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AI Model & API Guides · Page 12 of 20

Source-linked guidance for AI models, API integration, and developer workflows—turning fast-changing prices, quotas, capabilities, and limits into decisions you can verify.
Grok Voice Agent API contract board showing endpoint, pricing, auth split, and route selection
API Guides

Grok Voice Agent API: Endpoint, Pricing, and Quickstart Guide (April 2026)

xAI's developer-facing realtime voice route is the Grok Voice Agent API at `wss://api.x.ai/v1/realtime`. The current public self-serve surface shows `$0.05 / min`, `100` concurrent sessions per team, and a `30` minute max session. Use a server API key on trusted backends, ephemeral tokens for browser or mobile clients, and switch to the separate TTS API when you only need one-shot speech generation.

14 min