Respect enable_thinking in MiniCPM5 chat template

README.md

@@ -36,7 +36,8 @@ xnnpack/minicpm_5_2b_xnnpack_8da4w.pte    1.3 GiB
 
 ## Export notes
 
-128-token prefill and float32 logits. Thinking is enabled; history omits reasoning.
+128-token prefill and float32 logits. The chat template supports `enable_thinking`: `true` opens reasoning and `false`
+prefills an empty reasoning block. History omits reasoning.
 MLX requires Apple silicon.
 
 ## Compatibility

tokenizer_config.json

@@ -4096,5 +4096,5 @@
   "tokenizer_class": "PreTrainedTokenizerFast",
   "unk_token": "<unk>",
   "use_default_system_prompt": false,
-  "chat_template": "{{- bos_token }}{%- if tools %}\n    {%- set tool_definitions %}\n        {{- \"# Tools\\n\\nYou are provided with function signatures within <tools></tools> XML tags:\\n<tools>\" }}\n        {%- for tool in tools %}\n            {{- \"\\n\" }}\n            {{- tool | tojson(ensure_ascii=False) }}\n        {%- endfor %}\n        {{- '\\n</tools>\\n\\nTool usage guidelines:\\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\\n- When calling a function, return an XML object within <function ... </function> using:\\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param>' }}\n    {%- endset %}\n    \n    {{- '<|im_start|>system\\n' }}\n    {%- if messages[0].role == 'system' %}\n        {%- if '<tool_def_sep>' in messages[0].content %}\n            {{- messages[0].content.replace('<tool_def_sep>', tool_definitions) }}\n        {%- else %}\n            {{- messages[0].content + '\\n\\n' + tool_definitions }}\n        {%- endif %}\n    {%- else %}\n        {{- tool_definitions.lstrip() }}\n    {%- endif %}\n    {{- '<|im_end|>\\n' }}\n{%- else %}\n    {%- if messages[0].role == 'system' %}\n        {{- '<|im_start|>system\\n' + messages[0].content + '<|im_end|>\\n' }}\n    {%- endif %}\n{%- endif %}\n{%- set ns = namespace(multi_step_tool=true, last_query_index=messages|length - 1) %}\n{%- for message in messages[::-1] %}\n    {%- set index = (messages|length - 1) - loop.index0 %}\n    {%- if ns.multi_step_tool and message.role == \"user\" and message.content is string and not(message.content.startswith('<tool_response>') and message.content.endswith('</tool_response>')) %}\n        {%- set ns.multi_step_tool = false %}\n        {%- set ns.last_query_index = index %}\n    {%- endif %}\n{%- endfor %}\n{%- for message in messages %}\n    {%- if message.content is string %}\n        {%- set content = message.content %}\n    {%- else %}\n        {%- set content = '' %}\n    {%- endif %}\n    {%- if (message.role == \"user\") or (message.role == \"system\" and not loop.first) %}\n        {{- '<|im_start|>' + message.role + '\\n' + content + '<|im_end|>' + '\\n' }}\n    {%- elif message.role == \"assistant\" %}\n        {%- if '</think>' in content %}\n            {%- set content = content.split('</think>')[-1].lstrip('\\n') %}\n        {%- endif %}\n        {{- '<|im_start|>' + message.role + '\\n' + content }}\n        {%- if message.tool_calls %}\n            {%- for tool_call in message.tool_calls %}\n                {%- if (loop.first and content) or (not loop.first) %}\n                    {{- '\\n' }}\n                {%- endif %}\n                {%- if tool_call.function %}\n                    {%- set tool_call = tool_call.function %}\n                {%- endif %}\n                {{- '<function name=\"' ~ tool_call.name ~ '\">' }}\n                {%- if tool_call.arguments %}\n                    {%- set args_dict = tool_call.arguments %}\n                    {%- for param_name, param_value in args_dict.items() %}\n                        {{- '<param name=\"' ~ param_name ~ '\">' }}\n                        {%- if param_value is string and ('<' in param_value or '&' in param_value or '\\n' in param_value) %}\n                            {{- '<![CDATA[' + param_value + ']]>' }}\n                        {%- else %}\n                            {{- param_value }}\n                        {%- endif %}\n                        {{- '</param>' }}\n                    {%- endfor %}\n                {%- endif %}\n                {{- '</function>' }}\n            {%- endfor %}\n        {%- endif %}\n        {{- '<|im_end|>\\n' }}\n    {%- elif message.role == \"tool\" %}\n        {%- if loop.first or (messages[loop.index0 - 1].role != \"tool\") %}\n            {{- '<|im_start|>user' }}\n        {%- endif %}\n        {{- '\\n<tool_response>\\n' }}\n        {%- if message.content is string %}\n            {{- content }}\n        {%- else %}\n            {{- message.content | tojson(ensure_ascii=False) }}\n        {%- endif %}\n        {{- '\\n</tool_response>' }}\n        {%- if loop.last or (messages[loop.index0 + 1].role != \"tool\") %}\n            {{- '<|im_end|>\\n' }}\n        {%- endif %}\n    {%- endif %}\n{%- endfor %}\n{%- if add_generation_prompt %}{{- '<|im_start|>assistant\\n<think>\\n' }}{%- endif %}"
+  "chat_template": "{{- bos_token }}{%- if tools %}\n    {%- set tool_definitions %}\n        {{- \"# Tools\\n\\nYou are provided with function signatures within <tools></tools> XML tags:\\n<tools>\" }}\n        {%- for tool in tools %}\n            {{- \"\\n\" }}\n            {{- tool | tojson(ensure_ascii=False) }}\n        {%- endfor %}\n        {{- '\\n</tools>\\n\\nTool usage guidelines:\\n- You may call zero or more functions. If no function calls are needed, just answer normally and do not include any <function ... </function>.\\n- When calling a function, return an XML object within <function ... </function> using:\\n<function name=\"function-name\"><param name=\"param-name\">param-value</param></function>\\n- param-value may be multi-line. If it contains <, & or newline characters, wrap it in a CDATA block: <param name=\"param-name\"><![CDATA[...multi-line value...]]></param>' }}\n    {%- endset %}\n    \n    {{- '<|im_start|>system\\n' }}\n    {%- if messages[0].role == 'system' %}\n        {%- if '<tool_def_sep>' in messages[0].content %}\n            {{- messages[0].content.replace('<tool_def_sep>', tool_definitions) }}\n        {%- else %}\n            {{- messages[0].content + '\\n\\n' + tool_definitions }}\n        {%- endif %}\n    {%- else %}\n        {{- tool_definitions.lstrip() }}\n    {%- endif %}\n    {{- '<|im_end|>\\n' }}\n{%- else %}\n    {%- if messages[0].role == 'system' %}\n        {{- '<|im_start|>system\\n' + messages[0].content + '<|im_end|>\\n' }}\n    {%- endif %}\n{%- endif %}\n{%- set ns = namespace(multi_step_tool=true, last_query_index=messages|length - 1) %}\n{%- for message in messages[::-1] %}\n    {%- set index = (messages|length - 1) - loop.index0 %}\n    {%- if ns.multi_step_tool and message.role == \"user\" and message.content is string and not(message.content.startswith('<tool_response>') and message.content.endswith('</tool_response>')) %}\n        {%- set ns.multi_step_tool = false %}\n        {%- set ns.last_query_index = index %}\n    {%- endif %}\n{%- endfor %}\n{%- for message in messages %}\n    {%- if message.content is string %}\n        {%- set content = message.content %}\n    {%- else %}\n        {%- set content = '' %}\n    {%- endif %}\n    {%- if (message.role == \"user\") or (message.role == \"system\" and not loop.first) %}\n        {{- '<|im_start|>' + message.role + '\\n' + content + '<|im_end|>' + '\\n' }}\n    {%- elif message.role == \"assistant\" %}\n        {%- if '</think>' in content %}\n            {%- set content = content.split('</think>')[-1].lstrip('\\n') %}\n        {%- endif %}\n        {{- '<|im_start|>' + message.role + '\\n' + content }}\n        {%- if message.tool_calls %}\n            {%- for tool_call in message.tool_calls %}\n                {%- if (loop.first and content) or (not loop.first) %}\n                    {{- '\\n' }}\n                {%- endif %}\n                {%- if tool_call.function %}\n                    {%- set tool_call = tool_call.function %}\n                {%- endif %}\n                {{- '<function name=\"' ~ tool_call.name ~ '\">' }}\n                {%- if tool_call.arguments %}\n                    {%- set args_dict = tool_call.arguments %}\n                    {%- for param_name, param_value in args_dict.items() %}\n                        {{- '<param name=\"' ~ param_name ~ '\">' }}\n                        {%- if param_value is string and ('<' in param_value or '&' in param_value or '\\n' in param_value) %}\n                            {{- '<![CDATA[' + param_value + ']]>' }}\n                        {%- else %}\n                            {{- param_value }}\n                        {%- endif %}\n                        {{- '</param>' }}\n                    {%- endfor %}\n                {%- endif %}\n                {{- '</function>' }}\n            {%- endfor %}\n        {%- endif %}\n        {{- '<|im_end|>\\n' }}\n    {%- elif message.role == \"tool\" %}\n        {%- if loop.first or (messages[loop.index0 - 1].role != \"tool\") %}\n            {{- '<|im_start|>user' }}\n        {%- endif %}\n        {{- '\\n<tool_response>\\n' }}\n        {%- if message.content is string %}\n            {{- content }}\n        {%- else %}\n            {{- message.content | tojson(ensure_ascii=False) }}\n        {%- endif %}\n        {{- '\\n</tool_response>' }}\n        {%- if loop.last or (messages[loop.index0 + 1].role != \"tool\") %}\n            {{- '<|im_end|>\\n' }}\n        {%- endif %}\n    {%- endif %}\n{%- endfor %}\n{%- if add_generation_prompt %}\n    {{- '<|im_start|>assistant\\n' }}\n    {%- if enable_thinking is defined %}\n        {%- if enable_thinking is false %}\n            {{- '<think>\\n\\n</think>\\n\\n' }}\n        {%- elif enable_thinking is true %}\n            {{- '<think>\\n' }}\n        {%- endif %}\n    {%- endif %}\n{%- endif %}\n"
 }