Suno AI v4.5 in Detail: A Comprehensive Look at the Musical AI Update
Juli 3
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Welcome, dear music enthusiasts and AI curious, to an exciting insight into the latest evolution of music creation! Today, we dive deep into the world of Suno AI and illuminate the highly anticipated version 4.5. Suno AI has established itself as a pioneer in generating music using artificial intelligence, enabling everyone to create unique songs – from complete instrumental pieces to complex compositions with vocals.
With the release of Suno AI v4.5, a groundbreaking update made accessible to Pro and Premier users at the end of May 2024 (Editor's Note: It was actually released on May 1st) and now available to everyone, we are experiencing a new era of musical design. But what exactly is behind this new version? What innovations does it bring, and what challenges does it face?
In this post, Suno AI takes its users on a journey that makes creating music not only more accessible but also more diverse and dynamic. We will detail the most important new features, the technical refinements, and the impact on the music landscape. Join us as we explore Suno AI v4.5 in all its facets and find out if it has the potential to fundamentally change the way we create and experience music.
Ready for the future of music production? Let's get started!
🎶 Suno AI v4.5: Overview and Key Features
At the beginning of May 2025, Suno unveiled an impressive upgrade for its music AI with the release of version v4.5. This update, initially available to Pro and Premier users, significantly expands creative possibilities but also brings with it some much-discussed changes.
Here are the most important new features in detail:
🚀 Doubled Song Length: The maximum length of a song generated without the "Extend" function has been doubled from 4 to an impressive 8 minutes. This opens up entirely new possibilities for more complex song structures and longer pieces.
🎧 Expanded Genre Variety: v4.5 boasts a repertoire of over 1,200 music styles. Particularly, the ability to create niche genres or creative genre fusions (mashups) has noticeably improved. The AI now implements prompt specifications even more precisely.
🎤 More Expressive Vocals: The quality and flexibility of the generated voices have been optimized. From whispered passages to powerful singing – the emotional depth and dynamic range of the vocals have increased.
⚡ Significantly Faster Generation: Song creation has been noticeably accelerated with v4.5. Reports indicate that generation time could be reduced by up to 50%.
📊 Direct Comparison: Suno v4.0 vs. v4.5
The following table shows the crucial differences between the two versions:
🤔 Light and Shadow: A Word on Audio Quality
Probably the most controversial point of the v4.5 update is the audio quality. While Suno officially speaks of a "richer and more balanced mix," many users report a noticeable loss of quality compared to v4.0. Commonly cited criticisms include a "dull," "muddy," or "underwater-sounding" sound.
This discrepancy suggests that Suno v4.5 has prioritized complexity and "creative output," possibly at the expense of final audio clarity.
⚙️ Technical Innovations and Product Improvements in v4.5
With version v4.5, Suno AI has made an impressive leap forward, bringing a range of powerful new features and improvements that significantly expand the creative potential for musicians and creators.
Key upgrades at a glance:
🎵 Doubled Song Length: The biggest highlight is likely the ability to directly generate songs up to 8 minutes in length. This was previously only possible through manual extensions (Extend function) and now opens the door for more complex and complete compositions in a single pass.
🧠 Expanded Genre Variety & Prompt Accuracy: The AI now understands over 1,200 different music styles and can implement them more precisely. Especially the fusion of different genres (mashups) is significantly better. Prompts with detailed and complex instructions regarding mood and nuances are now interpreted more accurately.
🎤 Improved Vocal Performance: Vocal expressiveness has received a significant upgrade. The AI can now cover a wider emotional palette – from soft whispering to powerful singing, which adds more depth and dynamics to the tracks.
⚡️ Significantly Faster Generation: Waiting time has been noticeably reduced. Reports indicate that song generation in v4.5 is up to 50% faster than in the previous version, significantly accelerating the creative workflow.
✨ New "Prompt Enhancement Helper": For all who are looking for inspiration: This new helper converts simple ideas automatically into detailed and expressive prompts to get the best out of the AI.
🎛️ Deeper Control: The New Remix Sliders
A special highlight for advanced users is the introduction of remix sliders, which allow precise control over the creative process:
Weirdness: Controls how experimental or "safe" the AI should interpret the song.
Style Influence: Determines how strongly the remix adheres to the new style specifications in the prompt.
Audio Influence: Specifies how close the new track should remain to the original audio structure.
These sliders allow specific elements like vocals to be retained while the instrumental is completely re-arranged – a powerful tool for creative remixes.
🤔 A Critical Look: The Debate on Audio Quality
While the functional improvements are celebrated, there is a lively discussion in the community about the audio quality of v4.5.
Official Statement: Suno claims to deliver a "richer and more balanced mix."
User Feedback: Many users perceive the quality as a step backward compared to v4, describing the sound as "dull," "muddy," or "underwater."
This discrepancy suggests that the more complex song structure (up to 12 tracks) may pose a challenge for the internal, automatic mixing. It's a compromise between expanded functionality and sonic polish, which Suno will certainly continue to work on.
🎤 User Feedback, Audio Specification, and Controversies of v4.5
The release of v4.5 has generated a lot of discussion in the Suno community. Reactions were very mixed, revealing both impressive progress and significant points of criticism.
The Divided Echo of the Community: Praise and Blame
User feedback on v4.5 is polarizing. While some users are thrilled with the new creative possibilities, others mourn the sound quality of v4.0.
👍 Positive Feedback:
Increased Creativity: Many users praised the ability to now implement even niche and complex music genres precisely. The detailed prompt processing was described as "breathtaking."
Improved Vocals: In particular, the clarity of vocal tracks when using the cover function was perceived as a clear improvement.
Higher Speed: Generation time has reportedly been significantly shortened, in some cases by up to 50%.
👎 Negative Feedback:
Generic Sound: Some users find the generated songs emotionally flatter and "more generic" compared to the previous version v4.
Unbalanced Mix: A common criticism is that vocals often get lost in the mix and are hard to understand.
Genre Inconsistency: For certain styles, such as 80s music, v4.0 is said to have delivered better and more authentic results.
🔊 The Great Debate: Audio Quality
By far the biggest point of contention is audio quality. Although Suno officially speaks of a "richer and more balanced mix," the perception of many users differs.
Main Criticism: The majority of critical voices complain about a perceived deterioration in sound quality. Terms such as "dull," "muddy," or "as if recorded underwater" are constantly recurring in discussions.
Possible Cause: Experts suspect a compromise: v4.5 can generate more complex song structures with more tracks (up to 12), but the internal automatic mixing does not yet seem to be fully capable of handling this complexity. This could lead to the unbalanced sound.
⚖️ Legal Controversies: The Copyright Lawsuit
Shortly after the release of v4.5, a controversy became public that goes far beyond technical specifications.
The RIAA Lawsuit: In June 2024, the Recording Industry Association of America (RIAA), on behalf of major labels such as Sony Music and Universal Music, filed a lawsuit against Suno for massive copyright infringement.
The Accusation: Suno allegedly trained its AI models with vast amounts of copyrighted songs without possessing the necessary licenses.
Suno's Defense: The company argues that the training falls under the "Fair Use" doctrine, similar to how a human artist learns and is inspired by listening to other music.
This lawsuit casts a shadow over the commercial use of AI-generated music and creates a legal gray area that is relevant to all users.
Licensing Models and Commercial Use 🎵⚖️
Suno offers various plans tailored to different needs – from the occasional hobbyist to the professional content creator. The main distinction lies in the permission for commercial use. Here is a clear overview of the models:
The Golden Rule of Commercial Use
The commercial exploitation of your creations is a central topic. Please note the following crucial points:
Subscription Required: To commercially use music generated with Suno (e.g., on YouTube, Spotify, in advertisements, or as background music for products), you need an active Pro or Premier subscription.
Rights apply per song: Usage rights are tied to the plan that was active at the time the song was created. Songs you created under the free Basic Plan may not be used commercially even after a later upgrade.
No Transfer of Ownership: You receive the usage rights, but Suno retains ownership of the compositions.
This clear distinction ensures that both hobby users and professional users find the appropriate framework for their projects. For more details on the terms of use, we recommend taking a look at the official Suno guidelines.
⚖️ Legal Aspects and Copyright Lawsuits against Suno AI
Suno AI's impressive technology inevitably raises important legal questions, especially in the area of copyright. As a user, it is crucial to understand the current situation and the associated risks.
The Lawsuit by the Music Industry (RIAA)
In June 2024, a crucial turning point occurred: The Recording Industry Association of America (RIAA) filed a comprehensive lawsuit against Suno and its competitor Udio on behalf of major music labels such as Sony Music and Universal Music Group.
The Accusation 📜: The core of the lawsuit is that Suno trained its AI models by unauthorizedly copying and analyzing a massive amount of copyrighted songs. The RIAA considers this to be large-scale copyright infringement.
Suno's Defense 🤔: Suno, on the other hand, argues that this process falls under the doctrine of "Fair Use." They compare the AI training to the learning process of a human musician who listens to countless songs to develop their own style – a "transformative" process that does not violate copyright.
Gray Area and Risks for Users ⚠️
This lawsuit illustrates the legal gray area in which generative AI models currently operate. The court's decision could have far-reaching consequences for the entire industry.
For you as a user, this means:
Commercial Use: Especially when commercially publishing songs generated with Suno, there is a residual risk. It cannot be completely ruled out that your creations may unintentionally resemble copyrighted material.
Legal Uncertainty: As long as no final judgments have been made, commercial use remains subject to some uncertainty. It is advisable to closely follow developments and carefully observe Suno's terms of use.
🥊 Suno AI vs. Udio: The Great Showdown of Music Generators
In the market for AI music generators, there's another giant seriously competing with Suno: Udio. Developed by former Google DeepMind engineers, Udio has quickly established itself as a powerful alternative. But how do the two stack up in direct comparison?
🎵 Audio Quality and Realism
Both platforms deliver impressively high-quality results, but there are subtle differences that can be crucial depending on the application.
Udio: Is often praised for its exceptionally realistic reproduction of vocals and instruments. Many users find tracks generated by Udio to be more organic and "human."
Suno AI: Also impresses with high quality but has particular strengths in specific genres like J-Pop, where it is often considered a benchmark. The v4.5 version aims to further increase genre diversity and complexity.
🎤 Linguistic Capabilities and Pronunciation
For songs with vocals, the quality of text generation and pronunciation is a crucial factor.
Suno AI: Has earned a reputation for its excellent and natural handling of Japanese lyrics. Pronunciation is often remarkably precise, which is a big advantage for non-English songs.
Udio: Also supports multiple languages but is often perceived as slightly less natural in pronunciation in direct comparison, especially with more complex languages.
⚖️ Licenses and Commercial Use (Free Plan)
Here lies one of the biggest and most important differences for creatives and businesses:
Suno AI: Commercial use of generated songs is exclusively reserved for paying users (Pro & Premier Plan). The free Basic Plan does not allow commercial use.
Udio: Allows commercial use even in the free plan. This is a huge advantage for anyone who wants to create music for projects without initial investment.
🏆 Conclusion: Which tool is right for you?
The choice between Suno AI and Udio largely depends on your individual priorities:
Choose Suno AI if... * ...you particularly value precise implementation in certain genres (e.g., J-Pop) or specific languages. * ...you are already familiar with Suno's workflow and appreciate the features of Custom Mode. * ...you are willing to subscribe to a plan for commercial use.
Choose Udio if... * ...maximum realism in vocals and instruments is your highest priority. * ...you want to use music commercially but don't want to spend money initially. * ...you are looking for a somewhat "more organic" or "livelier" sound.
Both tools are being sued within the framework of the RIAA lawsuit due to possible copyright infringements during AI training. Users should be aware of this legal "gray area", especially with commercial publications.
We hope this detailed insight into Suno AI v4.5 has helped you better understand the innovations and potential impacts of this fascinating technology. Suno AI is at the forefront of AI-driven music creation and will undoubtedly continue to push the boundaries of what is possible.
Stay tuned for more updates and exciting developments from the world of artificial intelligence and music! Remember that the world of AI music is evolving rapidly. It's worth following Suno AI's official channels and keeping up to date with the latest developments and legal frameworks:
Official Suno AI Website: https://suno.ai/
Suno AI Blog/News: (Check the official page regularly for current announcements)
Legal Notices/Terms of Use: (You can find the latest terms and conditions and license information directly on the Suno website)
Thank you for joining us on this musical journey of discovery. Until next time and continue to enjoy creating your own melodies with Suno AI!
Sources
https://denshikuzira.com/category/v4-5/
https://yanai-ke.com/suno-ai/
https://denshikuzira.com/category/v4-5/
https://yanai-ke.com/suno-ai/
https://jackrighteous.com/en-us/blogs/guides-using-suno-ai-music-creation/suno-remix-sliders-guide-v4-5
https://yanai-ke.com/suno-ai/
https://yanai-ke.com/suno-ai/
https://yanai-ke.com/suno-ai/
https://yanai-ke.com/suno-ai/
