In my testing, I'm finding it more expensive than Opus 4.8/5 and GPT 5.6 Sol at API rates, because it chews so much. And, their plan (at least the $19 tier) is much less generous than the ChatGPT $20 plan, like an order of magnitude less, it's basically a demo not a useful amount of usage.

Yeah can't recommend their $19 plan, only took me a day and a half to hit the weekly usage cap. The $39 plan has 5x the limits so I recommend getting that instead. Having now tested it for a few days, it is the first of the chinese models that actually feels comparable to Opus-tier models