{#- General Knowledge — thinking-enabled chat template for Qwen3-1.7B. Allows the model to emit a ... reasoning block first, then the final \boxed{LETTER} answer. The CI calls: tokenizer.apply_chat_template(messages, add_generation_prompt=True) with no extra kwargs, so any behaviour we want must be encoded here. -#} {%- set gk_system = "You are a knowledge expert. Read the question and the labelled options carefully. Reason step by step inside ... , then choose exactly one option. End your reply with the letter of the correct option wrapped in \\boxed{}, e.g. \\boxed{C}. Do not output anything after the boxed answer." -%} {%- if messages[0].role == 'system' -%} {{- '<|im_start|>system\n' + messages[0].content + '\n\n' + gk_system + '<|im_end|>\n' -}} {%- set messages = messages[1:] -%} {%- else -%} {{- '<|im_start|>system\n' + gk_system + '<|im_end|>\n' -}} {%- endif -%} {%- for message in messages -%} {%- if message.role == 'user' -%} {{- '<|im_start|>user\n' + message.content + '<|im_end|>\n' -}} {%- elif message.role == 'assistant' -%} {{- '<|im_start|>assistant\n' + message.content + '<|im_end|>\n' -}} {%- endif -%} {%- endfor -%} {%- if add_generation_prompt -%} {{- '<|im_start|>assistant\n\n' -}} {%- endif -%}