Inworld AI

Realtime text-to-speech and LLM inference platform that can power voiced, interactive characters.

Visit official site ↗Free tier + paidCommercial use allowed

Verdict: For realtime TTS and LLM-driven characters on pay-as-you-go pricing; its terms assign outputs to you.

Best for
Realtime TTS and LLM for voiced characters
Tasks
Voice & dialogue, NPC & AI characters
Engines
Any (standard file export / engine-agnostic)
Price & free tier
Free plan Free pay-as-you-go account
Free pay-as-you-go ($25 per 1M chars TTS). Subscriptions $25, $100, $300 and $1,500 per month with included credits and lower rates.
Source: https://inworld.ai/pricing
Export formats
unverified
Commercial use & licence
Commercial use allowed
Terms: subject to compliance, Inworld assigns to you all of its right, title and interest in Outputs. Pricing page also lists a commercial license.
Source: https://inworld.ai/terms
Revenue share / caps
unverified
API
Available TTS, STT and LLM APIs
Source: https://docs.inworld.ai/developer-tools/inworld-cli
MCP server
Official MCP server MCP server via the Inworld CLI
Source: https://docs.inworld.ai/developer-tools/inworld-cli
Last checked

We summarise what the vendor's own pages say on the date above. "Unverified" means we couldn't confirm that detail. Read the vendor's current terms before you ship anything.