From 365b7dab9a1759a3acac524d55931bc4dde5d4f7 Mon Sep 17 00:00:00 2001
From: Muqi Li <muqi1029@gmail.com>
Date: Wed, 10 Jun 2026 07:52:35 +0800
Subject: [PATCH] fix(schema): update tokens_after_end (#27017)

Co-authored-by: zqlcode <1309223143@qq.com>
---
 python/sglang/srt/constrained/reasoner_grammar_backend.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/python/sglang/srt/constrained/reasoner_grammar_backend.py b/python/sglang/srt/constrained/reasoner_grammar_backend.py
index 57d0f65d5..6ffb157fe 100644
--- a/python/sglang/srt/constrained/reasoner_grammar_backend.py
+++ b/python/sglang/srt/constrained/reasoner_grammar_backend.py
@@ -78,6 +78,7 @@ class ReasonerGrammarObject(BaseGrammarObject):
     def maybe_init_reasoning(self, reasoning: bool):
         if reasoning:
             self.tokens_in_think = 0
+            self.tokens_after_end = -1
         else:
             self.tokens_in_think = -1
             self.tokens_after_end = 0