in my experience of 1 month daily use, Qwen 3.7 Pro is just unusable. wastes too much time, goes off track, useless stuck loops, cannot debug at all. Deepseek V4 Pro is night-and-day compare to Qwen. actually Qwen models seems the worst SWE experience so far. and it is super expensive compare to Deepseek. cannot delegate anything to it, cannot use it real-time low-level tasks either. totally unusable.
Qwen-3.7-Plus is quite OK, good for subagent use. Way better then Sonnet.
Qwen-3.8-Max-Preview seems working just fine for me at the moment - I am playing with is right now but too early to say anything. At 10% of regular price it is a steal so far.