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AI Investor Loyalty Crumbles: How Top VCs Are Betting on Both OpenAI and Anthropic
San Francisco, CA – February 2025: The traditional venture capital playbook is undergoing a seismic shift as artificial intelligence companies secure unprecedented funding rounds. Recent revelations show at least a dozen prominent investors now hold positions in both OpenAI and Anthropic, two of the most significant competitors in the generative AI landscape. This development fundamentally challenges long-standing norms about investor loyalty and portfolio strategy in Silicon Valley.
Investment patterns reveal a striking trend among venture capital firms. Founders Fund, Iconiq Capital, Insight Partners, and Sequoia Capital all participated in both OpenAI’s upcoming $100 billion round and Anthropic’s recent $30 billion raise. These simultaneous investments mark a departure from traditional venture capital practices that typically avoided direct competitors within the same portfolio.
Historically, venture capitalists marketed themselves as founder-friendly partners who would actively support portfolio companies against rivals. The current AI investment landscape, however, demonstrates how massive capital requirements and extraordinary growth potential are rewriting these rules. Investment firms now prioritize access to transformative technology over traditional loyalty considerations.
The scale of recent AI funding rounds creates unique dynamics in the investment community. OpenAI’s potential $100 billion valuation and Anthropic’s $30 billion raise represent capital requirements that exceed traditional venture thresholds. These amounts approach public market scales, forcing investors to reconsider traditional portfolio construction approaches.
Several factors contribute to this shift:
One particularly notable case involves BlackRock, whose affiliated funds joined Anthropic’s funding round despite senior managing director Adebayo Ogunlesi serving on OpenAI’s board. This situation highlights how large asset managers operate differently from traditional venture firms. BlackRock manages numerous fund types with varying mandates, making simultaneous investments in competitors more common in their investment framework.
Asset managers like BlackRock, Fidelity, and TPG approach these investments through a public markets lens, where holding competing stocks is standard practice. Their participation in private AI rounds reflects how these companies have reached scale typically associated with public corporations.
Venture capital firms historically maintained clearer boundaries around competitive investments. The industry built its reputation on providing strategic support and maintaining confidentiality with portfolio companies. Startups typically share sensitive business information with investors that isn’t publicly disclosed, creating potential conflicts when those same investors fund direct competitors.
Several venture firms continue following traditional practices. Andreessen Horowitz backs OpenAI but not Anthropic, while Menlo Ventures supports Anthropic but not OpenAI. Other firms maintaining single-company positions include Bessemer Venture Partners, General Catalyst, and Greenoaks Capital. These firms represent the remaining adherence to conventional venture capital ethics regarding competitive investments.
OpenAI CEO Sam Altman’s background as former president of Y Combinator gives him particular insight into venture capital dynamics. In 2024, reports emerged that Altman provided investors with a list of OpenAI rivals he preferred they avoid funding. This list reportedly included Anthropic, xAI, and Safe Superintelligence – all companies founded by former OpenAI employees.
Altman later clarified that investors wouldn’t be barred from future rounds for backing these companies. However, he acknowledged that making “non-passive investments” in competitors could affect access to OpenAI’s confidential business information. This position reflects growing founder concerns about investor conflicts in the intensely competitive AI sector.
The changing investment landscape requires founders to adopt new due diligence practices. Conflict-of-interest policies should become standard discussion points during term sheet negotiations. Founders must now ask specific questions about:
These considerations become particularly crucial when accepting investments from firms with broad AI portfolios. The traditional assumption of investor exclusivity no longer holds in today’s funding environment.
Reactions within the venture community reveal divided perspectives on this trend. Some investors express concern about potential conflicts, particularly regarding board seats and confidential information. Others adopt a more pragmatic view, noting that without formal board positions, the perceived harm remains minimal.
The situation raises important ethical questions about:
The AI investment landscape will likely continue evolving as the technology matures. Several trends suggest how these dynamics might develop:
The extraordinary capital requirements of AI development may continue driving unconventional investment patterns. As AI companies increasingly resemble infrastructure providers, investment approaches may shift toward utility-style financing models with different conflict considerations.
The simultaneous backing of OpenAI and Anthropic by prominent investors signals a fundamental transformation in venture capital practices. Traditional concepts of investor loyalty face unprecedented challenges in the AI era, where technological potential and capital requirements outweigh conventional competitive concerns. This shift requires both investors and founders to develop new frameworks for managing relationships in increasingly complex competitive landscapes. The AI investor loyalty question reflects broader changes in how venture capital adapts to transformative technologies with winner-take-most potential.
Q1: Which venture capital firms invest in both OpenAI and Anthropic?
Several prominent firms hold positions in both companies, including Founders Fund, Iconiq Capital, Insight Partners, and Sequoia Capital. These dual investments represent a significant departure from traditional venture capital practices.
Q2: How do these dual investments affect startup founders?
Founders must now conduct more thorough due diligence on investor portfolios and establish clear conflict-of-interest protocols. The traditional assumption of investor exclusivity no longer applies, requiring new approaches to investor relationships and information sharing.
Q3: What distinguishes asset managers from venture capitalists in this context?
Asset managers like BlackRock and Fidelity approach investments through a public markets framework where holding competing stocks is standard practice. Traditional venture capitalists historically avoided direct competitors within their portfolios to maintain strategic alignment with founders.
Q4: How has Sam Altman responded to investors backing competitors?
Altman reportedly provided investors with a list of OpenAI rivals he preferred they avoid funding. While not barring investors from future rounds, he indicated that “non-passive investments” in competitors could affect access to OpenAI’s confidential business information.
Q5: Are there venture firms that still avoid competitive investments?
Yes, several firms maintain traditional positions. Andreessen Horowitz backs OpenAI but not Anthropic, while Menlo Ventures supports Anthropic but not OpenAI. Other single-company investors include Bessemer Venture Partners, General Catalyst, and Greenoaks Capital.
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