OpenAI Previews Ultrafast Mode for GPT-5.6 Sol: Up to 14X Faster

YeXiu223 · reddit · 2026-08-14

OpenAI is offering an early look at Ultrafast, a new service tier that runs the GPT-5.6 Sol model up to 14× faster than standard processing.

Powered by Cerebras, the service launches first in the OpenAI API and can generate up to 750 output tokens per second, targeting workflows where low latency is critical.

Related event: OpenAI and Cerebras Preview GPT-5.6 Sol Ultrafast Mode at 750 Tokens/s(9 posts)→

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