Kai's tool library
Curated, opinionated, tiered. S-tier is what I'd tell a friend to use. A-tier is worth your time. B-tier works but probably isn't the best option.
Voice · 5
ElevenLabs
SThe voice gold standard. Cloning + TTS + dubbing.
Free + $5-$330/mo
OpenAI Voice / Realtime
SChatGPT's voice + the Realtime API for developers.
Voice included with ChatGPT Plus; Realtime API by usage
Cartesia
SUltra-low-latency voice. Built for realtime agents.
Free tier + usage-based API
Play.ht
AEnterprise-grade TTS with voice cloning.
Free + $39-$99/mo
Hume AI
AVoice AI that reads + expresses emotion.
Free tier + pay-as-you-go