xAI Launches Grok Voice 3.0 with API Priced at $0.08 per Minute

The notable detail here is less the model itself than the pricing structure: charging by the minute rather than per token or per request ties cost directly to call duration, which is the metric that matters for voice agents handling live conversations. That makes the API easier to model for developers building sustained speech-to-speech workloads, and it puts xAI into a pricing conversation with other voice API providers. Whether per-minute metering becomes the standard for this category, and how it holds up under longer sessions, is the open question worth watching.