Verdict
Built from the measurements below
- Accuracy is too close to call: GLM 5.3 Flash scored 67.5% and MiMo-V2.6-Pro 68.8% on the same 80 questions, a gap within what chance alone could produce.
- GLM 5.3 Flash is 13× cheaper per question as billed ($0.00015 vs $0.002), reasoning tokens included.
- GLM 5.3 Flash generates text 1.4× faster: 83 tokens per second against 58.
- GLM 5.3 Flash starts answering sooner: 0.5 s to the first token, against 0.7 s for MiMo-V2.6-Pro.
Which should you choose?
Choose GLM 5.3 Flash for the lower cost per correct answer ($0.00022 against $0.0029), faster streaming, a quicker first token, shorter outputs (about 560 tokens per question against 2,157) and more hosts to choose from on OpenRouter (34 against 5).
Accuracy gap -1.2 points (z = -0.17). We call a winner only when z is at least 1.96, the usual 95% threshold. Speed, latency and price need a 10% margin.