AI ToolsAug 13, 2026, 10:00 AM

Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed

30-second summary

OpenAI previewed an Ultrafast API tier that runs the GPT-5.6 Sol model up to 14 times faster, delivering up to 750 output tokens per second. The tier is powered by Cerebras hardware.

TickrWire
Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed
Key takeaways
  • Ultrafast tier provides up to 14× faster token generation for GPT-5.6 Sol.
  • Capable of producing about 750 tokens per second using Cerebras hardware.
  • Targets developers needing low‑latency AI responses, expanding OpenAI's API portfolio.
  • Represents a strategic partnership between OpenAI and Cerebras to enhance inference speed.
Full story

OpenAI announced a preview of a new service tier called Ultrafast, designed to accelerate the GPT-5.6 Sol model.

The tier claims up to a 14‑fold increase in generation speed, reaching roughly 750 tokens per second, thanks to integration with Cerebras' specialized AI processors.

This performance boost aims to reduce latency for applications that require near‑real‑time text generation, such as chatbots, coding assistants, and content creation tools.

The Ultrafast tier sits alongside OpenAI's existing API offerings, giving developers the option to trade higher cost for substantially faster output.

Sponsored
Why this matters
Developers

Reduces API latency, enabling faster real‑time applications.

Businesses

Allows products to deliver quicker AI responses, improving user experience.

Investors

Signals OpenAI's focus on performance and a partnership with hardware leader Cerebras.

Everyone

AI services become noticeably faster for end users.

Glossary
Cerebras
A company that builds large‑scale AI processors optimized for high‑throughput inference.
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