A classic creation model for short songs and instrumental drafts
chirp-v3-5 is the music creation invocation model for Suno V3.5 on this platform, suitable for turning brief themes, lyrics, and style concepts into songs or instrumental music you can preview. It offers both inspiration and custom creation modes, making it suitable for short music drafts, event songs, and application prototypes. The key to choosing it is defining the creative content and previewing the musical direction, rather than pursuing long-form arrangements or the fine editing controls of newer versions.
Input parameters and result formats vary by service. Use the public API for this model and follow its guide for generation, task retrieval and editing operations.
Specifications and interface features
Clarify capacity, inputs and outputs, and invocation methods before choosing a model.
Creation modes
Inspiration mode prompt; custom mode lyric, style, title
Inspiration description limit
500 characters
Custom text limits
Lyrics 3000 characters; style 200 characters; title 80 characters
Song duration range
The platform model guide lists a maximum of 120 seconds
Music types
Vocal songs; instrumental music can be selected in inspiration mode
Audio and results
MP3; JSON returns information such as audio URL, song status, and actual duration
Invocation method
POST /suno/audios;model=chirp-v3-5;supports asynchronous tasks and callbacks
The above text and duration range are listed according to this platform's V3.5 usage guide and do not constitute Suno native specifications or a guarantee of exact final duration.
Core Capabilities
Learn what chirp-v3-5 can bring to your work.
Start Creating Directly from a Theme
Inspiration mode is suitable for creators who do not yet have complete lyrics. Write the theme, musical mood, and desired genre into the prompt, and start generation with custom=false; add instrumental=true when background music is needed. First establish a direction with a concise description, then adjust the content based on listening results, avoiding too many requirements at the start.
Turn Existing Lyrics into a Song
Custom mode organizes lyrics, style, and title separately, making it easier to create around existing copy. After setting custom=true, submit lyric; you can use section markers such as verse and chorus to organize the structure; style focuses on describing genre, instruments, and mood. For V3.5, short and clear style descriptions make it easier to express key points within the text limit.
Deliver Manageable Music Results
A music generation result is more than just a file: the application can save the song ID, title, lyrics, and actual duration, and retrieve audio through audio_url. Asynchronous calls first obtain task_id, then track completion status, or use callback_url to receive results. This workflow is suitable for placing creation, listening, and asset archiving in the same application.
Use Cases
Start from specific tasks to find where the model can be effective.
Event and Holiday Song Drafts
Enter the event theme, audience, and the emotion you want to convey, then use inspiration mode to get a song direction; when you already have greeting copy, organize it into verses and choruses for custom generation. The deliverable is a listenable song draft, making it easier for the team to judge whether the lyric expression and musical atmosphere suit the event, rather than directly promising final release quality.
Short-Video Soundtrack Direction Exploration
Describe music around the rhythm and mood of the video visuals, such as upbeat, warm, or tense, and select instrumental music in inspiration mode. After generation, listen to how the melody fits the visuals, then trim and edit it. It is suitable for finding background music directions for short-form content; precise synchronization between the finished piece and shots should still be completed in subsequent editing.
Music Creation App Prototypes
Connect a theme input field, lyrics editing area, and style selector to the song generation workflow, and users can move from text to listening. The application saves task_id and the song ID, then displays the audio and creation information after completion. V3.5 is suitable for validating basic creation interactions; the interface should be designed around its text range and should not assume that all advanced music operations are available by default.
How to Choose This Model
Choose based on task complexity, input materials, and expected results.
V3.5 Is Available for Short Tasks
If the goal is a basic song draft, short accompaniment, or maintenance of an existing V3.5 application, you can continue to choose chirp-v3-5. Its input organization is relatively straightforward, making it suitable for first validating themes and lyrics. Compared with chirp-v4, both have the same limits for lyrics and style, but V4 has a longer duration range in the usage guide; consider V4 when longer sections are needed.
Choose Later Versions for Long Lyrics and Vocal Preferences
When lyrics are longer, style descriptions are more complex, or male/female vocal preference control is needed, V4.5 is more suitable for comparison: it allows longer lyric and style text and provides vocal gender preferences. Do not apply these controls directly to V3.5. When extensive arrangement or deep editing is needed, choose based on the creative capabilities of the corresponding model rather than simply changing the name.
Getting Started: Turn Short Lyrics into Comparison Drafts
Arrange the input first, then connect it to the corresponding application workflow.
Prepare Input
Prepare verses and choruses whose length meets the model's limits, and provide a concise style and title.
Organize the Call and Follow-up Workflow
Explicitly select chirp-v3-5. Use prompt for theme creation; for custom creation, organize lyric, style, and title according to the model's limits. Save task_id, retrieve audio_url after waiting for completion, and archive it together with the work ID and creation settings.
Practical Task Example: Turn Short Lyrics into Comparison Drafts
Design the task directly from the following inputs and acceptance priorities.
Suggested Task
Submit lyric, style, and title with custom=true, keep the lyrics unchanged, and change only the style description once to compare two drafts.
Key Checks
Check whether any lyrics were omitted, whether the sections are clear, and whether the work can be played in full; use the result as the basis for duration, and do not infer audio quality from text limits.
Usage Limits
Before official use, understand the output quality and capability scope.
V3.5 is suitable for short-form creation; do not plan long songs based on the maximum value of the shared duration parameter. The expected duration is guidance, not a hard requirement to trim or pad; for actual delivery, read the duration in the result and listen to whether the ending is complete, adjusting the length in an audio editing tool if necessary.
Lyrics, style, and title each have their own character limits, and lyric length does not equal the amount of content that can be sung. For longer copy, it is recommended to first condense repeated sections and clarify the verse-chorus structure; for style descriptions, prioritize the core genre and mood, and avoid adding conflicting requirements within limited space.
Do not rely on V3.5's vocal_gender to specify male or female vocals; this control applies to V4.5 and above. Operations such as Persona, remastering, stem separation, or clip replacement also should not be considered capabilities of this model based solely on shared parameters; basic generation applications should design advanced workflows separately from song creation.
Frequently Asked Questions
Answers to common questions when using chirp-v3-5.
What version is chirp-v3-5?
It corresponds to Suno V3.5, a publicly callable model for music creation. It is not a standard speech synthesis model, nor is it another name for V4.5 or V6. When calling it, explicitly set model=chirp-v3-5; it is suitable for basic songs, instrumental drafts, and existing-version workflows.
Can songs be generated without lyrics?
You can use inspiration mode: set custom=false and describe the song's theme, mood, and genre in prompt, with a description limit of 500 characters. You do not need to prepare complete lyrics first; if you want to use your own lyrics, switch to custom=true and submit lyric, style, and title.
How do I generate instrumental music with V3.5?
In inspiration mode, set instrumental=true and use prompt to describe the intended use of the soundtrack, mood, and instrumental direction. This is suitable for exploring background music for videos or events. Choosing instrumental music and precisely controlling duration are different issues; you still need to listen after generation and arrange editing based on the actual duration.
Can I specify a female voice or generate a six-minute song?
You should not plan V3.5 tasks this way. Male/female vocal preference parameters apply to V4.5 and above; the V3.5 usage guide specifies a maximum song duration of 120 seconds. Even if the interface accepts an expected duration, it does not mean this model will generate six-minute audio; for long songs, choose a more suitable version.
How do I obtain the music file after making a call?
Submit a generation request to /suno/audios, then read the song status and audio_url from data after completion. Setting async=true lets you obtain task_id first and then query the task result; you can also configure callback_url. It is recommended to save the song ID and actual duration and download the audio for later listening and archiving.