OpenAI announced a preview of Ultrafast, a new API service tier that runs GPT-5.6 Sol up to 14× faster, powered by Cerebras, delivering up to 750 output tokens per second.
OpenAI introduced a preview of Ultrafast, an API service tier for GPT-5.6 Sol that achieves up to 14× speed improvement and up to 750 output tokens per second, powered by Cerebras.
The Ultrafast tier leverages Cerebras hardware to accelerate GPT-5.6 Sol inference, achieving up to 750 output tokens per second, a 14× speed increase over standard tiers.
This preview signals OpenAI's move to offer differentiated inference speed tiers, potentially reshaping API pricing and performance expectations in the AI industry.
Ultrafast could enable latency-sensitive applications and reduce operational costs for high-volume API users, enhancing OpenAI's competitive position.
Observable next signals include general availability of Ultrafast, pricing details, and adoption metrics among developers requiring high-throughput inference.