智能助手 covers everything from voice assistants like 小爱同学 (Xiao Ai, Xiaomi), 天猫精灵 (Tmall Genie, Alibaba), and 小度 (Xiaodu, Baidu) to LLM-based chatbots like 文心一言 (Ernie Bot), 通义千问 (Qwen), and 豆包 (Doubao). After 2023 the term increasingly implies an LLM rather than a Siri-style voice helper.
usage
Compare 智能助手 (general, marketing-friendly) with 聊天机器人 (chatbot, more technical), 智能体 (AI agent, autonomous-task framing), and 大模型 (large model, the underlying LLM).