Detailed Narrative
Stores Business Performance and Customer Value
Amazon's North America segment grew 10% year-over-year, and the International segment grew 9% year-over-year excluding FX. This growth was driven by an expanded selection, competitive pricing, and improved convenience, leading to worldwide paid units growing 11% year-over-year. Third-party sellers contributed 61% of units sold in 2024, a new annual high. Customers saved over $15 billion in Q4 through low prices and events, with Amazon maintaining the lowest online prices for the eighth consecutive year, averaging 14% lower than competitors.
Fulfillment Network Efficiency and Cost to Serve
The company achieved its second consecutive year of reducing global cost to serve on a per-unit basis, while simultaneously increasing delivery speed and improving safety. Key drivers included the regionalization of the U.S. network, a redesigned U.S. inbound network, improved inventory placement, higher units per package, and reduced travel distances. Management expects further cost reductions in 2025 through continued refinement of inventory placement, expansion of the same-day delivery network, and acceleration of robotics and automation.
Advertising Business Momentum
Amazon's advertising business demonstrated strong growth, generating $17.3 billion in revenue in Q4, an 18% year-over-year increase, and reaching a $69 billion annual run rate. The company is expanding its full-funnel advertising capabilities, from broad-reach brand awareness to bottom-of-the-funnel Sponsored Products. Differentiated audience features leveraging billions of customer signals and advanced attribution models like multi-touch attribution are enhancing advertiser effectiveness.
AWS AI Strategy and Custom Silicon
AWS grew 19% year-over-year, achieving a $115 billion annualized revenue run rate. A core focus is on AI, with significant investments in custom silicon. Trainium2, launched at re:Invent, offers 30-40% better price performance than other GPU-powered instances. AWS is collaborating with Anthropic on Project Rainier, a large Trainium2 cluster, and is already developing Trainium3 and Trainium4, highlighting custom silicon as a unique strength for AWS in the AI space.
AWS Generative AI Services and Core Modernization
Amazon Bedrock, a fully managed service, continues to iterate rapidly, offering a broad choice of foundation models and new features like prompt caching and model distillation. The company also launched its own family of frontier models, Amazon Nova, offering lower latency and 75% lower price. Amazon Q, a generative AI-powered assistant, is driving significant productivity gains, such as saving $260 million and 4,500 developer years in Java JDK migrations, and accelerating mainframe migrations by over 50%. AWS also continues to sign new agreements for core cloud modernization.
Robotics and AI in Retail Operations
Amazon has seen significant cost savings, productivity, and safety improvements from integrating robotics into its fulfillment network. New robotics initiatives, first deployed in Shreveport, are showing encouraging results and are planned for wider rollout. Generative AI is infused into the 'brains' of many robotics, enabling tasks like object recognition and precise movement. AI is also used for productivity in customer service (500 bps better chatbot satisfaction), seller tools, and inventory management (10% better forecasting, 20% better regional predictions).
AI-Enhanced Customer Experiences in Retail
AI is creating altogether new customer experiences in Amazon's retail business. Examples include Rufus, an AI-infused shopping assistant that helps customers find product facts and summarize reviews; Amazon Lens, which uses computer vision and generative AI for product search from images; and AI-driven sizing recommendations based on catalog comparisons. Generative AI is also being used for inventive features in Prime Video's Thursday Night Football broadcasts.