Google opens Gemini’s AI training system to cloud users

Google Cloud Alphabet Inc. ↗ 2.00% announced on Monday, November 9, 2026, that Cloud Pathways is now generally available on Google Kubernetes Engine (GKE). Google DeepMind originally built Pathways, a distributed machine-learning runtime, to train and serve Google's frontier models, including Gemini. The Google Cloud announcement said the release gives "every Google Cloud customer" the same single-controller runtime, colocated Python sidecars and elastic fault tolerance that run Google's largest AI workloads.cloud.google.com

Pathways was one of several infrastructure releases Google made the same day. Google also added two new eighth-generation chips, TPU 8tx and TPU 8i Max, and made GKE dynamic slicing generally available, according to Google's TPU announcement.blog.google

How the runtime works

In standard multi-controller JAX setups, every TPU host runs its own Python interpreter and sees only its own devices. Google says this makes complex, mixed workflows brittle at scale. Pathways replaces that model with a single controller built on the open-source Interim Framework Runtime. One JAX client can then manage several large TPU slices, spanning thousands of chips, "as if they were all connected locally," Google Cloud said.cloud.google.com

The Google Cloud release notes list several resilience features. Elastic training shrinks a job onto the healthy slices when hardware fails and scales it back up when replacements rejoin, without restarting the run. Suspend-resume saves high-bandwidth memory state to Cloud Storage before planned preemptions, and hot-swapping moves interrupted work onto standby slices. Users can also run workloads interactively from a notebook or share a pool of TPU slices through the Shared Pathways Service.docs.cloud.google.cn

The runtime supports Ironwood (TPU7x), Trillium (v6e), TPU v5p and TPU v5e, with JAX 0.10.1 and later, according to the release notes. An integration with Cluster Director that brings Pathways to Slurm clusters is in preview.docs.cloud.google.cn

Customer adoption

Google said customers have used more than 130 million Cloud TPU chip-hours on Pathways on GKE over the past 90 days. It said one of the world's largest consumer technology companies, which it did not name, uses more than 100 million chip-hours per quarter for batch and reinforcement-learning inference, according to the company's blog.cloud.google.com

A long road to GA

Google first said it would offer Pathways to cloud customers at Google Cloud Next on April 9, 2025, so general availability came 19 months later, PPC Land noted. The outlet also pointed out that Google's accompanying developer post gave no pricing and did not say whether the Shared Pathways Service, which links to an experimental code folder, is covered by the general availability.ppc.land

Customer ZenteiQ described what the system does in practice. "Our ML engineers no longer have to spend their hours watching job health or managing manual restarts, and can stay focused on their research workloads," founder Sashikumaar Ganesan said in Google's announcement.cloud.google.com