Grok Voice 3.0

Grok Voice 3.0

SpaceXSI
+
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About

Grok Voice 3.0 is a speech-to-speech model offered through the Grok Voice Agent API for developers building real-time voice applications. It accepts audio and text and returns spoken audio or text through a WebSocket session, supporting conversational turn-taking, interruptions, and function calling. Developers can connect the model to custom functions and server-side tools, including web search, X search, collections, and remote MCP servers. The API is intended for interactive voice agents such as customer-support and service-call experiences, and is also used for voice interactions in Tesla vehicles and Grok Bot. Billing is usage-based, with audio charged per minute and text input events billed separately. The API documentation includes setup instructions and examples for Python and JavaScript clients.

About

Massive is a market-data infrastructure platform built to provide real-time and historical financial data to developers, startups, and trading firms. It delivers institutional-grade market data across stocks, options, indices, currencies, and futures, all via a streamlined API, WebSocket, flat-file S3 access, or SQL query interface. The platform emphasizes low latency, direct connectivity to major exchanges (NYSE, NASDAQ, CBOE, OTC), and data normalization to eliminate survivorship bias and outdated pipelines. Massive positions itself as “modernizing Wall Street” by removing legacy bottlenecks and providing the same quality of market data typically reserved for large institutions, but now accessible to any app builder. The platform also includes extensive documentation, client libraries in Python, JavaScript, Go, and Java, tutorials, and example projects to accelerate integration.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers building real-time voice applications, phone agents, interactive voice systems, and customer-support experiences.

Audience

Developers, fintech startups and trading firms requiring a tool offering institutional-grade market data across multiple asset classes to build apps, analytics or trading systems

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$0.08/min
Audio is $0.08 per minute. Text-only input events are $0.004 each. Server-VAD sessions are billed for the full session duration; push-to-talk sessions are billed for audio sent and received.
Free Version Not Supported
Free Trial Supported

Pricing

$29 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

SpaceXSI
Founded: 2023
United States
x.ai/api/voice

Company Information

Massive
Founded: 2017
United States
massive.com

Alternatives

Alternatives

Categories

AI Voice Models Supported

Categories

Integrations

Coinbase Not Supported
Go Not Supported
Google Cloud Platform Not Supported
Google Sheets Not Supported
Grok Supported
Grok Bot Supported
Grok Voice Agent Supported
Grok Voice Agent Builder Supported
JSON Not Supported
Java Not Supported
JavaScript Not Supported
Microsoft Excel Not Supported
Model Context Protocol (MCP) Supported
Motley Fool Not Supported
Nasdaq Boardvantage Not Supported
Public Not Supported
Python Not Supported
Revolut Not Supported
SQL Not Supported
Twilio Supported

Integrations

Coinbase Supported
Go Supported
Google Cloud Platform Supported
Google Sheets Supported
Grok Not Supported
Grok Bot Not Supported
Grok Voice Agent Not Supported
Grok Voice Agent Builder Not Supported
JSON Supported
Java Supported
JavaScript Supported
Microsoft Excel Supported
Model Context Protocol (MCP) Not Supported
Motley Fool Supported
Nasdaq Boardvantage Supported
Public Supported
Python Supported
Revolut Supported
SQL Supported
Twilio Not Supported
Claim Grok Voice 3.0 and update features and information
Claim Grok Voice 3.0 and update features and information
Claim Massive and update features and information
Claim Massive and update features and information