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Voice Agent Builder: Stats + Think Fast 2.0

Thu Jul 30, 2026 · 05:42 PM EDT

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SpaceXAI <noreply@x.ai>
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rdwyer@fastmail.com

Agent statistics, import from Twilio, smarter transfers, and Think Fast 2.0.
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What's new in Voice Agent Builder

Everything you need to run voice agents in production.

Open Agent Builder

Highlights

Agent statistics

A new Statistics tab shows minutes, calls, and tool usage so you can see how agents perform over time.

Import numbers from Twilio

Bring your Twilio numbers into Agent Builder and assign them to agents.

Improve with Grok

Ask Grok to refine your agent in the builder. Tighten prompts, adjust behavior, and stage improvements on the draft before you publish.

Model selector

Choose the voice model for each agent in the builder, including the latest Think Fast models.

Conversation export

Multi-select conversations and export them as JSONL for analysis, evals, or archival.

Search filters & smarter transfers

Set allow lists and date ranges for web and X search in the builder. If a phone transfer is busy, unanswered, or declined, the caller is reconnected to your agent with context on why.

Grok Voice Think Fast 2.0 is available in Agent Builder

Our most capable speech-to-speech model is ready to select in Agent Builder, with stronger reasoning while speaking, more accurate transcription, and more natural conversation. Pick it from the model selector on any agent to try it.

Try It Free

Read about Think Fast 2.0

SpaceXAI Team

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