- Best for
- Developers building games, apps and voice agents who want top quality at API prices
- Price
- Freemium · from $25/month
Free: Pay as you go with up to 70 minutes of TTS included - Platforms
- Web, API
- Made by
- Inworld AI, Mountain View, USA · since 2021
What it is
Inworld's Realtime TTS-2 models generate expressive, low-latency speech for apps, games and voice agents, with instant voice cloning on every plan. Developers use the API, and a web TTS Playground lets anyone try voices and generate audio.
Latest: Launched its Realtime TTS-2 model in May 2026.
What the AI does
- Realtime TTS-2 and TTS-2 Flash models
- Instant voice cloning on all plans
- Professional voice cloning (add-on)
- TTS Playground
- Speech-to-text and agent runtime
Pros and cons
- Realtime TTS-2 ranks in the Speech Arena top ten
- Low per-character prices
- Instant cloning even on the free tier
- Aimed at developers; little for voiceover editing
- Playground limited to 2,000 characters on the free tier
- No mobile apps
How it scores
Voice quality9
Ease of use6
Features7
Value for money8.5
Platforms6
Excellent voices at a low price, but it's a developer platform rather than a creator studio.
Feature checklist · 5 of 9
- ✓Self-serve voice cloning from your own sample (yes)
- –Library of 500+ voices (no)
- ✓Speech in 30+ languages (yes)
- –Emotion or speaking-style control (no)
- ✓Pronunciation, pacing or pitch controls (yes)
- ✓Low-latency real-time speech for voice agents (yes)
- –AI dubbing or translation of video (no)
- –Narration editor for video or slides (no)
- ✓API for developers (yes)
How we score apps →
Alternatives
See all Inworld TTS alternatives, ranked →
- ElevenLabs 8.7/10Creators and developers who want the most natural-sounding voices and the widest toolset
- Speechify Studio 8.0/10Creators who want strong voices plus dubbing and video editing in one cheap suite
- Fish Audio 7.9/10Budget-conscious creators who want strong voices and cloning without ElevenLabs prices
- Cartesia 7.7/10Developers building real-time voice agents and phone bots
ElevenLabs vs Inworld TTS
Sources