Warren Buffett, a lifelong advocate of value investing, made a landmark decision before retirement: initiating a position in Alphabet and adding it to Berkshire Hathaway’s top ten holdings. This move sent ripples through the investment world, signaling a paradigm shift in value investing—even the most conservative investors now recognize AI’s long-term potential. Behind this decision lies the evolution of Buffett’s philosophy in the AI era. Alphabet’s self-developed TPU chips, Gemini model, and vast application ecosystems (search, YouTube, cloud services) form a full-stack AI moat—a core tenet of Buffett’s value framework.

Beyond Alphabet, Baidu-SW (09888) stands out globally with the most comprehensive full-stack AI deployment, spanning chips, frameworks, models, and applications, all industrialized at scale. Its Q3 2025 earnings report vividly demonstrates this competitive edge. On November 18, Baidu disclosed two pivotal AI milestones: 1. AI revenue surged 50% YoY, including 33% growth in AI cloud, RMB 2.6B from AI applications, and a 262% jump in AI-native marketing services (RMB 2.8B). 2. Cumulative AI R&D investment since Q1 2023 exceeded RMB 100B, with further increases planned.

The report reflects Baidu’s unwavering commitment to AI leadership through R&D while aggressively integrating AI across products, making it the core growth driver. This is just the beginning. As Baidu deepens its AI tech and commercialization efforts, its ecosystem will accelerate value creation under the "flywheel effect," potentially triggering a major valuation re-rating.

**AI-Driven Business Transformation** Unlike U.S. peers fixated on "scaling model parameters," Baidu prioritizes industrial integration. As a full-stack pioneer (chips to apps), it swiftly launched Ernie Bot post-ChatGPT and became China’s most AI-transformed company. Key highlights: - **Search**: The revamped Baidu Search now delivers 70% AI-generated results (mobile), with daily AIGC content exceeding 10M. It leads China’s AI search with 382M MAU (QoQ +18.6%) and tops IDC’s 2025 rankings for user metrics and tech capability. - **AI-Native Services**: AI agents and digital humans drove marketing revenue up 262% to RMB 2.8B. Products like GenFlow 3.0 (20M users) and "Oreate" (1M+ overseas users) showcase global traction. - **Enterprise Solutions**: Baidu’s self-evolving agent "Famou" outperformed OpenAI’s benchmarks, attracting 1K+ test applications across industries. Digital employees serve 10+ sectors, while Apollo Go (robotaxi) completed 3.1M rides (YoY +212%) and expanded to 22 cities globally.

**Full-Stack AI: The Competitive Moats** Baidu’s four-layer stack—chips (Kunlun P800/M100/M300), framework (PaddlePaddle with 23.3M developers), models (Ernie 5.0: 2.4T parameters, global top-2 in text), and apps—creates an end-to-end flywheel. Kunlun chips’ commercialization (e.g., China Mobile’s RMB 1B deal) and PaddlePaddle’s 760K enterprise users underpin this advantage.

**Cloud Growth & Market Leadership** Baidu AI Cloud, holding 24.6% of China’s public AI market (IDC), saw robust demand for model training/inference. Its Qianfan platform (460K+ enterprises) and Baige’s π0.5 fine-tuning templates reinforce its edge. Clients include 65% of central SOEs, top banks, and automakers.

**Outlook** Baidu’s AI disclosure marks a strategic inflection from investment to harvest. Analysts like Goldman Sachs (HK$150 target) and CICC (RMB 130.7B 2025 revenue forecast) highlight its "inverted pyramid" potential, where models and apps capture disproportionate value. With dual flywheels—**tech synergy** (full-stack innovation) and **commercial feedback** (revenue fueling R&D)—Baidu is poised as a definitive AI-era leader.