Vals Index：M3.1 Flash 在开源权重模型中排第 5，编程提升最大
独立评测机构 ValsAI 称 M3.1 Flash 在 Vals Index 开源权重模型里列第 5，仅落后 MiMo V2.6 Flash 一分；所有基准都优于 M3，编程涨幅最大，税务与金融提升较小。
MiniMax M3.1-Flash is now #5 among open-weight models on the Vals Index, just one point behind MiMo V2.6 Flash. M3.1-Flash improved over Minimax-M3 on all benchmarks, but the biggest gains were on coding tasks, with smaller jumps in tax and finance.
M3.1-Flash also made meaningful progress on Vibe Code Bench, improving by 26.4 points and climbing from #64 to #38 overall. The number of apps receiving a zero score fell from 15 to just 3, while the number of perfect apps doubled from 6 to 12. The improvement wasn't limited to polishing already successful apps. M3.1-Flash was substantially less likely to fail outright.
One notable change is how much longer M3.1-Flash reasons through problems. On Tax Agent and Legal Research, it generated roughly 15 times as many output tokens as M3, most of them devoted to reasoning. That additional reasoning likely explains part of the improvement. M3.1-Flash is solving substantially more problems, but it's also spending far more tokens attempting them. The gains in accuracy shouldn't be confused with gains in efficiency.