diff --git a/gliner_inference_server/models.py b/gliner_inference_server/models.py
index 9958933..afbd03b 100644
--- a/gliner_inference_server/models.py
+++ b/gliner_inference_server/models.py
@@ -3,6 +3,9 @@ from typing import List, Optional, Union, Dict, Any, Tuple
 import os
 
 
+MAX_TEXT_LENGTH = int(os.getenv("MAX_TEXT_LENGTH", "1000"))
+
+
 # ==================== Request Models ====================
 class GeneralRequest(BaseModel):
     text: Optional[str] = None
@@ -21,13 +24,12 @@ class GeneralRequest(BaseModel):
     @field_validator('text', 'texts')
     @classmethod
     def validate_text_length(cls, v):
-        max_length = int(os.getenv("MAX_TEXT_LENGTH", "10000"))
-        if isinstance(v, str) and len(v) > max_length:
-            raise ValueError(f"text exceeds maximum length of {max_length}")
+        if isinstance(v, str) and len(v) > MAX_TEXT_LENGTH:
+            raise ValueError(f"text exceeds maximum length of {MAX_TEXT_LENGTH}")
         if isinstance(v, list):
             for text in v:
-                if len(text) > max_length:
-                    raise ValueError(f"text exceeds maximum length of {max_length}")
+                if len(text) > MAX_TEXT_LENGTH:
+                    raise ValueError(f"text exceeds maximum length of {MAX_TEXT_LENGTH}")
         return v
 
 
@@ -56,13 +58,12 @@ class RelationExtractionRequest(BaseModel):
     @field_validator('text', 'texts')
     @classmethod
     def validate_text_length(cls, v):
-        max_length = int(os.getenv("MAX_TEXT_LENGTH", "10000"))
-        if isinstance(v, str) and len(v) > max_length:
-            raise ValueError(f"text exceeds maximum length of {max_length}")
+        if isinstance(v, str) and len(v) > MAX_TEXT_LENGTH:
+            raise ValueError(f"text exceeds maximum length of {MAX_TEXT_LENGTH}")
         if isinstance(v, list):
             for text in v:
-                if len(text) > max_length:
-                    raise ValueError(f"text exceeds maximum length of {max_length}")
+                if len(text) > MAX_TEXT_LENGTH:
+                    raise ValueError(f"text exceeds maximum length of {MAX_TEXT_LENGTH}")
         return v
 
 
@@ -75,12 +76,11 @@ class SummarizationRequest(BaseModel):
     @field_validator('text', 'texts')
     @classmethod
     def validate_text_length(cls, v):
-        max_length = int(os.getenv("MAX_TEXT_LENGTH", "10000"))
-        if isinstance(v, str) and len(v) > max_length:
-            raise ValueError(f"text exceeds maximum length of {max_length}")
+        if isinstance(v, str) and len(v) > MAX_TEXT_LENGTH:
+            raise ValueError(f"text exceeds maximum length of {MAX_TEXT_LENGTH}")
         if isinstance(v, list):
             for text in v:
-                if len(text) > max_length:
-                    raise ValueError(f"text exceeds maximum length of {max_length}")
+                if len(text) > MAX_TEXT_LENGTH:
+                    raise ValueError(f"text exceeds maximum length of {MAX_TEXT_LENGTH}")
         return v