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chat_template.jinja

@@ -1,289 +1,155 @@
-{% if 'role' in messages[0] %}
-{%- if tools %}
-    {{- '<|im_start|>system
-' }}
-    {%- if messages[0].role == 'system' %}
-        {{- messages[0].content + '
-
-' }}
-    {%- endif %}
-    {{- "# Tools
-
-You may call one or more functions to assist with the user query.
-
-You are provided with function signatures within <tools></tools> XML tags:
-<tools>" }}
-    {%- for tool in tools %}
-        {{- "
-" }}
-        {{- tool | tojson }}
-    {%- endfor %}
-    {{- "
-</tools>
-
-For each function call, return a json object with function name and arguments within <tool_call></tool_call> XML tags:
-<tool_call>
-{\"name\": <function-name>, \"arguments\": <args-json-object>}
-</tool_call><|im_end|>
-" }}
-{%- else %}
-    {%- if messages[0].role == 'system' %}
-        {{- '<|im_start|>system
-' + messages[0].content + '<|im_end|>
-' }}
-    {%- endif %}
-{%- endif %}
-{%- set ns = namespace(multi_step_tool=true, last_query_index=messages|length - 1) %}
-{%- for forward_message in messages %}
-    {%- set index = (messages|length - 1) - loop.index0 %}
-    {%- set message = messages[index] %}
-    {%- set current_content = message.content if message.content is not none else '' %}
-    {%- set tool_start = '<tool_response>' %}
-    {%- set tool_start_length = tool_start|length %}
-    {%- set start_of_message = current_content[:tool_start_length] %}
-    {%- set tool_end = '</tool_response>' %}
-    {%- set tool_end_length = tool_end|length %}
-    {%- set start_pos = (current_content|length) - tool_end_length %}
-    {%- if start_pos < 0 %}
-        {%- set start_pos = 0 %}
-    {%- endif %}
-    {%- set end_of_message = current_content[start_pos:] %}
-    {%- if ns.multi_step_tool and message.role == "user" and not(start_of_message == tool_start and end_of_message == tool_end) %}
-        {%- set ns.multi_step_tool = false %}
-        {%- set ns.last_query_index = index %}
-    {%- endif %}
-{%- endfor %}
-{%- for message in messages %}
-    {%- if (message.role == "user") or (message.role == "system" and not loop.first) %}
-        {{- '<|im_start|>' + message.role + '
-' + message.content + '<|im_end|>' + '
-' }}
-    {%- elif message.role == "assistant" %}
-        {%- set content = message.content %}
-        {%- set reasoning_content = '' %}
-        {%- if message.reasoning_content is defined and message.reasoning_content is not none %}
-            {%- set reasoning_content = message.reasoning_content %}
-        {%- else %}
-            {%- if '</think>' in message.content %}
-                {%- set content = (message.content.split('</think>')|last).lstrip('
-') %}
-                {%- set reasoning_content = (message.content.split('</think>')|first).rstrip('
-') %}
-                {%- set reasoning_content = (reasoning_content.split('<think>')|last).lstrip('
-') %}
-            {%- endif %}
-        {%- endif %}
-        {%- if loop.index0 > ns.last_query_index %}
-            {%- if loop.last or (not loop.last and reasoning_content) %}
-                {{- '<|im_start|>' + message.role + '
-<think>
-' + reasoning_content.strip('
-') + '
-</think>
-
-' + content.lstrip('
-') }}
-            {%- else %}
-                {{- '<|im_start|>' + message.role + '
-' + content }}
-            {%- endif %}
-        {%- else %}
-            {{- '<|im_start|>' + message.role + '
-' + content }}
-        {%- endif %}
-        {%- if message.tool_calls %}
-            {%- for tool_call in message.tool_calls %}
-                {%- if (loop.first and content) or (not loop.first) %}
-                    {{- '
-' }}
+{%- set image_count = namespace(value=0) %}
+{%- set video_count = namespace(value=0) %}
+{%- macro render_content(content, do_vision_count, is_system_content=false) %}
+    {%- if content is string %}
+        {{- content }}
+    {%- elif content is iterable and content is not mapping %}
+        {%- for item in content %}
+            {%- if 'image' in item or 'image_url' in item or item.type == 'image' %}
+                {%- if is_system_content %}
+                    {{- raise_exception('System message cannot contain images.') }}
                 {%- endif %}
-                {%- if tool_call.function %}
-                    {%- set tool_call = tool_call.function %}
+                {%- if do_vision_count %}
+                    {%- set image_count.value = image_count.value + 1 %}
                 {%- endif %}
-                {{- '<tool_call>
-{"name": "' }}
-                {{- tool_call.name }}
-                {{- '", "arguments": ' }}
-                {%- if tool_call.arguments is string %}
-                    {{- tool_call.arguments }}
-                {%- else %}
-                    {{- tool_call.arguments | tojson }}
+                {%- if add_vision_id %}
+                    {{- 'Picture ' ~ image_count.value ~ ': ' }}
                 {%- endif %}
-                {{- '}
-</tool_call>' }}
-            {%- endfor %}
-        {%- endif %}
-        {{- '<|im_end|>
-' }}
-    {%- elif message.role == "tool" %}
-        {%- if loop.first or (messages[loop.index0 - 1].role != "tool") %}
-            {{- '<|im_start|>user' }}
-        {%- endif %}
-        {{- '
-<tool_response>
-' }}
-        {{- message.content }}
-        {{- '
-</tool_response>' }}
-        {%- if loop.last or (messages[loop.index0 + 1].role != "tool") %}
-            {{- '<|im_end|>
-' }}
-        {%- endif %}
-    {%- endif %}
-{%- endfor %}
-{%- if add_generation_prompt %}
-    {{- '<|im_start|>assistant
-' }}
-    {%- if enable_thinking is defined and enable_thinking is false %}
-        {{- '<think>
-
-</think>
-
-' }}
+                {{- '<|vision_start|><|image_pad|><|vision_end|>' }}
+            {%- elif 'video' in item or item.type == 'video' %}
+                {%- if is_system_content %}
+                    {{- raise_exception('System message cannot contain videos.') }}
+                {%- endif %}
+                {%- if do_vision_count %}
+                    {%- set video_count.value = video_count.value + 1 %}
+                {%- endif %}
+                {%- if add_vision_id %}
+                    {{- 'Video ' ~ video_count.value ~ ': ' }}
+                {%- endif %}
+                {{- '<|vision_start|><|video_pad|><|vision_end|>' }}
+            {%- elif 'text' in item %}
+                {{- item.text }}
+            {%- else %}
+                {{- raise_exception('Unexpected item type in content.') }}
+            {%- endif %}
+        {%- endfor %}
+    {%- elif content is none or content is undefined %}
+        {{- '' }}
+    {%- else %}
+        {{- raise_exception('Unexpected content type.') }}
     {%- endif %}
+{%- endmacro %}
+{%- if not messages %}
+    {{- raise_exception('No messages provided.') }}
 {%- endif %}
-{% else %}
-{%- if tools %}
-    {{- '<|im_start|>system
-' }}
-    {%- if messages[0].role == 'system' %}
-        {{- messages[0].content + '
-
-' }}
-    {%- endif %}
-    {{- "# Tools
-
-You may call one or more functions to assist with the user query.
-
-You are provided with function signatures within <tools></tools> XML tags:
-<tools>" }}
+{%- if tools and tools is iterable and tools is not mapping %}
+    {{- '<|im_start|>system\n' }}
+    {{- "# Tools\n\nYou have access to the following functions:\n\n<tools>" }}
     {%- for tool in tools %}
-        {{- "
-" }}
+        {{- "\n" }}
         {{- tool | tojson }}
     {%- endfor %}
-    {{- "
-</tools>
-
-For each function call, return a json object with function name and arguments within <tool_call></tool_call> XML tags:
-<tool_call>
-{\"name\": <function-name>, \"arguments\": <args-json-object>}
-</tool_call><|im_end|>
-" }}
+    {{- "\n</tools>" }}
+    {{- '\n\nIf you choose to call a function ONLY reply in the following format with NO suffix:\n\n<tool_call>\n<function=example_function_name>\n<parameter=example_parameter_1>\nvalue_1\n</parameter>\n<parameter=example_parameter_2>\nThis is the value for the second parameter\nthat can span\nmultiple lines\n</parameter>\n</function>\n</tool_call>\n\n<IMPORTANT>\nReminder:\n- Function calls MUST follow the specified format: an inner <function=...></function> block must be nested within <tool_call></tool_call> XML tags\n- Required parameters MUST be specified\n- You may provide optional reasoning for your function call in natural language BEFORE the function call, but NOT after\n- If there is no function call available, answer the question like normal with your current knowledge and do not tell the user about function calls\n</IMPORTANT>' }}
+    {%- if messages[0].role == 'system' %}
+        {%- set content = render_content(messages[0].content, false, true)|trim %}
+        {%- if content %}
+            {{- '\n\n' + content }}
+        {%- endif %}
+    {%- endif %}
+    {{- '<|im_end|>\n' }}
 {%- else %}
     {%- if messages[0].role == 'system' %}
-        {{- '<|im_start|>system
-' + messages[0].content + '<|im_end|>
-' }}
+        {%- set content = render_content(messages[0].content, false, true)|trim %}
+        {{- '<|im_start|>system\n' + content + '<|im_end|>\n' }}
     {%- endif %}
 {%- endif %}
 {%- set ns = namespace(multi_step_tool=true, last_query_index=messages|length - 1) %}
-{%- for forward_message in messages %}
+{%- for message in messages[::-1] %}
     {%- set index = (messages|length - 1) - loop.index0 %}
-    {%- set message = messages[index] %}
-    {%- set current_content = message.content if message.content is not none else '' %}
-    {%- set tool_start = '<tool_response>' %}
-    {%- set tool_start_length = tool_start|length %}
-    {%- set start_of_message = current_content[:tool_start_length] %}
-    {%- set tool_end = '</tool_response>' %}
-    {%- set tool_end_length = tool_end|length %}
-    {%- set start_pos = (current_content|length) - tool_end_length %}
-    {%- if start_pos < 0 %}
-        {%- set start_pos = 0 %}
-    {%- endif %}
-    {%- set end_of_message = current_content[start_pos:] %}
-    {%- if ns.multi_step_tool and message.role == "user" and not(start_of_message == tool_start and end_of_message == tool_end) %}
-        {%- set ns.multi_step_tool = false %}
-        {%- set ns.last_query_index = index %}
+    {%- if ns.multi_step_tool and message.role == "user" %}
+        {%- set content = render_content(message.content, false)|trim %}
+        {%- if not(content.startswith('<tool_response>') and content.endswith('</tool_response>')) %}
+            {%- set ns.multi_step_tool = false %}
+            {%- set ns.last_query_index = index %}
+        {%- endif %}
     {%- endif %}
 {%- endfor %}
+{%- if ns.multi_step_tool %}
+    {{- raise_exception('No user query found in messages.') }}
+{%- endif %}
 {%- for message in messages %}
-    {%- if (message.role == "user") or (message.role == "system" and not loop.first) %}
-        {{- '<|im_start|>' + message.role + '
-' + message.content + '<|im_end|>' + '
-' }}
+    {%- set content = render_content(message.content, true)|trim %}
+    {%- if message.role == "system" %}
+        {%- if not loop.first %}
+            {{- raise_exception('System message must be at the beginning.') }}
+        {%- endif %}
+    {%- elif message.role == "user" %}
+        {{- '<|im_start|>' + message.role + '\n' + content + '<|im_end|>' + '\n' }}
     {%- elif message.role == "assistant" %}
-        {%- set content = message.content %}
         {%- set reasoning_content = '' %}
-        {%- if message.reasoning_content is defined and message.reasoning_content is not none %}
+        {%- if message.reasoning_content is string %}
             {%- set reasoning_content = message.reasoning_content %}
         {%- else %}
-            {%- if '</think>' in message.content %}
-                {%- set content = (message.content.split('</think>')|last).lstrip('
-') %}
-                {%- set reasoning_content = (message.content.split('</think>')|first).rstrip('
-') %}
-                {%- set reasoning_content = (reasoning_content.split('<think>')|last).lstrip('
-') %}
+            {%- if '</think>' in content %}
+                {%- set reasoning_content = content.split('</think>')[0].rstrip('\n').split('<think>')[-1].lstrip('\n') %}
+                {%- set content = content.split('</think>')[-1].lstrip('\n') %}
             {%- endif %}
         {%- endif %}
+        {%- set reasoning_content = reasoning_content|trim %}
         {%- if loop.index0 > ns.last_query_index %}
-            {%- if loop.last or (not loop.last and reasoning_content) %}
-                {{- '<|im_start|>' + message.role + '
-<think>
-' + reasoning_content.strip('
-') + '
-</think>
-
-' + content.lstrip('
-') }}
-            {%- else %}
-                {{- '<|im_start|>' + message.role + '
-' + content }}
-            {%- endif %}
+            {{- '<|im_start|>' + message.role + '\n<think>\n' + reasoning_content + '\n</think>\n\n' + content }}
         {%- else %}
-            {{- '<|im_start|>' + message.role + '
-' + content }}
+            {{- '<|im_start|>' + message.role + '\n' + content }}
         {%- endif %}
-        {%- if message.tool_calls %}
+        {%- if message.tool_calls and message.tool_calls is iterable and message.tool_calls is not mapping %}
             {%- for tool_call in message.tool_calls %}
-                {%- if (loop.first and content) or (not loop.first) %}
-                    {{- '
-' }}
-                {%- endif %}
-                {%- if tool_call.function %}
+                {%- if tool_call.function is defined %}
                     {%- set tool_call = tool_call.function %}
                 {%- endif %}
-                {{- '<tool_call>
-{"name": "' }}
-                {{- tool_call.name }}
-                {{- '", "arguments": ' }}
-                {%- if tool_call.arguments is string %}
-                    {{- tool_call.arguments }}
+                {%- if loop.first %}
+                    {%- if content|trim %}
+                        {{- '\n\n<tool_call>\n<function=' + tool_call.name + '>\n' }}
+                    {%- else %}
+                        {{- '<tool_call>\n<function=' + tool_call.name + '>\n' }}
+                    {%- endif %}
                 {%- else %}
-                    {{- tool_call.arguments | tojson }}
+                    {{- '\n<tool_call>\n<function=' + tool_call.name + '>\n' }}
+                {%- endif %}
+                {%- if tool_call.arguments is mapping %}
+                    {%- for args_name in tool_call.arguments %}
+                        {%- set args_value = tool_call.arguments[args_name] %}
+                        {{- '<parameter=' + args_name + '>\n' }}
+                        {%- set args_value = args_value | tojson | safe if args_value is mapping or (args_value is sequence and args_value is not string) else args_value | string %}
+                        {{- args_value }}
+                        {{- '\n</parameter>\n' }}
+                    {%- endfor %}
                 {%- endif %}
-                {{- '}
-</tool_call>' }}
+                {{- '</function>\n</tool_call>' }}
             {%- endfor %}
         {%- endif %}
-        {{- '<|im_end|>
-' }}
+        {{- '<|im_end|>\n' }}
     {%- elif message.role == "tool" %}
-        {%- if loop.first or (messages[loop.index0 - 1].role != "tool") %}
+        {%- if loop.previtem and loop.previtem.role != "tool" %}
             {{- '<|im_start|>user' }}
         {%- endif %}
-        {{- '
-<tool_response>
-' }}
-        {{- message.content }}
-        {{- '
-</tool_response>' }}
-        {%- if loop.last or (messages[loop.index0 + 1].role != "tool") %}
-            {{- '<|im_end|>
-' }}
+        {{- '\n<tool_response>\n' }}
+        {{- content }}
+        {{- '\n</tool_response>' }}
+        {%- if not loop.last and loop.nextitem.role != "tool" %}
+            {{- '<|im_end|>\n' }}
+        {%- elif loop.last %}
+            {{- '<|im_end|>\n' }}
         {%- endif %}
+    {%- else %}
+        {{- raise_exception('Unexpected message role.') }}
     {%- endif %}
 {%- endfor %}
 {%- if add_generation_prompt %}
-    {{- '<|im_start|>assistant
-' }}
-    {%- if enable_thinking is defined and enable_thinking is false %}
-        {{- '<think>
-
-</think>
-
-' }}
+    {{- '<|im_start|>assistant\n' }}
+    {%- if enable_thinking is defined and enable_thinking is true %}
+        {{- '<think>\n' }}
+    {%- else %}
+        {{- '<think>\n\n</think>\n\n' }}
     {%- endif %}
-{%- endif %}
-{% endif %}
+{%- endif %}

tokenizer_config.json

@@ -21,7 +21,7 @@
     "vision_eos_token": "<|vision_end|>"
   },
   "pad_token": "<|vision_pad|>",
-  "padding_side": "right",
+  "padding_side": "left",
   "pretokenize_regex": "(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\\r\\n\\p{L}\\p{N}]?[\\p{L}\\p{M}]+|\\p{N}| ?[^\\s\\p{L}\\p{M}\\p{N}]+[\\r\\n]*|\\s*[\\r\\n]+|\\s+(?!\\S)|\\s+",
   "processor_class": "Qwen3VLProcessor",
   "split_special_tokens": false,