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Siri is Apple's voice-enabled virtual assistant powered by artificial intelligence, machine learning, and voice recognition.
Using the commands "Siri" or "Hey Siri," you can activate Siri and ask it to perform various tasks, such as texting a friend, opening an app, pulling up a photo, or playing your favorite song.
Apple introduced the voice assistant in 2011, and it was called a "breakthrough in AI technology" at the time. The technology has improved since then, but many say the AI efforts of Google and OpenAI have surpassed Siri.