diff --git a/python/sglang/multimodal_gen/configs/models/encoders/qwen_image.py b/python/sglang/multimodal_gen/configs/models/encoders/qwen_image.py
index 02f57ca65..2a1ef261a 100644
--- a/python/sglang/multimodal_gen/configs/models/encoders/qwen_image.py
+++ b/python/sglang/multimodal_gen/configs/models/encoders/qwen_image.py
@@ -45,7 +45,7 @@ class QwenImageArchConfig(TextEncoderArchConfig):
     mlp_bias: bool = False
     head_dim: int | None = None
     hidden_state_skip_layer: int = 2
-    text_len: int = 256
+    text_len: int = 1024
 
     stacked_params_mapping: list[tuple[str, str, str]] = field(
         default_factory=lambda: [