Inworld AI · Realtime TTS

Realtime TTS-2

Conditions on multi-turn audio history rather than a single sentence, inferring emotional state, tone and pacing from how the conversation has actually gone, and replaces fixed emotion enums with natural-language direction. One voice identity holds across more than 200 languages, with language switching inside a single generation. Inworld states sub-100ms time-to-first-byte and a first-place Artificial Analysis ranking for realtime TTS from blind testing. Proprietary and hosted - no weights and no model size disclosed - through Inworld's API and via Cloudflare and DeepInfra.