Audio & dialogue

Inworld AI

Game-focusedSources checked 31 Aug 2026

Realtime TTS, speech recognition, speech-to-speech, and model routing for interactive characters and game dialogue.

Inworld now fits runtime voice and conversation infrastructure more than prewritten character design, with APIs for Unity, Unreal, and custom engines.

Best forRuntime voice and responsive NPC dialogue
PriceStart freeUsage-based
Workflow fitUnityUnreal
WHEN TO USE IT

Where Inworld AI fits

Strong fit

  • Low-latency character speech
  • Player speech recognition
  • Routing dialogue across multiple models

Know before choosing

  • This is API infrastructure and requires integration work
  • Runtime cost scales with speech and model usage
COMPATIBILITY

Project fit

Task coverageAudio & dialogue · Game generation & prototypes
Build stagePrototype · Vertical slice · Production
Formats & outputsVaries by feature
IntegrationsREST API · WebSocket · WebRTC
AccessUsage-based
COMMON QUESTIONS

About Inworld AI

What is Inworld AI useful for?

Runtime voice and responsive NPC dialogue.

Which engines can I use with Inworld AI?

Unity, Unreal

What can I export from Inworld AI?

The official listing does not publish one fixed format list; check the feature you plan to use.

How much does Inworld AI cost?

Start free. On-Demand starts free with up to 70 minutes of TTS. Realtime TTS-2 Flash is $15 per 1M characters; Creator is $25/month with $25 in credits.

What should I check before choosing Inworld AI?

This is API infrastructure and requires integration work. Runtime cost scales with speech and model usage.

OFFICIAL LINKS

Check features and current terms

PRICE & ACCESS

Start free

On-Demand starts free with up to 70 minutes of TTS. Realtime TTS-2 Flash is $15 per 1M characters; Creator is $25/month with $25 in credits.

Check current pricing