AI glossary · Chatbots and assistants
Voice assistant
A voice assistant is an AI assistant you control by speaking, such as Siri, Alexa or Google Assistant, that answers questions and controls devices.
Also called voice AI, smart assistant
In more detail
A voice assistant listens for a wake word, uses speech recognition to turn your words into text, works out what you want, and replies with text to speech.
Newer voice modes in chatbots like ChatGPT and Gemini can hold natural, interruptible conversations, a big step up from fixed commands.
Example
“Hey Siri, set a timer for ten minutes.”
Related terms
Speech recognitionSpeech recognition is AI that turns spoken words into text, so you can talk to a device or get a written transcript of audio.Text to speech (TTS)Text to speech (TTS) is technology that reads written text aloud in a natural-sounding voice. AI has made these voices far more lifelike.Conversational AIConversational AI is technology that lets computers hold natural back-and-forth conversations with people, in text or speech.AI assistantAn AI assistant is an AI tool that helps you get things done, such as answering questions, writing, planning or managing tasks, usually through chat or voice.
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