CATEGORY 08 · 13 TOOLS
Voice & audio
Text-to-speech, voice cloning, transcription and voice agents.
ESSENTIAL IN VOICE & AUDIO

ElevenLabs
AI voice platform: text-to-speech, speech-to-text, voice cloning, dubbing, music and voice agents.

LiveKit
Open-source framework and cloud for building voice, video and physical AI agents.
All 13 Voice & audio tools

ElevenLabs
AI voice platform: text-to-speech, speech-to-text, voice cloning, dubbing, music and voice agents.
EssentialFree tier

LiveKit
Open-source framework and cloud for building voice, video and physical AI agents.
EssentialFree tier

Cartesia
Voice AI company: Sonic text-to-speech, Ink speech-to-text and Managed Agents, a fully managed platform to build and run real-time voice agents…
Worth a lookPricing unknown

Cekura
Testing and monitoring for AI voice agents (YC F24).
Worth a lookFree tier

Deepgram
Real-time speech-to-text, text-to-speech and voice agent APIs, used by enterprises and 200k+ developers.
Worth a lookFree tier
Dessa (Block)
Research-preview voice AI from a small AI lab inside Block (Square, Cash App), reporting to Jack Dorsey and led by Ragavan Thurairatnam, co-founder…
Worth a lookContact sales

Fish Audio
AI voices you can't tell from humans: expressive multilingual speech models and developer APIs.
Worth a lookFree tier

Gradium
The voice layer for agents: real-time TTS, STT, voice cloning, voice design and live translation.
Worth a lookFree tier
NVIDIA Nemotron 3.5 Transcribe
NVIDIA's open-weight speech model (34B total / 4.3B active parameters): transcription in 40 languages, translation to and from English,…
Worth a lookFree / open source

Speechmatics
Speech recognition for agents: 'the best ears in AI' to understand every voice.
Worth a lookFree tier
Suno
AI music generator; now usable from Claude, ChatGPT and other MCP apps (beta).
Worth a lookFree tier

Vapi
Developer platform to build, test and deploy voice AI agents at scale.
Worth a lookFree tier

Wispr Flow
Voice dictation that turns speech into formatted text in any app; now with Notetaker.
Worth a lookFree tier