Xiaomi MiMo V2 Flash Confirmed as OpenRouter Stealth Model 'Hunter/Healer Alpha' — #1 Open-Source SWE-Bench at 73.4%

r/LocalLLaMA / Xiaomi·high signal

The OpenRouter stealth model running under the codename Hunter/Healer Alpha has been confirmed as Xiaomi's MiMo V2 Flash: a 309B MoE model with 15B active parameters, 256K context, and hybrid-thinking toggle. It scores 73.4% on SWE-Bench Verified — top open-source globally — and 71.7% on SWE-Bench Multilingual, approaching GPT-5-High performance at roughly 3.5% of the cost. A successor model was also teased in the same OpenClaw PR confirming the identity.