Best AI tools for voice, speech, and music

An AI audio platform covering text-to-speech (70+ languages), instant/professional voice cloning, dubbing (auto-translates video into 30+ languages preserving speaker voice), Conversational AI voice agents, and AI sound effects.

Audiobook/podcast narration, video and e-learning voiceovers, media localization/dubbing, and IVR/customer-support voice agents.

Usage is metered by credits (roughly 1 character ≈ 1 credit for standard models, though the ratio varies by model tier). Professional Voice Cloning requires identity verification; celebrity/high-risk voices are blocked from cloning.

$0/month — 10,000 credits/month (roughly 10 minutes of audio at standard models), including TTS, Speech-to-Text, Sound Effects, and 3 Studio Projects.

Users can opt out of model-training use anytime via account settings; once disabled, new data isn't used for training. Enterprise customers are excluded from training by default. Voice cloning requires consent/legal right to clone any voice.

Real-time spoken conversation with ChatGPT in the app, including live video/screen-share on mobile for subscribers — hands-free Q&A, tutoring, or visual assistance via camera.

Hands-free conversational practice, tutoring, or live visual assistance via camera/screen share — not a standalone TTS/production tool.

One voice session at a time; sessions auto-end after 1 hour idle. No image generation, file uploads, or Code Interpreter during voice. Video/screen-share is mobile-only.

Runs on GPT-4o mini, capped at 2 hours/day — one of the few exact published numbers in this category. 9 selectable voices.

No training on voice/video by default — opt-in required via Data Controls, available only on personal Free/Plus/Pro accounts (not Business/Enterprise/Edu). Audio/video retained 30 days.

A text-to-speech app converting documents, PDFs, web pages, and books into spoken audio, plus voice typing, AI podcast creation, and a Voice AI Assistant.

Accessibility (dyslexia, visual impairment) and hands-free consumption of long-form text while multitasking or commuting.

Free tier is explicitly described by Speechify as "10 robotic sounding voices," capped at 1.5x playback speed (vs. 5x paid). No AI Summaries, Scan & Listen, or Voice Typing on free.

$0/month — 1.5x speed, 10 robotic voices, text-to-speech only.

No explicit opt-in/opt-out language for training on user content was conclusively located on Speechify's public pages — a genuine transparency gap worth knowing before relying on any specific privacy claim.

Generates full songs — vocals, lyrics, and instrumentation — from a text prompt in under a minute, including uploading/extending real audio on paid tiers.

Fast, complete-song creation for hobbyists; commercial-release work on paid tiers only.

Free tier is locked to the older v4.5-all model — the newer v5.5 is paid-only. No stem separation on free. No commercial-use rights on free-tier outputs at all.

50 credits/day (roughly 10 songs/day), v4.5-all model only, no commercial use, no stems.

Explicitly uses your submissions/content to train its models under "legitimate interest," with no self-serve training opt-out. Voice-cloning biometric data is retained up to 3 years.

Generates full songs from text prompts with strong support for extending, remixing, and "inpainting" — editing specific sections of an existing track.

Iterative editing and remixing of longer (roughly 2-minute) song structures, rather than one-shot generation.

Free tier is capped at 3 long-format (130-second) songs/day regardless of credit balance, and credits don't roll over. Udio's live pricing and privacy pages are JavaScript-rendered, limiting independent verification of some figures.

10 credits/day plus a 100-credit/month pool; a 32-second song pair costs 2 credits, a 130-second pair costs 4 credits.

Commercial-use rights and watermarking status on the free tier are unpublished/unconfirmed against a directly-verified official page — treat any specific claim here as unverified until checked live.

MusicFX is Google Labs' free browser tool turning text prompts into music clips, powered by Google DeepMind's Lyria model family — also offered via Vertex AI (Lyria 2/3) and the Gemini API (Lyria RealTime) for developers.

Casual prototyping of short original tracks for consumers; Lyria 3 Pro for full compositions with vocals inside apps, for developers.

No vocals in free MusicFX or Lyria RealTime — vocals are limited to Lyria 3/3 Pro. Blocks prompts naming specific artists. Requires 18+ and is geo-gated to roughly 110 countries.

Free with a Google account, but the exact daily generation cap is unpublished — Google's FAQ only confirms a limit exists. All outputs carry an inaudible SynthID watermark.

Google trains on prompts/outputs by default ("legitimate interest"); users can opt out via disabling "labs.google/fx history" per tool — once disabled, data isn't used for training but is still retained up to 72 hours to run the service.