Epoch AI (https://epoch.ai/data-insights/google-custom-tpus-ai-compute)
Google controls the most AI computing power, driven by its custom TPUs (https://epoch.ai/data-insights/google-custom-tpus-ai-compute)
We estimate Google is the largest single owner of AI compute, holding about one quarter of global cumulative capacity as of Q4 2025, primarily from its own custom TPU chips.