diff --git a/modules/chat.py b/modules/chat.py
index 5eb9f301..818d1014 100644
--- a/modules/chat.py
+++ b/modules/chat.py
@@ -109,7 +109,8 @@ def generate_chat_prompt(user_input, state, **kwargs):
         tools_in_user_message=False,
         add_generation_prompt=False,
         enable_thinking=state['enable_thinking'],
-        reasoning_effort=state['reasoning_effort']
+        reasoning_effort=state['reasoning_effort'],
+        thinking_budget=-1 if state.get('enable_thinking', True) else 0
     )
 
     chat_renderer = partial(
@@ -190,6 +191,30 @@ def generate_chat_prompt(user_input, state, **kwargs):
 
                 messages.insert(insert_pos, msg_dict)
 
+            # Handle Seed-OSS
+            elif '<seed:think>' in assistant_msg:
+                thinking_content = ""
+                final_content = assistant_msg
+
+                # Extract thinking content if present
+                if '<seed:think>' in assistant_msg:
+                    parts = assistant_msg.split('<seed:think>', 1)
+                    if len(parts) > 1:
+                        potential_content = parts[1]
+                        if '</seed:think>' in potential_content:
+                            thinking_content = potential_content.split('</seed:think>', 1)[0].strip()
+                            final_content = parts[0] + potential_content.split('</seed:think>', 1)[1]
+                        else:
+                            thinking_content = potential_content.strip()
+                            final_content = parts[0]
+
+                # Insert as structured message
+                msg_dict = {"role": "assistant", "content": final_content.strip()}
+                if thinking_content:
+                    msg_dict["reasoning_content"] = thinking_content
+
+                messages.insert(insert_pos, msg_dict)
+
             else:
                 # Default case (used by all other models)
                 messages.insert(insert_pos, {"role": "assistant", "content": assistant_msg})
@@ -687,6 +712,8 @@ def generate_search_query(user_message, state):
         query = query.rsplit("</think>", 1)[1]
     elif "<|start|>assistant<|channel|>final<|message|>" in query:
         query = query.rsplit("<|start|>assistant<|channel|>final<|message|>", 1)[1]
+    elif "</seed:think>" in query:
+        query = query.rsplit("</seed:think>", 1)[1]
 
     # Strip and remove surrounding quotes if present
     query = query.strip()
diff --git a/modules/html_generator.py b/modules/html_generator.py
index 279f9ba6..63844f35 100644
--- a/modules/html_generator.py
+++ b/modules/html_generator.py
@@ -137,7 +137,7 @@ def extract_thinking_block(string):
         remaining_content = string[content_start:]
         return thinking_content, remaining_content
 
-    # If think tags not found, try alternative format
+    # If think tags not found, try GPT-OSS alternative format
     ALT_START = "&lt;|channel|&gt;analysis&lt;|message|&gt;"
     ALT_END = "&lt;|end|&gt;"
     ALT_CONTENT_START = "&lt;|start|&gt;assistant&lt;|channel|&gt;final&lt;|message|&gt;"
@@ -168,7 +168,31 @@ def extract_thinking_block(string):
         remaining_content = string[content_start:]
         return thinking_content, remaining_content
 
-    # Return if neither format is found
+    # Try seed:think format
+    SEED_START = "&lt;seed:think&gt;"
+    SEED_END = "&lt;/seed:think&gt;"
+
+    seed_start_pos = string.find(SEED_START)
+    seed_end_pos = string.find(SEED_END)
+
+    if seed_start_pos != -1 or seed_end_pos != -1:
+        if seed_start_pos == -1:
+            thought_start = 0
+        else:
+            thought_start = seed_start_pos + len(SEED_START)
+
+        if seed_end_pos == -1:
+            thought_end = len(string)
+            content_start = len(string)
+        else:
+            thought_end = seed_end_pos
+            content_start = seed_end_pos + len(SEED_END)
+
+        thinking_content = string[thought_start:thought_end]
+        remaining_content = string[content_start:]
+        return thinking_content, remaining_content
+
+    # Return if no format is found
     return None, string