But in 10x the time?

that's a matter of hardware, Cerebras reports 1500 tok/s

https://inference-docs.cerebras.ai/models/qwen-3.8-27b

Input $0.99 Output $1.49

That times 5 is steep!

Getting close to 80 tok/s on the dgx spark with NVFP4

https://spark-arena.com/leaderboard

(you'll have to filter model yourself, no query params)