@rohanpaul_ai: Inworld has acquired voice-agent platform Ultravox and already moved its built-in voices onto Realtime TTS-2. Ultravox …

X AI KOLs Following News

Summary

Inworld has acquired the real-time voice-agent platform Ultravox and migrated its built-in voices to Realtime TTS-2, which supports natural-language inline instructions for controlling pace, tone, and emotion during a conversation.

Inworld has acquired voice-agent platform Ultravox and already moved its built-in voices onto Realtime TTS-2. Ultravox is a full voice agent platform. It understands what you said and what you meant, works through it, calls tools, finishes the task, and handles the turn taking and interruptions in real time. Realtime TTS-2, which now sits behind the built-in Inworld voices on Ultravox, takes direction in plain language. i.e. with inline instructions you can change pace, tone and emotional delivery for a specific stretch of speech. So instead of setting a rate to 0.85 for the whole call, the agent can ask the voice to slow down while it walks someone through a complicated step, then go back to normal.
Original Article
View Cached Full Text

Cached at: 10/01/26, 04:15 AM

Inworld has acquired voice-agent platform Ultravox and already moved its built-in voices onto Realtime TTS-2.

Ultravox is a full voice agent platform. It understands what you said and what you meant, works through it, calls tools, finishes the task, and handles the turn taking and interruptions in real time.

Realtime TTS-2, which now sits behind the built-in Inworld voices on Ultravox, takes direction in plain language. i.e. with inline instructions you can change pace, tone and emotional delivery for a specific stretch of speech.

So instead of setting a rate to 0.85 for the whole call, the agent can ask the voice to slow down while it walks someone through a complicated step, then go back to normal.

Inworld AI (@inworld): We’re excited to announce that @ultravox_dot_ai is now part of Inworld.

Ultravox is the platform developers use to build real-time voice agents. We’ve worked with the team for a while through our TTS partnership, and today members of the team that built it are joining Inworld to

Similar Articles

Advancing voice intelligence with new models in the API

OpenAI Blog

OpenAI has announced three new voice models in its API: GPT-Realtime-2 with advanced reasoning, GPT-Realtime-Translate for live multilingual translation, and GPT-Realtime-Whisper for streaming transcription, aiming to enable more natural and action-oriented voice applications.