Low latency is not the only metric, but it directly affects interaction rhythm. Read it together with availability and current status.
Fit
Low latency helps live chat, short coding help, and support automation.
Long Claude Code and Codex tasks still need sustained stability more than one fast response.
Latency samples
NowCoding: 97.3% availability, 1555 ms average latency, current status up.
JuCodex: 100% availability, 1688 ms average latency, current status up.
SudoCode: 99% availability, 1871 ms average latency, current status up.
YunDou: 100% availability, 1973 ms average latency, current status up.