ChatGPT's camera input during voice chat requires its $20-per-month subscription, while Gemini Live offers the feature free up to a limit, according to a hands-on comparison of the two voice assistants. The reviewer found ChatGPT Voice more expressive and likelier to search the internet before answering, while Gemini Live sounded flatter but integrates with Google Home speakers and personal Google account data. Both services limit free voice conversations to a few minutes.
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