StepAudio 3

StepAudio 3

StepFun
+
+

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About

MUSICTOOL is a browser-based AI music creation and audio workspace for musicians, songwriters, producers, content creators, and people learning to work with audio. Users can generate vocal or instrumental songs from a written idea or their own lyrics, draft and revise lyrics, continue a track, replace a passage, and blend songs. The workspace also provides AI-assisted stem separation, audio-to-MIDI conversion, sheet-music recognition, and other music workflows. Browser tools include audio trimming, pitch and speed adjustment, tempo and key detection, a MIDI editor, metronome, and instrument tuner. Users can listen to generated songs and share them in the service; paid credit packs or subscriptions unlock audio downloads, while subscriptions include a commercial license. The product runs in a web browser and includes free credits for trying song creation.

About

StepAudio 3 is StepFun’s next-generation audio model family, built to understand, generate, and interact through voice, sound, and music. The lineup includes StepAudio 3 Realtime for natural full-duplex conversation, StepAudio 3 ASR for speech recognition, StepAudio 3 TTS for speech synthesis, StepAudio 3 Gen for general-purpose audio generation, and StepAudio 3 Music for long-form music creation. Realtime is designed around a continuous listen-converse-think-act loop, understanding not only words but also hesitation, laughter, emotion, pauses, backchannels, and interruptions. It can think while speaking, reason through harder questions without breaking conversational flow, and use tools to complete tasks once it understands the user’s intent. StepAudio 3 Gen unifies zero-shot TTS, voice design, vocal generation, sound effects, music, and mixed audio generation within one framework, while StepAudio 3 Music supports text-controlled songs, instrumentals, vocal arrangement, and more.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Musicians, songwriters, music producers, content creators, and audio learners

Audience

Developers, AI teams, and creators needing to build real-time voice agents, speech applications, transcription systems, and generative audio or music experiences

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

Free credits, paid plans
Free access includes 20 signup credits, daily check-in credits, listening and sharing, and 2 GB storage; audio downloads are not included. Credit packs start at $4.99 one-time for 100 credits and do not expire; packs do not include a commercial license. Subscriptions start at $9.99 per month for 400 credits, downloads, 25 GB storage, and a commercial license. Taxes may apply.
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

MUSICTOOL
Founded: 2026
China
musictool.tools

Company Information

StepFun
United States
static.stepfun.com/blog/stepaudio3/

Alternatives

No Alternatives

Alternatives

Seed-Music

Seed-Music

ByteDance
Fugatto

Fugatto

NVIDIA

Categories

Categories

AI Models Supported

Integrations

No info available.

Integrations

No info available.
Claim MUSICTOOL and update features and information
Claim MUSICTOOL and update features and information
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Claim StepAudio 3 and update features and information