Until a few years ago, gccgo was well maintained and trailed the main Go compiler by 1 or 2 releases, depending on how the release schedules aligned. Having a second compiler was considered an important feature. Currently, the latest supported Go version is 1.18, but without Generics support. I don't know if it's a coincidence, but porting Generics to gccgo may have been a hurdle that broke the cadence.
The best thing about gccgo is that it is not burdened with the weirdness of golang's calling convention, so the FFI overhead is basically the same as calling an extern function from C/C++. Take a look at [0] and see how bad golang's cgo calling latency compare to C. gccgo is not listed there but from my own testing it's the same as C/C++.
Isn't that horribly out of date? More recent benchmarks elsewhere performed after some Go improvements show Go's C FFI having drastically lower overheard, by at least an order of magnitude, IIUC.
Seems doubtful, given that generics and the gccgo compiler were both spearheaded by Ian Lance Taylor, it seems more likely to me that him leaving google would be a more likely suspect, but I don't track go.
They are mostly dealing with the low hanging fruit actors, the current open source models are close enough to SOTA that there's not going to be any meaningful performance difference tbh. In other words it will stop script kiddies but make no real difference when it comes to the actual ones you have to worry about.
Kimi K2 could easily be used for this; its agentic benchmarks are similar to Claude's. And it's on-shore in China, where Anthropic says these threat actors were located.