Large Language Models

Aug 13, 2026

OpenAI introduces Ultrafast API service for GPT-5.6 Sol with increased speed

Aug 13, 2026

AI Summary

OpenAI has launched a new API service tier called Ultrafast, which utilizes GPT-5.6 Sol to operate at speeds up to 14 times faster than previous versions. This service, powered by Cerebras technology, can produce up to 750 output tokens per second.

OpenAI has introduced a new API service tier named Ultrafast.
The Ultrafast service runs the GPT-5.6 Sol model at speeds up to 14 times faster than earlier versions.
It is powered by Cerebras technology and can generate up to 750 output tokens per second.

gpt-5.6openaiultrafastapicerebras

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