📖 The AI Tool Bible

Audio

Voice cloning, music generation, speech-to-text.

60 tools

Why it matters

AI audio has split cleanly into three lanes: speech synthesis (TTS + voice cloning), music generation, and speech-to-text — each with a clear leader.

What's in here

Covers voice cloning and TTS (ElevenLabs, Resemble.ai, Murf), AI music generation (Suno, Udio), and speech-to-text (AssemblyAI, Whisper).

How to pick

Pick ElevenLabs for voice quality. Pick Suno or Udio for AI music. Pick AssemblyAI when you need diarisation and timestamps; pick Whisper when you can self-host and want zero cost.

ElevenLabs

Audio · ElevenLabs Multilingual v2

The gold standard for AI voice cloning and TTS.

Freemium· Free: $0 · Starter: $6 · Creator: $11 · Pro: $99 · Scale: $299TTSvoice cloning

Suno

Audio · Suno v4

Text-to-song AI — full vocal tracks from a prompt.

Freemium· Free Plan: $0 · Pro Plan: $8 · Premier Plan: $24songwritingdemos

Udio

Audio · Udio (proprietary)

Suno's main rival for AI-generated full songs.

Freemium· Free; Standard $10/mo; Pro $30/mofull songsmusic demos

AssemblyAI

Audio · Universal / Slam-1

Speech-to-text API with diarisation, summarisation, and topic detection.

Freemium· Pre-recorded Speech-to-Text API: $0.21 /hr · Universal-2: $0.15 /hr · Realtime Speech-to-Text API: $0.45 /hr · Universal-Streaming: $0.15 /hr · Universal-Streaming Multilingual: $0.15 /hrtranscriptiondiarisation

Chorus by ZoomInfo

Audio · In-house speech and NLP models (patented Chorus ML stack)

Enterprise conversation intelligence bundled with ZoomInfo's B2B data graph

Enterprise· ZoomInfo Professional: Contact sales · Copilot Advanced: Contact sales · Copilot Enterprise: Contact sales · Marketing Demand: Contact sales · ABM Lite: Contact salesSales call recording and transcriptionRep coaching and scorecards

Whisper

Audio · Whisper large-v3

OpenAI's open-source speech-to-text — the de-facto baseline.

Free· Free open weights; $0.006/min via OpenAI APItranscriptionself-hosted

Gong

Audio · In-house speech and language models, with additional agentic features reportedly built on frontier LLMs

Revenue AI platform that captures, transcribes, and analyzes customer conversations to drive sales outcomes.

Enterprise· Custom pricing based on per-user licenses plus a platform fee scaled to team size; no public tier pricing. Prospects request a quote via a demo form.Sales call recording and transcriptionDeal risk and pipeline inspection

Grain

Audio · Claude, ChatGPT

AI meeting notes, coaching, and an MCP feed for your agents

Freemium· Free (45-min meeting cap, 90-day history) / Starter ~$15 per user/mo (unlimited meetings, advanced AI) / Business & Enterprise tiers with CRM sync and admin controlsAI meeting notes and summariesSales call transcription and coaching

Mubert

Audio · Proprietary sample-based generative engine

AI music generator that spits out royalty-free background tracks for video, podcast, and app use.

Freemium· Ambassador: Free · Creator: $14 · Pro Most popular: $39 · Business: $199background-musicroyalty-free-soundtracks

AudioCraft

Audio · MusicGen, AudioGen, EnCodec

Meta's open-source research toolkit for generating music and sound effects from text via a single autoregressive language model.

Free· Free and open source; self-hostedtext-to-musicsound-effects

Fireflies.ai

Audio · Multi-model (proprietary ASR + LLM layer)

AI meeting assistant that joins calls, transcribes them, and turns the talk into searchable notes and action items.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salesmeeting transcriptioncall summaries

Soundraw

Audio · Proprietary in-house model

AI music generator that spits out royalty-free, customizable tracks by genre and mood.

Freemium· Creator: €5.83/mo · Artist Starter: €10.75/mo · Artist Pro: €12.42/mo · Artist Unlimited: €17.42/mo · Enterprise: Askbackground musicvideo soundtracks

AIVA

Audio · Proprietary (AIVA)

AI music composition tool that generates royalty-friendly tracks in 250+ styles with editable MIDI output.

Freemium· Free; Standard ~â‚¬11/mo, Pro ~â‚¬33/mo (billed yearly)music-generationsoundtrack-composition

ElevenLabs Conversational AI

Audio · ElevenLabs Scribe (ASR) + pluggable LLM + ElevenLabs TTS

Production-grade voice agent platform layering ElevenLabs TTS, ASR, and LLM orchestration into a single deployable stack.

Paid· Free: $0 · Starter: $6 · Creator: $11 · Pro: $99 · Scale: $299voice-agentsivr-replacement

Read AI

Audio · Multi-model

AI meeting copilot that transcribes, summarizes, and surfaces action items across Zoom, Meet, and Teams.

Freemium· Free: Free · Pro: $19.75 · Enterprise: $29.75 · Enterprise+: $39.75meeting-transcriptionmeeting-summaries

Respeecher

Audio · Proprietary Respeecher voice models

Studio-grade AI voice cloning and TTS used by Hollywood productions for speech-to-speech and dubbing work.

Freemium· Free trial; TTS API $2/hour pay-as-you-go; custom enterprise pricing for voice cloningvoice-cloningtext-to-speech

Hume AI

Audio · Octave, EVI, TADA

Emotionally intelligent voice AI with expressive TTS, speech-to-speech, and human-feedback evaluation APIs.

Freemium· Free: $0 · Starter: $3 · Creator: $7 · Pro: $70 · Scale: $200expressive-ttsvoice-cloning

Resemble.ai

Audio · Resemble v2 / Localize

Enterprise voice cloning with deepfake-detection layer.

Paid· From $19/mo Creator; enterprise customenterprise voice cloningcompliance

Sesame

Audio · Sesame CSM (1B / 3B / 8B)

Conversational voice AI aiming to cross the uncanny valley with context-aware, emotionally aware speech.

Free· Free research preview; consumer product pricing not announcedconversational-voicetext-to-speech

WellSaid

Audio · Proprietary WellSaid TTS

Enterprise-grade AI text-to-speech built on licensed voice actor recordings.

Freemium· Free trial; paid plans for teams and enterprise (contact sales for API)text-to-speeche-learning narration

Wispr Flow

System-wide voice-to-text dictation that auto-edits filler words and learns your jargon.

Freemium· Pro Monthly Plan: $15.00 · Pro Annual Plan: null · Monthly Student Plan: $7.49 · Pro Weekly Plan: $4.49 · Annual Student Plan: nulldictationvoice-to-text

Boomy

Audio · Proprietary (undisclosed)

Generative AI music maker that lets anyone produce a song in under a minute and push it to Spotify.

Freemium· Free: $0.00 · Recommended: $14.99 · Pro: $39.99ai-music-generationsong-creation

Deepgram

Audio · Nova, Flux, Speak (proprietary)

Production-grade speech-to-text, text-to-speech, and voice-agent APIs for real-time and batch audio.

Freemium· Free credits on signup; usage-based pricing; enterprise contracts availablespeech-to-texttext-to-speech

Murf

Audio · Murf Gen2

TTS aimed at corporate voiceover and e-learning.

Freemium· Free preview; from $19/mo Creator; $66/mo Businessvoiceovere-learning