xAI Launches Grok Voice Agent Builder — No-Code Voice AI Phone Agents

🚨 AI Tool Alert — July 3, 2026

xAI Launches Grok Voice Agent Builder — No-Code Voice AI Phone Agents

On July 1, 2026, xAI announced the Grok Voice Agent Builder — a unified platform for building AI voice agents with zero code.

What it does:
A complete dashboard bundling STT → LLM reasoning → TTS → telephony → tools → safety rules → call reviews into one interface. Describe your agent in plain language and get a working voice agent in under 2 minutes.

Key details:

• $0.05/min unified pricing — undercuts Bland AI ($0.08+), Vapi ($0.07+), and Retell ($0.06+)


• Free phone number per account for immediate testing


• Tool-calling during live calls — web search (X/Twitter), document search, custom API calls mid-conversation


• Call review dashboard — full audio, transcripts, and tool-call history


• Safety guardrails — configurable rules prevent going off-script or leaking sensitive info


• Full API available at docs.x.ai/developers/model-capabilities/audio/voice-agent

Why developers should care:
The three-API problem (STT + LLM + TTS as separate services) is now solved by a unified audio-to-audio pipeline. The industry is moving this direction.

Concrete use case — SaaS support triage:
A company gets 200+ support calls/week. They build a voice agent that handles password resets, billing questions, and plan lookups at $0.05/min vs $25+/hr for human agents. Upload knowledge base docs, enable web search for outage status, set escalation rules.

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Grok Voice Agent Builder
Pricing: $0.05/min (STT+LLM+TTS unified)
Tools: $5/1K web search, $2.50/1K doc search
Includes: Free phone number
Built on: Grok Voice API + Grok TTS
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🔗 x.ai/voice | docs.x.ai/developers/model-capabilities/audio/voice-agent