From 91a4cd86487b4cfc9718e5dcb1654b5bf3859a74 Mon Sep 17 00:00:00 2001
From: Ke Bao <ispobaoke@gmail.com>
Date: Tue, 20 Jan 2026 21:22:27 +0800
Subject: [PATCH] Update default attn backend to fa3 for mimo model (#17419)

---
 python/sglang/srt/utils/common.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/python/sglang/srt/utils/common.py b/python/sglang/srt/utils/common.py
index 63e429bca..fed2a3395 100644
--- a/python/sglang/srt/utils/common.py
+++ b/python/sglang/srt/utils/common.py
@@ -2880,6 +2880,7 @@ def is_fa3_default_architecture(hf_config):
         "Glm4vForConditionalGeneration",
         "Glm4vMoeForConditionalGeneration",
         "Step3VLForConditionalGeneration",
+        "MiMoV2FlashForCausalLM",
     }
     return architectures[0] in default_archs