I just tried xAI's new Grok Voice Agent Builder, and my first impression is that it's taking a very different approach from other voice agent platforms. Compared to platforms like Vapi, Retell, and Bland AI: • Built-in real-time web search – No need to integrate external search APIs for up-to-date information. • End-to-end stack – Telephony, voice model, reasoning, and tools are all integrated into one platform. • Sub-second responses – Conversations feel fast and natural. • Simple setup – You can build and deploy a voice agent in minutes. • Competitive pricing – Starting at $0.05/minute. Platforms like Vapi and Retell still have advantages in terms of ecosystem maturity, integrations, and production deployments. But Grok's biggest strength is its all-in-one experience and native access to real-time information. The AI voice agent space is moving fast, and Grok just became a serious competitor. What matters most to you in a voice agent platform - speed, integrations, pricing, or built-in search?