Grok Voice 3.0 vs Gemini 3.8 Live

Short answer: neither wins at everything.

Pick Grok Voice 3.0 if you're building a voice app and want simple pricing: $0.08 a minute, speech in and speech out.

Pick Gemini 3.8 Live if you want real-time voice from Google.

Grok Voice 3.0 vs Gemini 3.8 Live side by side

	Grok Voice 3.0	Gemini 3.8 Live
What it is	Voice model from xAI (for developers)	Real-time voice model from Google (for developers)
Made by	xAI	Google
Price	Developer price: $0.08/min speech-to-speech	Not listed in our data
Good at	Best for: voice	Best for: real-time voice
Status	Current. $0.08/min speech-to-speech	Current
Sources	docs.x.ai	ai.google.dev

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Questions people ask

Is Grok Voice 3.0 or Gemini 3.8 Live better?

It depends on what you do. Pick Grok Voice 3.0 if you're building a voice app and want simple pricing: $0.08 a minute, speech in and speech out. Pick Gemini 3.8 Live if you want real-time voice from Google.

How does WhichBot decide?

Hector uses a written rubric: everyday usefulness, cost and free plans, privacy, reliability, ease of use, availability and safety. Rankings are one input, not the answer.

Facts come from the companies' own pages, linked above, and were last checked Oct 28, 2026. Prices are US and can change. Picks are Hector's: no paid picks, sponsors always labeled, and no sponsorship from AI labs. Our policy.