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Grok Voice 3.0
xAI’s speech-to-speech voice model, under 1s latency
Grok Voice 3.0 is xAI’s speech-to-speech model for voice agents, which xAI calls the world’s most intelligent. It ranks #1 on the Artificial Analysis Speech-to-Speech Index at 86.9, with latency under one second per xAI. It powers voice in Tesla vehicles and Starlink support calls. Available through the Voice Agent API at $0.08 per minute, same as Grok Voice 2.0. Agents on grok-voice-latest switched to 3.0 automatically.
Grok Voice 3.0 is xAI’s new speech-to-speech model for voice agents. xAI announced it October 14, 2026, and calls it “the world’s most intelligent speech-to-speech model.”
Problem: Voice agents for support calls or in-car assistants have to feel natural. They need to answer fast, handle interruptions and pauses, and still get the task done. A slow or error-prone voice agent loses the caller.
Solution: Grok Voice 3.0 takes speech in and gives speech back directly, without a separate text step. Per xAI, latency is under one second. It handles agentic tasks like verifying customers, troubleshooting hardware, issuing credits and shipping equipment.
How it performs:
Speech-to-Speech Index: 86.9, ranked #1, against 83.2 for GPT-Live-1 and 82.6 for Gemini 3.8 Live
Big Bench Audio (speech reasoning): 98.5%
Task success rate: 94.8%
Full Duplex Bench (turn-taking and interruptions): 97.0%
Cost per task on Big Bench Audio: $0.025, against $0.030 for GPT-Live-1 and $0.055 for GPT-Realtime-2.1
In use:
Tesla vehicles: millions of conversations a day, from checking calendars to ordering coffee, hands-free. It also powers Grok Bot’s voice mode.
Starlink call centers: 20,000 customer calls a day in multiple languages, with about 70% resolved without a human
Pricing and access:
Voice Agent API: $0.08 per minute ($4.80 per hour), the same price as Grok Voice 2.0
Agents using grok-voice-latest switched to 3.0 automatically, with no changes needed
Who it’s for: developers building voice agents, such as support lines and in-car or device assistants, who want a single speech-to-speech model through an API.
“xAI’s speech-to-speech voice model, under 1s latency”
Grok Voice 3.0 was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #137 on the daily leaderboard. Grok Voice 3.0 is xAI’s speech-to-speech model for voice agents, which xAI calls the world’s most intelligent. It ranks #1 on the Artificial Analysis Speech-to-Speech Index at 86.9, with latency under one second per xAI. It powers voice in Tesla vehicles and Starlink support calls. Available through the Voice Agent API at $0.08 per minute, same as Grok Voice 2.0. Agents on grok-voice-latest switched to 3.0 automatically.
On the analytics side, Grok Voice 3.0 competes within Artificial Intelligence and Audio — topics that collectively have 483.3k followers on Product Hunt. The dashboard above tracks how Grok Voice 3.0 performed against the three products that launched closest to it on the same day.
Who hunted Grok Voice 3.0?
Grok Voice 3.0 was hunted by Kumar Abhishek. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Grok Voice 3.0 including community comment highlights and product details, visit the product overview.
Kumar Abhishek
Grok Voice 3.0 is xAI’s new speech-to-speech model for voice agents. xAI announced it October 14, 2026, and calls it “the world’s most intelligent speech-to-speech model.”
Problem: Voice agents for support calls or in-car assistants have to feel natural. They need to answer fast, handle interruptions and pauses, and still get the task done. A slow or error-prone voice agent loses the caller.
Solution: Grok Voice 3.0 takes speech in and gives speech back directly, without a separate text step. Per xAI, latency is under one second. It handles agentic tasks like verifying customers, troubleshooting hardware, issuing credits and shipping equipment.
How it performs:
Speech-to-Speech Index: 86.9, ranked #1, against 83.2 for GPT-Live-1 and 82.6 for Gemini 3.8 Live
Big Bench Audio (speech reasoning): 98.5%
Task success rate: 94.8%
Full Duplex Bench (turn-taking and interruptions): 97.0%
Cost per task on Big Bench Audio: $0.025, against $0.030 for GPT-Live-1 and $0.055 for GPT-Realtime-2.1
In use:
Tesla vehicles: millions of conversations a day, from checking calendars to ordering coffee, hands-free. It also powers Grok Bot’s voice mode.
Starlink call centers: 20,000 customer calls a day in multiple languages, with about 70% resolved without a human
Pricing and access:
Voice Agent API: $0.08 per minute ($4.80 per hour), the same price as Grok Voice 2.0
Agents using grok-voice-latest switched to 3.0 automatically, with no changes needed
Who it’s for: developers building voice agents, such as support lines and in-car or device assistants, who want a single speech-to-speech model through an API.
Try it in the xAI Console · Read the voice docs · Read the announcement