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Introducing OpenAI GPT-5.3-Codex-Spark Powered by Cerebras>

The Future of AI is Wafer Scale

Four trillion transistors. 125 petaflops. One silicon wafer. The world’s largest and most powerful processor for AI training and inference.

The WSE-3 is the largest AI chip ever built, measuring 46,255 mm² and containing 4 trillion transistors. It delivers 125 petaflops of AI compute through 900,000 AI-optimized cores — 19× more transistors and 28× more compute than the NVIDIA B200.

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Wafer Scale Engine 3

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Performance comparisons are based on third-party benchmarking or internal testing. Observed inference speed improvements versus GPU-based systems may vary depending on workload, configuration, date and models being tested.

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