diff --git a/src/thinking_parser.py b/src/thinking_parser.py
index 3891f7e5..901c6c0f 100644
--- a/src/thinking_parser.py
+++ b/src/thinking_parser.py
@@ -9,15 +9,15 @@ def parse_thinking_trace(text: str) -> Tuple[List[ThinkingSegment], str]:
  """
  Parses thinking segments from text and returns (segments, response_content).
  Support extraction of thinking traces from <thinking>...</thinking>, <thought>...</thought>,
- and blocks prefixed with Thinking:.
- [C: tests/test_thinking_trace.py:test_parse_empty_response, tests/test_thinking_trace.py:test_parse_multiple_markers, tests/test_thinking_trace.py:test_parse_no_thinking, tests/test_thinking_trace.py:test_parse_text_thinking_prefix, tests/test_thinking_trace.py:test_parse_thinking_with_empty_response, tests/test_thinking_trace.py:test_parse_xml_thinking_tag, tests/test_thinking_trace.py:test_parse_xml_thought_tag]
+ <think>...</think> (half-width form), and blocks prefixed with Thinking:.
+ [C: tests/test_thinking_trace.py:test_parse_empty_response, tests/test_thinking_trace.py:test_parse_multiple_markers, tests/test_thinking_trace.py:test_parse_no_thinking, tests/test_thinking_trace.py:test_parse_text_thinking_prefix, tests/test_thinking_trace.py:test_parse_thinking_with_empty_response, tests/test_thinking_trace.py:test_parse_xml_thinking_tag, tests/test_thinking_trace.py:test_parse_xml_thought_tag, tests/test_thinking_trace.py:test_parse_half_width_think_tag]
  """
  segments = []
  
  # 1. Extract <thinking> and <thought> tags
  current_text = text
  # Combined pattern for tags
- tag_pattern = re.compile(r'<(thinking|thought)>(.*?)</\1>', re.DOTALL | re.IGNORECASE)
+ tag_pattern = re.compile(r'<(thinking|thought|think)>(.*?)</\1>', re.DOTALL | re.IGNORECASE)
  
  def extract_tags(txt: str) -> Tuple[List[ThinkingSegment], str]:
   found_segments = []