A huge 750 tokens/sec for GPT 5.6 Sol.

The current GPT-5.5 priority and scale-tier service advertises 99% >50 tokens/sec, so Sol on Cerebras is claiming up to 15x that rate.

This huge number is coming from the specialized inference hardware: Sol is being served on Cerebras, whose wafer-scale chip is designed to move model data with far less memory and networking delay than a normal multi-GPU setup.