# Sonauto AI > Sonauto AI is an AI song generator that turns ideas and lyrics into complete songs, with model options and real results creators can compare before choosing a workflow. Key capabilities: - Start from a lyric draft, story idea, theme, mood note, creative brief, or scene description. - Draft verses, hooks, and choruses before moving the strongest lyrics into a complete song workflow. - Generate vocal songs or instrumental music, then extend songs, remove vocals, split stems, or convert supported audio to MIDI. - Start with a free plan; downloads, private generations, and commercial usage depend on the selected paid plan and current license terms. The links below point to the canonical English pages. Refer to the linked pricing and license pages for current limits and usage rights. ## Choosing an input path - Use Simple Mode when the starting point is a story, mood, title, theme, or scene and exact lyric wording is not fixed. - Use Custom Mode when supplied verse, chorus, hook, or full-song lyrics should remain recognizable; keep lyric structure separate from musical direction. - Choose instrumental when the result should have no lead vocal, then describe the track's role, arc, instruments, pace, and ending. - Every generation returns two interpretations of the same input. Compare the hook, phrasing, structure, voice, and arrangement before changing one instruction for the next attempt. ## Product - [Sonauto AI](https://www.sonauto-ai.com): Turn an idea or lyrics into a complete song, compare two generated results, and continue with the version you choose. - [AI Song Examples](https://www.sonauto-ai.com/ai-song-examples): Hear eight real outputs from four inputs, with exact prompts or lyrics, measured A/B differences, and selection notes. - [AI Song Models](https://www.sonauto-ai.com/ai-song-model): Compare the current V5 and V5.5 execution routes by access and documented sound improvements. - [Pricing](https://www.sonauto-ai.com/pricing): Compare the Free Plan, paid generation limits, downloads, privacy, and royalty-free commercial usage rights on eligible annual plans. - [Commercial License](https://www.sonauto-ai.com/commercial-license): Understand when generated music can be used for commercial projects. ## Authoritative facts - Sonauto AI accepts two current model versions for new generations: Model V5 uses the V5 provider route, and Model V5.5 uses the V5.5 provider route. - Free accounts start with 2 one-time Model V5.5 generations and fall back to Model V5 after the trial is used. Monthly and annual paid plans include ongoing V5.5 access. - Model V1, V3, and V4.5 labels remain readable on historical songs but are retired for new generations; derived work from those songs moves to Model V5. - Each music generation returns two song versions for comparison. - The homepage previews four historical paired generations completed on July 30, 2026: three V4.5 requests and one V5 request, with eight playable outputs. Those labels describe the models actually used at the time. - The AI Song Examples page is the canonical source for those cases' exact inputs, measured A/B differences, and selection notes. These examples show variation within one generation and are not a controlled current-model quality test. - The Free Plan includes 2 generations—up to 4 public songs a day—for online streaming after sign-in. - Paid plans provide MP3 and WAV downloads. Current pricing, plan limits, and usage rights are defined by the Pricing, License, and Terms pages listed in this document. - Eligible annual Starter and Plus generations include royalty-free commercial usage rights under the License Agreement. This grant does not apply to Free Plan or monthly-plan results. ## Site identity www.sonauto-ai.com is the canonical home of Sonauto AI. The About Sonauto AI page is the primary source for the site's purpose, product scope, and support information. ## Support Customer support: support@sonauto-ai.com ## Creation Tools - [AI Lyrics Generator](https://www.sonauto-ai.com/ai-lyrics-generator): Draft verses, hooks, and choruses before generating a complete song. - [Extend Song](https://www.sonauto-ai.com/extend-song): Continue and refine a promising generated track. - [Cover Song](https://www.sonauto-ai.com/cover-song): Reimagine an uploaded or generated song with a new vocal or musical direction. - [Audio to MIDI](https://www.sonauto-ai.com/audio-to-midi): Convert supported audio into editable MIDI data. - [Vocal Remover](https://www.sonauto-ai.com/vocal-remover): Separate vocals from the instrumental portion of a track. - [Stem Splitter](https://www.sonauto-ai.com/stem-splitter): Split a track into individual musical stems. ## Optional - [About Sonauto AI](https://www.sonauto-ai.com/about): Learn about the site's purpose and intended users. - [License](https://www.sonauto-ai.com/license): Review the license that applies to generated music. - [Privacy Policy](https://www.sonauto-ai.com/privacy): Review how the site handles personal information. - [Terms of Service](https://www.sonauto-ai.com/terms): Review the terms governing use of the service. - [Refund Policy](https://www.sonauto-ai.com/refund): Review eligibility and conditions for refunds.