I've been trying out the 4.1 flash preview for some bulk tasks: it did a pretty good job refactoring a bunch of .metal kernels to .cu. It needed less steering than Opus on refactoring, IMO, and writes better comments. It failed to port a root exploit from modern Android to an older Pixel 3, but I suspect part of that might have been harness configuration (it asked me to give it a longer timeout for tasks at some point, but I didn't have a chance to finish that).

I was getting something like 300-400 tok/s which was just insanity. It was running so much faster than the toolcalls themselves. Honestly, even if it's not quite as strong in reasoning, it just throws so much so fast that it can do a lot more than you might expect.

I'd say it was comparable with GLM5.3 Flash.