Cerebras just landed a major OpenAI win. $CBRS is powering the new Ultrafast tier for GPT-5.6 Sol, delivering up to 750 output tokens per second — as much as 14x faster than standard mode, according to the companies. The limited preview targets latency-sensitive work including financial research, incident response, security, voice and live experimentation. Early users include Jane Street, Basis and Rogo. The timing matters: Cerebras shares had fallen 13%+ after its Q2 results and guidance disappointed investors. Now the OpenAI partnership gives investors a fresh datapoint on demand for Cerebras’ inference infrastructure. Can AI inference speed become a meaningful competitive advantage for $CBRS?