212AY Resources
AI Tools
Library
+500 hand-picked AI tools for chat, writing, images, video, code, automation and more — with what each one does best, explained simply.
535 tools
Cartesia
Ultra-low-latency voice AI built on state space models, with the Sonic text-to-speech engine designed for real-time conversational agents and on-device use.
Hume AI
Research lab building emotionally intelligent voice AI: its empathic voice interface understands tone and vocal expression and responds with appropriate emotion.
Vapi
Developer platform for building phone and web voice agents: it orchestrates transcription, LLMs and text-to-speech into one low-latency pipeline with call handling built in.
Retell AI
Platform for building and deploying AI phone call agents for sales, support and appointment booking, with a no-code agent builder, testing tools and telephony integrations.
Bland AI
Enterprise AI phone agents that sound human, handle millions of calls in parallel and follow programmable conversation pathways for sales and support.
Voicemod
Real-time AI voice changer and soundboard for gaming, streaming and calls, with dozens of voice effects that work in Discord, OBS and most games.
Kits AI
AI voice toolkit for musicians: convert vocals into licensed artist voices, clone your own singing voice, and generate harmonies, vocoder effects and stems.
Amazon Polly
VoiceFreemium
AWS text-to-speech service with lifelike neural and generative voices in dozens of languages, SSML control and pay-per-character pricing with a free tier.
Google Cloud Text-to-Speech
Google's speech synthesis API with hundreds of WaveNet, Neural2 and Chirp voices across 50+ languages, including custom voice options for enterprises.