Elon Musk announced on October 25 that Grok's @Bot assistant can now place phone calls on behalf of users, handle requests, take notes during the conversation, and send back a written summary. The capability pushes xAI's assistant beyond text chat and into the territory of real-world task automation — a space where Google, OpenAI, and Apple have all signaled ambitions but shipped limited consumer-facing products.
Musk's announcement arrived in two posts within four minutes of each other, pointing users to try the feature immediately. The underlying technology, according to xAI's own documentation, is Grok Voice 3.0, which launched publicly on October 14.
What Grok Bot Can Actually Do on a Call
According to Musk's post, the workflow is end-to-end: a user describes what they need, Grok Bot dials the number, speaks with whoever picks up, and reports back. The practical implications are broader than they first appear. Per 247wallst.com's coverage of the Grok Bot 0.77 release, the agent can sit on hold, navigate interactive voice response (IVR) menus by pressing keys, and get transferred between departments without dropping the task. Users can watch a live transcript as the call unfolds.
That transcript-plus-summary pattern is the key differentiator. Most consumer AI assistants that have attempted phone tasks — Google Duplex being the most-cited precedent — stopped short of giving users a reviewable record and a clean post-call recap. Grok Bot delivers both by default.
The Technology Behind It
Grok Voice 3.0 is the engine. According to xAI's launch materials and third-party benchmarks from Artificial Analysis published October 13, the model ranks #1 on the Speech-to-Speech Index with a score of 86.9 and hits a 97% success rate on the Full Duplex Bench — the metric that measures natural two-way conversation without the awkward pauses that have historically given voice bots away.
Latency is the other half of the equation. Grok Voice 3.0 delivers initial responses in under 800 milliseconds, a 40% reduction from the previous generation, according to xAI. On a phone call, sub-second response time is the threshold between "this is a bot" and "this is a person who sounds a little stiff."
Key Figures
| Metric | Value | Source |
|---|---|---|
| Grok Bot version | 0.77 | 247wallst.com |
| Voice engine | Grok Voice 3.0 | xAI |
| Initial response latency | Under 800 ms | xAI |
| Full Duplex Bench score | 97% | Artificial Analysis |
| Voice Agent API pricing | $0.08 / minute ($4.80/hr) | xAI |
| Grok Bot access (Cursor Pro) | $20 / month | 247wallst.com |
How We Got Here
Grok Bot launched in public beta on August 11, 2026, for desktop and iOS, with Android support following in early September, according to 247wallst.com. The 0.77 release that enables calling also adds infrastructure for a Mac setup screen for connecting apps (currently switched off) and the ability for Grok Bot to join a user's private Tailscale network — a sign xAI is building toward deeper integration with users' own tooling, not just one-off tasks.
The voice stack has been getting real-world mileage inside Musk's own companies for months. According to xAI, Grok Voice 3.0 already handles millions of daily conversations in Tesla vehicles and powers Starlink call centers, which answer 20,000 customer calls per day with roughly 70% resolved without human intervention. In other words, the model shipping to consumers has been stress-tested on a volume most startups never see.
Access and Pricing
Grok Bot access is bundled across several subscription paths. Per 247wallst.com, it is included with paid individual Cursor plans, the Cursor Teams plan, and can be linked with SuperGrok, SuperGrok Plus, SuperGrok Heavy individual subscriptions, or a self-serve Grok Business plan. Cursor Pro lists Grok Bot at $20 per month as a standalone line item.
For developers building their own voice agents, the Grok Voice 3.0 API is available at $0.08 per minute — unchanged from Voice 2.0 pricing, according to xAI's launch announcement.
What It Means for Tesla Owners
There is no direct in-vehicle integration announced today — Grok Bot calling is a Grok app feature, not a Tesla software update. That said, owners who already use Grok inside their vehicles via the existing in-car integration have a reasonable expectation that voice-driven tasks like "call the dealership and ask about my service appointment" could land in the car at some point, given that Tesla vehicles already run on Grok Voice 3.0 infrastructure for customer support interactions.
For now, the practical workflow is: use the Grok app on your phone to delegate calls, then let the summary come back as a note. Appointment confirmations, restaurant reservations, utility hold queues, and warranty service inquiries are the obvious starting points.
What to Watch Next
- In-vehicle delegation. Whether Tesla's in-car Grok integration eventually gains the same call-placing capability — and whether it ties to the driver's phone or runs through Tesla's own account layer.
- Enterprise rollout. With 70% autonomous resolution already demonstrated at Starlink call centers, expect xAI to pitch the Voice Agent API aggressively to third-party businesses.
- Regulatory friction. AI-placed calls raise consent and disclosure questions that vary by state and country. How Grok Bot handles the "this call may be recorded" problem is unresolved publicly.
- The Mac app and Tailscale hooks. Both landed quietly in 0.77. When xAI flips them on, Grok Bot becomes less of an assistant and more of an operator inside a user's actual workflow.
Musk's framing — "Try Grok @Bot" — is characteristically light on detail, but the underlying stack has been shipping to Tesla, SpaceX, and Starlink users at scale for weeks. The consumer version arriving today is less of a demo than a productization of infrastructure that is already in daily use.
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Sources & reporting notes
The links below identify the material source records used for this report.
- @elonmusk on X (2026-10-25T14:31:41.000Z) — Direct source
- @elonmusk on X (2026-10-25T14:35:59.000Z) — Direct source
Source links are preserved as published or accessed. See our editorial standards and corrections policy.
The BASENOR Editorial Desk covers Tesla, SpaceX, and related technology, curating reporting from primary sources — official accounts, regulatory filings, and software release data. Every article passes source-record and fact-checking review before publication. About the newsroom.
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