In World AI

Inworld AI is a realtime AI platform for developers building voice assistants, AI companions, educational applications, games, customer experiences, and other consumer-facing products. It combines natural text-to-speech, speech-to-text, speech-to-speech conversations, AI model routing, and optimized inference within one platform.

Its Realtime TTS technology generates expressive speech with controls for tone, pacing, volume, emotion, pronunciation, and speaking style. Developers can design voices using text descriptions, clone a voice from a short audio sample, and produce speech in more than 200 languages. Inworld’s speech-to-text system supports live transcription, speaker identification, word-level timestamps, custom vocabulary, voice-activity detection, and contextual voice profiling.

The Realtime API supports low-latency, two-way voice conversations through WebSockets or WebRTC. It includes intelligent turn-taking, function calling, dynamic context management, custom voices, and the ability to switch between different AI models.

Inworld also provides an intelligent LLM router that connects applications to models from OpenAI, Anthropic, Google, and hundreds of other options through a single API. Teams can automatically select models based on cost, intelligence, user type, context, reliability, or subscription tier while using built-in failover, analytics, and A/B testing.

Inworld is best suited for developers and companies that need fast, natural, controllable AI interactions that can scale to large consumer audiences without building separate voice, model-routing, and inference systems.