Inworld TTS

situational

Realtime text-to-speech API aimed at voice agents and characters, with voice cloning and LLM routing.

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ledger entry · observed by @whysanesanders

Inworld TTS-2 is built for low-latency, expressive voice agents and ranks well on TTS benchmarks. The realtime steering and character-friendly voices make it a strong choice for games, companions, and call agents. It is still a narrower ecosystem than ElevenLabs, and the bundled LLM/STT credits can obscure true per-project cost.

Strengths

Low-latency expressive TTS-2 built for voice agents and characters.
Ranks well on TTS benchmarks for realtime use cases.
On-Demand free tier includes up to 70 minutes of TTS.

Known limitations

Pricing is credit-based across TTS, STT, and LLM routing; estimating bills for mixed workloads takes work.
Smaller community and third-party integration library compared to the established audio leaders.
Voice cloning and professional features are gated behind higher tiers or paid add-ons.

Use it when

Games, companions, and call agents that need expressive realtime speech.
Projects where character-friendly voices matter more than ElevenLabs' ecosystem breadth.

Skip it when

You need transparent per-project cost across mixed TTS/STT/LLM credits.
Your stack depends on the largest third-party integration library.
Voice cloning is required but the budget only reaches the On-Demand tier.

Buy-check

·Price — freemium, On-Demand free tier includes up to 70 min TTS; paid plans start at $25/mo (Creator), then $100/mo Builder, $300/mo Developer, $1,500/mo Growth, and Enterprise custom. as of 2026-08-19. Open the pricing page, not a screenshot.
·Free tier — Free tier exists — burn it first.
·Cancel fallout — What happens to your data/projects on cancel — check the ToS, not the FAQ.
·Seat math — Per-seat pricing multiplies quietly. Count seats before the annual plan.
·Who skips it — Also skipped when: You need transparent per-project cost across mixed TTS/STT/LLM credits.; Your stack depends on the largest third-party integration library..

Price trailchangelog →

No price move in this repo yet.

Facts

pricing: freemium¹
price note: On-Demand free tier includes up to 70 min TTS; paid plans start at $25/mo (Creator), then $100/mo Builder, $300/mo Developer, $1,500/mo Growth, and Enterprise custom.
free tier: yes
open source: no
api: yes
self-host: no
category: audio
evidence: source-verified
Models: locked