Verdict
Built from the measurements below
- Accuracy is too close to call: MiMo-V2.6-Flash scored 62.5% and Qwen3.8 27B 63.8% on the same 80 questions, a gap within what chance alone could produce.
- MiMo-V2.6-Flash is 7.7× cheaper per question as billed ($0.00056 vs $0.0043), reasoning tokens included.
- MiMo-V2.6-Flash generates text 1.6× faster: 77 tokens per second against 49.
- MiMo-V2.6-Flash starts answering sooner: 0.4 s to the first token, against 0.5 s for Qwen3.8 27B.
Which should you choose?
Choose MiMo-V2.6-Flash for the lower cost per correct answer ($0.0009 against $0.0067), faster streaming and a quicker first token. Choose Qwen3.8 27B for more hosts to choose from on OpenRouter (21 against 10).
Accuracy gap -1.2 points (z = -0.16). We call a winner only when z is at least 1.96, the usual 95% threshold. Speed, latency and price need a 10% margin.