Example of a two-minute song generated by Suno AI; its lyrics were generated by ChatGPT. The Style of Music prompt was "Calm, psychedelic rock".
Suno AI, or simply Suno, is a generative artificial intelligencemusic creation program designed to generate realistic songs that combine vocals and instrumentation,[1] or are purely instrumental. Suno has been widely available since December 20, 2023, after the launch of a web application and a partnership with Microsoft, which included Suno as a plugin in Microsoft Copilot.[2]
The program operates by producing songs based on text prompts provided by users. Suno has been sued by the Recording Industry Association of America for copyright infringement, and thousands of musicians have signed a letter demanding that the company cease using copyrighted music in their training data.[3][4][5] Suno does not disclose the dataset used to train its artificial intelligence but claims it has been safeguarded against plagiarism and copyright concerns.[1]
History
Suno was founded by four people: Michael Shulman, Georg Kucsko, Martin Camacho, and Keenan Freyberg. They all worked for Kensho, an AI startup, before starting their own company in Cambridge, Massachusetts.[6]
In April 2023, Suno released their open-source text-to-speech and audio model called "Bark" on GitHub and Hugging Face, under the MIT License.[7][8] On March 21, 2024, Suno released its V3 version for all users.[9] The new version allows users to create a limited number of four-minute songs using a free account.[10] Users can pay to subscribe monthly or annually to unlock more features.[citation needed] In April 2024, a sentimental ballad was generated with Suno based on the text of the MIT License.[11]
On July 1, 2024, a mobile app for Suno was released.[12]
On November 19, 2024, Suno upgraded its AI song model program to v4.[13][14]
In January of 2025, on a podcast Schulman said "I think the majority of people don't enjoy the majority of the time they spend making music."[15][3]
In July 2025, Suno user imoliver signed a record deal with Hallwood Media, which became the first instance of a traditional music label signing an AI-based creator.[16]
Improved song form compared to V3, and extendable by up to 2 mins
Suno V4
November 2024
Active
4 minutes
Improved vocal capabilities and offered features such as Cover, Persona, and Extend features
Suno V4.5
May 2025
Active
8 minutes
Better prompt adherence and smarter style combinations
Covers
This is a Suno feature released on September 12, 2024. Covers are used to reimagine a song in a new style while retaining its melodic tone. It is commonly used for genre-swapping, adding lyrics to an instrumental, [or] trying new styles while keeping the same tune as the original.[18]
Personas
Releasing on October 31, 2024, this feature lets you capture a track's core elements/unique characteristics (vocals, energy, and atmosphere) as a reusable "Persona." The Persona can then be used to create a song with the same vocal style or atmosphere but with different lyrics and style.[19]
Covers with Personas
Released under the v4.5 model, it retains the original tune while swapping in a different voice/vibe and a new genre/production.
Extend
This allows for users to extend the songs far beyond the max generation time of a particular model, particularly with longer lyrics or instrumentals.[20]
Legal issues
In June 2024, a lawsuit, led by the Recording Industry Association of America, was filed against Suno and Udio alleging widespread infringement of copyrighted sound recordings. The lawsuit sought to bar the companies from training on copyrighted music, as well as damages of up to $150,000 per work from infringements that have already taken place.[5][21]
In March 2025, one day after thousands of musicians including Thom Yorke and ABBA's Björn Ulvaeus signed a letter calling for Suno to stop training its model on copyrighted music, Timbaland endorsed SUNO in a video on the company's website.[3][4][22]
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