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Google splits its AI chips in two - training versus thinking

Google Cloud · event date: 22 April 2026Infra

Google Cloud split its new TPU chips in two - 8t for training, 8i for inference. Price-performance climbs up to 2.7x, and a single training cluster reaches over a million chips.

In short
  • Google split the TPU generation in two: 8t for training and 8i for inference (April 22).
  • 8t: 12.6 PFLOPs and up to 2.7x better price-performance; 8i: 10.1 PFLOPs and up to 80% better inference.
  • The scale: over 1 million chips in a single training cluster; the Virgo network links 134 000+ chips.
Checked on30 June 2026Responsible editorTsvetelin IvanovHow we workMethod · Corrections

One chip for training. Another for thinking. Google Cloud split the new TPU generation exactly that way - 8t for training, 8i for inference (execution and reasoning). The architecture splits because the work is no longer one thing.

The numbers: TPU 8t - 12.6 PFLOPs (FP4), 216 GB HBM, up to 2.7x better price-performance for training versus the previous Ironwood. TPU 8i - 10.1 PFLOPs, 288 GB HBM, up to 80% better price-performance for inference. Both - up to 2x better efficiency per watt. The scale: over 1 million chips in a single training cluster (a connected network of chips); the Virgo network links 134,000+ 8t chips at 47 petabits/sec.

What sticks and what's noise here? The key is the split itself - training versus thinking. For a long time one chip did everything. Now Google admits that training a model and running it are different jobs - and it builds different hardware for each, to save power and money separately.

The number 'a million chips' sounds abstract, but it means something concrete. The next giant models don't hinge on one smarter chip, but on whether you can orchestrate an entire factory of them without the network choking. From there on, the race is as much logistics as silicon.

The visual is generated code art. No third-party images.
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→Google Cloud - TPU 8t/8i deep dive
Original: https://wearecoded.com/en/articles/google-tpu-8.html
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