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R to @OpenAI: Powered by @Cerebras, Ultrafast generates up to 750 tokens per second, bringing our…

Efficiency & Systems @OpenAI 2026-08-13
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TL;DR - OpenAI previewed Ultrafast, an API service tier running GPT-5.6 Sol at up to 750 output tokens per second—up to 14× faster—on Cerebras infrastructure. It targets latency-sensitive enterprise applications where response speed directly affects utility.

  • Supports real-time use cases such as voice, customer support, coding, design, and security response.
  • Extends to commerce and financial research workflows requiring rapid model output.
  • The announcement specifies generation speed, but provides no details on pricing, availability, or benchmark methodology.

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