For decades, top-tier venture capital firms have operated under an unwritten code: once a partner joins the board of a startup, that firm steers clear of funding direct competitors in the same space. The arrangement protected founders' trust in their investors and kept sensitive strategic information from leaking across rival camps. Benchmark, the storied firm behind early bets on companies like eBay, Twitter, and Uber, has built much of its reputation on strict adherence to that principle.
Now Benchmark itself is acknowledging the rule is buckling under pressure from the generative AI gold rush. As capital floods into a narrow set of foundational AI categories, the firm says it's becoming increasingly difficult to avoid overlapping bets when so much innovation is concentrated in the same handful of niches. Multiple startups are often chasing the same technical breakthrough or market opportunity simultaneously, leaving fewer "white space" categories for firms to invest in without bumping into a portfolio conflict.
This matters because the anti-rival pact has long been a pillar of trust between founders and the VCs who sit on their boards. Entrepreneurs have historically accepted board oversight, financial disclosures, and strategic input from their lead investors partly because they knew that same investor wasn't simultaneously advising a direct competitor on how to beat them. If a firm as disciplined as Benchmark is signaling flexibility on that principle, it suggests the norm may be eroding industry-wide, not just at smaller or less prestigious shops.
The shift also reflects how differently AI startups are being valued and funded compared to prior tech cycles. Massive rounds are closing in compressed timeframes, valuations are rising before products are fully proven, and the pool of investable AI infrastructure and application companies is both enormous and fast-moving. That dynamic pressures firms to deploy capital quickly across a sector rather than waiting out exclusivity arrangements that could mean missing the next breakout AI company.
For founders, the implications are significant. Startups may need to negotiate harder on information barriers, board representation, or confidentiality protections if they can no longer assume their lead investor will sit out funding a direct rival. It could also reshape how founders choose investors in the first place, favoring firms willing to make explicit commitments rather than relying on industry tradition.
What happens next will likely depend on whether other major firms follow Benchmark's lead in publicly acknowledging the strain, or whether the norm simply continues eroding quietly deal by deal. Either way, the episode signals that AI's disruptive force is reaching beyond products and markets and into the foundational etiquette of how Silicon Valley itself does business.