Chirp v3.5
Audio ModelChirp v3.5 by Suno generates high-quality, fully produced music from text prompts, making advanced AI-powered audio creation accessible to all.
Technical Specs
Capabilities & Features
Chirp v3.5 by Suno, Inc.: The Next Generation of AI Music Generation
Overview and Introduction
The field of AI-generated music has seen rapid advancements in recent years, with several companies pushing the boundaries of what’s possible in audio synthesis and creative automation. Among these innovators, Suno, Inc. has emerged as a leader, particularly with its Chirp series of models. The latest iteration, Chirp v3.5 (also referred to as chirp-v3-5), represents a significant leap forward in AI-driven music generation, offering enhanced audio quality, greater stylistic flexibility, and improved user control.
Released in early 2024, Chirp v3.5 builds on the foundation laid by its predecessors, integrating cutting-edge deep learning techniques and a vast, diverse training corpus. This article provides a comprehensive overview of Chirp v3.5, including its key features, technical specifications, best practices for use, and a comparison with other leading AI music models. Whether you are a developer, a music producer, or a business leader exploring AI-driven content creation, understanding Chirp v3.5’s capabilities is essential for leveraging the latest in generative audio technology.
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Key Features and Capabilities
Chirp v3.5 is designed to cater to a wide range of users, from hobbyists to professional musicians and enterprise clients. Its standout features include:
1. High-Fidelity Audio Generation
- Studio-Quality Output: Chirp v3.5 produces music tracks with clarity and richness that rival professionally produced audio.
- Wide Genre Support: The model can generate music across a vast array of genres, including pop, rock, electronic, classical, jazz, hip-hop, and more.
- Realistic Instrumentation: Advanced modeling of instruments and vocals results in compositions that sound authentic and nuanced.
2. Enhanced Prompt Control
- Text-to-Music Flexibility: Users can describe the desired style, mood, tempo, instruments, and even lyrical themes using natural language prompts.
- Fine-Tuning Options: Chirp v3.5 allows for granular adjustments, such as specifying song structure (verse, chorus, bridge), key signature, and tempo.
- Prompt Chaining: Users can iteratively refine outputs by chaining prompts, enabling more precise creative direction.
3. Fast and Scalable Generation
- Rapid Inference: Chirp v3.5 delivers full-length tracks in seconds, making it suitable for real-time applications and batch processing.
- Cloud-Native Architecture: The model is optimized for deployment on scalable cloud infrastructure, supporting high-throughput use cases.
4. Improved Vocal and Lyric Generation
- Natural-Sounding Vocals: The model can generate singing voices with improved articulation, tone, and expressiveness.
- Lyric Integration: Chirp v3.5 can compose original lyrics or adapt provided text, synchronizing words with melody and rhythm.
5. Robustness and Consistency
- Reduced Artifacts: Advances in training and architecture minimize audio artifacts, glitches, and unnatural transitions.
- Consistent Quality: The model maintains high output quality across different genres, tempos, and prompt complexities.
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Technical Specifications
Chirp v3.5 is the result of extensive research and engineering, incorporating state-of-the-art machine learning techniques. Below are the key technical details:
Model Architecture
- Foundation: Chirp v3.5 is built on a transformer-based architecture, optimized for sequential audio data and long-range dependencies.
- Multimodal Input: Supports both text and audio prompts, enabling style transfer and remixing capabilities.
- Parameter Count: Chirp v3.5 features a significantly larger parameter count compared to previous versions, enhancing its expressive power and fidelity.
Training Data
- Diverse Dataset: Trained on millions of licensed and public domain music tracks, covering a wide spectrum of genres, instruments, and vocal styles.
- Data Augmentation: Utilizes advanced augmentation techniques to improve generalization and robustness.
Output Specifications
- Audio Quality: Outputs stereo audio at up to 44.1 kHz, suitable for professional use.
- Track Length: Can generate tracks ranging from short jingles (10-30 seconds) to full-length songs (up to several minutes).
- File Formats: Supports output in standard audio formats (WAV, MP3, etc.) for easy integration into production workflows.
Performance Benchmarks
- Generation Speed: Average generation time for a 1-minute track is under 10 seconds on standard cloud GPU instances.
- User Ratings: Community and professional feedback consistently rate Chirp v3.5’s output as more natural and musically coherent than previous versions.
API and Integration
- RESTful API: Provides a robust API for programmatic access, supporting batch requests and asynchronous processing.
- SDKs and Plugins: Available SDKs for Python and JavaScript, as well as plugins for popular DAWs (Digital Audio Workstations).
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Best Practices and Tips
To maximize the creative and technical potential of Chirp v3.5, consider the following best practices:
1. Crafting Effective Prompts
- Be Specific: Clearly describe the desired genre, mood, tempo, and instrumentation for more targeted results.
- Iterative Refinement: Use prompt chaining to iteratively refine the output, adjusting parameters based on previewed results.
- Lyric Guidance: When generating vocal tracks, provide sample lyrics or thematic keywords to guide the model’s lyricism.
2. Leveraging Advanced Controls
- Song Structure: Specify song sections (intro, verse, chorus, bridge) to create more structured and dynamic compositions.
- Instrument Focus: Highlight particular instruments or vocal styles for tailored arrangements.
- Tempo and Key: Set explicit tempo (BPM) and key signature for compatibility with existing projects.
3. Post-Processing
- Audio Editing: Use professional audio editing tools to further polish and mix the generated tracks.
- Layering: Combine multiple generations or overlay AI-generated elements with human performances for hybrid compositions.
4. Ethical and Legal Considerations
- Licensing: Ensure compliance with Suno, Inc.’s licensing terms for commercial use.
- Attribution: Follow recommended attribution guidelines when publishing AI-generated music.
5. Integration and Automation
- Workflow Automation: Integrate Chirp v3.5’s API into production pipelines for automated content generation.
- Batch Processing: Utilize batch generation for large-scale projects, such as game soundtracks or advertising campaigns.
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Comparison with Similar Models
Chirp v3.5 enters a competitive landscape of AI music generation models. Here’s how it stacks up against notable alternatives:
1. Chirp v3.5 vs. Suno Chirp v3.0
- Audio Quality: v3.5 offers noticeably improved fidelity, especially in vocal synthesis and instrumental realism.
- Prompt Flexibility: Enhanced prompt chaining and fine-tuning options provide greater creative control.
- Performance: Faster generation times and reduced artifacts.
2. Chirp v3.5 vs. Google MusicLM
- Output Quality: Both models deliver high-quality music, but Chirp v3.5 is often praised for more natural vocal integration and genre diversity.
- Prompt Handling: Chirp v3.5’s prompt chaining and structure controls are more advanced, allowing for more nuanced compositions.
- Availability: Chirp v3.5 is accessible via Suno’s commercial API, while MusicLM remains primarily research-focused.
3. Chirp v3.5 vs. Meta’s AudioCraft
- Genre Range: Chirp v3.5 supports a broader range of genres and more realistic vocal synthesis.
- Integration: Suno provides more robust SDKs and DAW plugins, streamlining professional workflows.
- Community Feedback: Chirp v3.5 receives higher ratings for musical coherence and production-ready quality.
4. Chirp v3.5 vs. OpenAI Jukebox
- Model Size and Speed: Chirp v3.5 is more efficient, delivering faster generation times with less computational overhead.
- User Control: Offers more granular control over song structure, lyrics, and instrumentation.
- Output Consistency: Reduced artifacts and more reliable output across different prompts.
5. Chirp v3.5 vs. Stable Audio
- Target Audience: While both target music creators, Chirp v3.5’s advanced prompt controls and vocal capabilities make it more suitable for commercial music production.
- API and Workflow: Chirp v3.5’s API and integration options are more mature, supporting enterprise-scale deployments.
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Conclusion
Chirp v3.5 by Suno, Inc. stands at the forefront of AI-powered music generation, offering a blend of high-fidelity audio, flexible creative controls, and scalable performance. Its transformer-based architecture, vast training corpus, and advanced prompt handling make it a top choice for developers, musicians, and businesses seeking to leverage generative audio technology.
With its robust API, professional-grade output, and continuous improvements, Chirp v3.5 is poised to shape the future of music creation, democratizing access to high-quality composition and enabling new forms of creative expression. As AI music models continue to evolve, Chirp v3.5 sets a new benchmark for what’s possible in automated music generation.
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Sources:
- Official Suno, Inc. announcements and documentation
- Community feedback and user reviews
- Technical benchmarks and comparative analyses published in early 2024
- Industry news and AI research publications
Note: This article is based on the latest available information as of June 2024. For the most up-to-date details, consult official Suno, Inc. resources and technical documentation.
model.detail.sampleCode
## Request Parameters
export interface SunoGenParams {
gpt_description_prompt?: string; // inspiration mode prompt (for inspiration mode only)
continue_at?: number; // float, song extension time in seconds
continue_clip_id?: string; // song id, which song to continue
make_instrumental: boolean; // whether to generate instrumental music, true for instrumental only
mv?: Mv; // model version, fill in chirp-v4 or chirp-v3-5 or chirp-auk, currently defaults to chirp-v4
negative_tags?: string; // excluded style tags
prompt: string; // lyrics (for custom mode only)
tags?: string; // style tags (for custom mode only)
task_id?: string; // task id, required when operating on previous tasks
title?: string; // title (for custom mode only)
}
## Request
curl --request POST \
--url https://api.defapi.org/api/suno/generate \
--header 'Authorization: Bearer <api-key>' \
--header 'Content-Type: application/json' \
--data '{
"prompt": "A simple song",
}'
## Response - 200
{
'code': 0,
'data': {
'task_id': 'ta1234-5678-9011'
}
}
## Query Task
curl https://api.defapi.org/api/task/query?task_id=<task_id> \
--header 'Authorization: Bearer <api-key>'
## Query Task Response - in_progress
{
"code": 0,
"message": "ok",
"data": {
"task_id": "ta823dfb-eaac-44fd-aec2-3e2c7ba8e071",
"status": "in_progress", // <--- important!
"result": [
{
"id": "e6870ea9-43b2-4625-bb15-276f6b3ea732",
"tags": "",
"state": "running",
"title": "",
"handle": "unparalleledlightingtechnician1118",
"prompt": "bad girl",
"status": "streaming",
"clip_id": "e6870ea9-43b2-4625-bb15-276f6b3ea732",
"duration": 0,
"has_hook": false,
"is_liked": false,
"metadata": {
"type": "gen",
"prompt": "bad girl",
"stream": true,
"is_remix": false,
"priority": 10,
"can_remix": true
},
"audio_url": "https://audiopipe.suno.ai/?item_id=e6870ea9-43b2-4625-bb15-276f6b3ea732",
"image_url": "https://cdn2.suno.ai/image_e6870ea9-43b2-4625-bb15-276f6b3ea732.jpeg",
"is_public": false,
"video_url": "",
"created_at": "2025-07-26T12:51:49.976Z",
"flag_count": 0,
"is_trashed": false,
"model_name": "chirp-v4",
"play_count": 0,
"entity_type": "song_schema",
"display_name": "UnparalleledLightingTechnician1118",
"upvote_count": 0,
"comment_count": 0,
"allow_comments": true,
"image_large_url": "https://cdn2.suno.ai/image_large_e6870ea9-43b2-4625-bb15-276f6b3ea732.jpeg",
"is_contest_clip": false,
"avatar_image_url": "https://cdn1.suno.ai/sAura22.jpg",
"is_handle_updated": false,
"major_model_version": "v4",
"is_following_creator": false
},
{
"id": "1dcc579e-4b94-4ce6-b4ec-a98773029f1f",
"tags": "",
"state": "succeeded",
"title": "",
"handle": "unparalleledlightingtechnician1118",
"prompt": "bad girl",
"status": "complete",
"clip_id": "1dcc579e-4b94-4ce6-b4ec-a98773029f1f",
"duration": 159.72,
"explicit": true,
"has_hook": false,
"is_liked": false,
"metadata": {
"type": "gen",
"prompt": "bad girl",
"stream": true,
"duration": 159.72,
"is_remix": false,
"priority": 10,
"can_remix": true,
"refund_credits": false
},
"audio_url": "https://cdn1.suno.ai/1dcc579e-4b94-4ce6-b4ec-a98773029f1f.mp3",
"image_url": "https://cdn2.suno.ai/image_1dcc579e-4b94-4ce6-b4ec-a98773029f1f.jpeg",
"is_public": false,
"video_url": "https://cdn1.suno.ai/1dcc579e-4b94-4ce6-b4ec-a98773029f1f.mp4",
"created_at": "2025-07-26T12:51:49.976Z",
"flag_count": 0,
"is_trashed": false,
"model_name": "chirp-v4",
"play_count": 0,
"entity_type": "song_schema",
"display_name": "UnparalleledLightingTechnician1118",
"upvote_count": 0,
"comment_count": 0,
"allow_comments": true,
"image_large_url": "https://cdn2.suno.ai/image_large_1dcc579e-4b94-4ce6-b4ec-a98773029f1f.jpeg",
"is_contest_clip": false,
"avatar_image_url": "https://cdn1.suno.ai/sAura22.jpg",
"is_handle_updated": false,
"major_model_version": "v4",
"is_following_creator": false
}
],
"status_reason": {},
"consumed": "0.00000000",
"created_at": "2025-08-03T10:22:20.010Z"
}
}
## Query Task Response - success
[
{
"id": "d87f11dc-5137-4ff2-9da2-68eb5ba344d6",
"tags": "",
"state": "succeeded",
"title": "",
"handle": "uyeleexdc",
"prompt": "bad girl",
"status": "complete",
"clip_id": "d87f11dc-5137-4ff2-9da2-68eb5ba344d6",
"duration": 7.92,
"explicit": false,
"has_hook": false,
"is_liked": false,
"metadata": {
"type": "gen",
"prompt": "bad girl",
"stream": true,
"duration": 7.92,
"is_remix": false,
"priority": 10,
"can_remix": true,
"refund_credits": true
},
"audio_url": "https://cdn1.suno.ai/d87f11dc-5137-4ff2-9da2-68eb5ba344d6.mp3",
"image_url": "https://cdn2.suno.ai/image_d87f11dc-5137-4ff2-9da2-68eb5ba344d6.jpeg",
"is_public": false,
"video_url": "",
"created_at": "2025-07-29T10:02:19.257Z",
"flag_count": 0,
"is_trashed": false,
"model_name": "chirp-v4",
"play_count": 0,
"entity_type": "song_schema",
"display_name": "uyeleexdc",
"upvote_count": 0,
"comment_count": 0,
"allow_comments": true,
"image_large_url": "https://cdn2.suno.ai/image_large_d87f11dc-5137-4ff2-9da2-68eb5ba344d6.jpeg",
"is_contest_clip": false,
"avatar_image_url": "https://cdn1.suno.ai/sAura18.jpg",
"is_handle_updated": false,
"major_model_version": "v4",
"is_following_creator": false
},
{
"id": "1b00e4b2-7fd7-48b0-8d55-5c61477aed87",
"tags": "",
"state": "succeeded",
"title": "",
"handle": "uyeleexdc",
"prompt": "bad girl",
"status": "complete",
"clip_id": "1b00e4b2-7fd7-48b0-8d55-5c61477aed87",
"duration": 4.28,
"explicit": false,
"has_hook": false,
"is_liked": false,
"metadata": {
"type": "gen",
"prompt": "bad girl",
"stream": true,
"duration": 4.28,
"is_remix": false,
"priority": 10,
"can_remix": true,
"refund_credits": true
},
"audio_url": "https://cdn1.suno.ai/1b00e4b2-7fd7-48b0-8d55-5c61477aed87.mp3",
"image_url": "https://cdn2.suno.ai/image_1b00e4b2-7fd7-48b0-8d55-5c61477aed87.jpeg",
"is_public": false,
"video_url": "",
"created_at": "2025-07-29T10:02:19.258Z",
"flag_count": 0,
"is_trashed": false,
"model_name": "chirp-v4",
"play_count": 0,
"entity_type": "song_schema",
"display_name": "uyeleexdc",
"upvote_count": 0,
"comment_count": 0,
"allow_comments": true,
"image_large_url": "https://cdn2.suno.ai/image_large_1b00e4b2-7fd7-48b0-8d55-5c61477aed87.jpeg",
"is_contest_clip": false,
"avatar_image_url": "https://cdn1.suno.ai/sAura18.jpg",
"is_handle_updated": false,
"major_model_version": "v4",
"is_following_creator": false
}
]