Every time I mention 9router, someone recommends omniroute. So I finally tried it for a few days.
It's heavy — my 1+1 VPS can barely run it. But the feature set is actually comprehensive: compression tools, every provider you can think of, even social features like leaderboards and achievement badges.
For free providers without auth, there's about a dozen besides opencode free. Most are obscure small models nobody really cares about. Out of all of them, only opencode free supports IP pool rotation. The rest either skip it entirely or only allow residential IPs. And opencode free's rotation isn't a straightforward IP pool fallback either — you have to add multiple keyless accounts and manually assign different IPs to each one to make it work.
I'll give it some time. If nothing stands out, I'm probably switching back to 9router.