MiniCPM5-2B tops sub-4B models on AA-Index, ships with 9-chip Day0 support

MiniCPM5-2B发布：4B以下全球性能第一，适配9款芯片

ModelBest and OpenBMB released MiniCPM5-2B, a 2B-param model that scored 17 on AA-Index—the highest among sub-4B models—with an average of 54.26, beating Qwen3.5-2B. It natively supports hybrid thinking and 512K context, and ships with Day0 adaption for 9 chips including Huawei Ascend and NVIDIA. The post doesn't disclose inference latency or memory footprint, so I'd hold off on real-world edge claims for now. It will be open-sourced soon.

Why it matters: A domestic small model hits SOTA in the sub-4B category with day-one support for 9 chips — a clear edge-deployment signal. Score stays at 78 rather than higher because the 2B scale limits audience breadth, and we only have a single WeChat source so far; will reassess when inde...