brave New World

Benchmark is not officially declaring the death of the venture capital exclusivity pact. The firm continues to preach the gospel of early-stage loyalty, transparent communication, and deep founder alignment.

Yet, the subtext of their admissions at TechCrunch Disrupt is undeniable: the gravity of the artificial intelligence boom is warping the traditional laws of venture physics. When a firm whose institutional reputation rests on unyielding loyalty openly concedes that turf wars and portfolio collisions are the new normal, the rest of Silicon Valley must take notice. For founders navigating the high-stakes, hyper-accelerated AI gold rush, the message is clear—the protective walls of venture capital are crumbling, and navigating the wilderness will require more vigilance than ever before.