Amazon announced that its artificial intelligence and chips businesses have each passed an annualized revenue run rate of $25 billion, alongside reported growth in customer adoption and hardware commitments. According to CEO Andy Jassy, Amazon Web Services grew 36.7% year-over-year in the second quarter of 2026—its fastest pace in 18 quarters—according to the company's earnings release.
Multi-gigawatt capacity commitments
Amazon highlighted growing customer commitments for its proprietary Trainium accelerator line, led by multi-year, multi-gigawatt agreements with Anthropic and OpenAI. While Amazon documented these long-term reservations, the earnings release did not specify regional site schedules, power delivery milestones, or which generations of Trainium hardware would fulfill the commitments.
Beyond the two frontier labs, Amazon reported Trainium commitments from established enterprises including Uber and Pinterest, as well as robotics and generative AI startups such as NEURA Robotics, Odyssey, TwelveLabs, Decart, Poolside, Karakuri, Metagenomi Therapeutics, NetoAI, and Splash Music.
Custom silicon economics and infrastructure spend
AWS operating income reached $16.6 billion for the quarter, up from $10.2 billion in the second quarter of 2025. The release does not separately quantify the contribution of custom silicon to that increase.
Amazon reported that its chips division is expanding at triple-digit percentages year-over-year. To support expanding cloud and AI workloads, trailing twelve-month purchases of property and equipment increased by $66.1 billion year-over-year, which the company stated primarily reflects investments in artificial intelligence infrastructure. Over the same period, trailing twelve-month free cash flow was an outflow of $7.6 billion, compared to an inflow of $18.2 billion in the prior-year period.
Graviton5 general availability
Alongside accelerator momentum, Amazon launched its Graviton5 general-purpose server processor into general availability. Amazon claims Graviton5 yields up to 25% better compute performance than Graviton4, while the broader Graviton line offers 30% to 40% better price-performance compared to unspecified comparable instances. The company stated that Graviton is now used by 98% of the top 1,000 EC2 customers, with revenue commitments growing nearly 3x quarter-over-quarter.
Looking ahead, Amazon warned in its financial guidance that infrastructure deployment remains exposed to resource and supply chain volatility, specifically pointing to memory chip availability, energy pricing, and regional labor constraints as operational risks.