Which AI stock does Warren Buffett invest in?

Warren Buffett’s biggest AI-related investment is in Apple (AAPL), which is his largest stock holding overall. While Berkshire Hathaway has expanded its technology exposure, Buffett remains cautious about pure-play AI stocks, preferring companies with proven business models that are incorporating AI into their operations.

Buffett’s Approach to AI Investments

Warren Buffett is known for his value-investing philosophy, which favors companies with durable competitive advantages over speculative emerging technologies. His approach to AI reflects this doctrine — he invests in companies using AI to strengthen their existing businesses rather than betting on unproven AI pure-plays.

As of Q1 2025, Berkshire Hathaway’s portfolio included significant stakes in companies leveraging AI:

• Apple (AAPL) — The largest holding, representing over $150 billion. Apple uses AI extensively in its products (Siri, on-device ML) and services ecosystem.
• Amazon (AMZN) — Berkshire held ~$15.4 billion in Amazon as of late 2023, benefiting from AWS AI/infrastructure services.
• Snowflake (SNOW) — A smaller, newer position related to data/AI infrastructure.

What Buffett Has Said About AI

Buffett has compared AI to nuclear weapons in terms of its transformative and potentially dangerous nature. In his 2024 Berkshire Hathaway annual meeting, he expressed both fascination and concern, stating he doesn’t fully understand AI’s long-term implications but recognizes its massive disruptive potential.

Unlike growth investors who rushed into AI pure-plays during the 2023-2024 hype cycle, Buffett has largely sat out those investments. His associates at Berkshire — particularly Ted Weschler and Todd Combs — manage smaller technology positions that may include AI companies.

Key Takeaways for Investors

• Buffett prefers quality companies using AI over pure-play AI stocks
• The Oracle of Omaha himself admits AI is complex and hard to evaluate with traditional metrics
• His largest AI-adjacent holding is Apple — a company embedding AI across its ecosystem
• Retail investors can mirror this approach: focus on established companies with strong AI integration rather than speculating on AI startups
• Buffett’s caution around AI stocks reflects the high valuations and uncertain monetization timelines typical of emerging technology sectors

Bottom line: While Buffett doesn’t own a dedicated “AI stock” in the way growth investors might expect, his portfolio is heavily exposed to AI through Apple and Amazon. For most investors, following his indirect approach — investing in companies using AI to enhance their competitive moat — is more prudent than chasing pure-play AI stocks.