GPT-Live voice API routing is the next operator decision as OpenAI brings full-duplex voice, background model delegation, and realtime safeguards toward developers.
OpenAI released GPT-Realtime-2.1 and GPT-Realtime-2.1-mini on July 6. The two-tier structure, configurable reasoning effort, and a new audio pricing baseline change how operators should route voice agent traffic.
xAI's Voice Agent Builder beta (July 1, 2026) brings Grok Voice into production at $0.05/min. Per-minute billing, 100 concurrent sessions, and telephony-included pricing introduce new operator routing decisions.
MiMo-V2.5-TTS pushes voice generation into the agent stack, where routing teams need policies for latency, style control, consent, storage, fallback, and cost attribution.
