I’ve never had any problems with MiniMax. I wouldn’t call the speed fast exactly, but it’s faster than GLM and seems similar to Opus.
It’s been fast enough that I’ve been using it as my main model (M2.7 and before that, M2.5). Opus still does better at tasks, but MiniMax is so much cheaper. I’ve used their cheaper plan and I’ve never been rate limited.
https://platform.minimax.io/docs/guides/pricing-token-plan