Reservoir has expanded its copyright lawsuits against Suno and Anthropic, adding more than 600 songs to the two cases.
Amended complaints filed in both cases on Wednesday (November 11) raise the combined number of compositions at issue from 1,903 to 2,511.
The complaint against Suno now lists 1,368 works, up from 1,050 when Reservoir first sued the two AI companies in the US District Court for the Northern District of California on October 21.
The complaint against Anthropic now lists 1,143 works, up from 853.
In each case, Reservoir says it owns 100% of, or exclusively controls, the US copyrights in the works listed.
Reservoir is seeking actual damages and the defendants’ profits or, alternatively, statutory damages of up to USD $150,000 per work willfully infringed.
The amended complaints put those statutory totals at $205.2 million against Suno and $171.45 million against Anthropic.
Two further counts under the Digital Millennium Copyright Act, over the alleged circumvention of access controls and removal of copyright management information, carry stated totals of $3.42 million and $34.2 million against Suno, and $2.86 million and $28.58 million against Anthropic.
Across the three counts, the figures pleaded now come to just over $242.8 million against Suno and almost $202.9 million against Anthropic – a combined total of just over $445.7 million.
When the suits were filed in October, the combined figure was just under $337.8 million.
Reservoir Founder and CEO Golnar Khosrowshahi said in a statement to MBW at the time: “As AI continues to reshape the music landscape, its innovative technology must not be built on the exploitation of intellectual property in ways that violate the rights of creators.
“Reservoir’s business is rooted in our responsibility to protect the rights and creative legacies of our songwriters, artists, estates, and partners, and when we believe their work has been exploited without authorization, we will hold AI platforms legally accountable to ensure those rights are upheld. We will continue to advocate for a framework that supports technological progress while protecting the creative work at the heart of our industry.”
The amended Suno complaint also introduces two new exhibits.
According to the filing, Exhibits B and C provide 34 “recorded examples of Suno outputs directly infringing the Works”, in folders hosted on Vimeo.
The complaint highlights Exhibit B-1, a Suno output it links to Evanescence‘s Bring Me to Life, describing it as “reprising specific vocal melody from underlying song”.
Reservoir says the output runs “contrary to Suno’s statements” in a motion to dismiss that the company filed in a separate case.
Suno filed that motion on November 3, asking a federal court in Boston to throw out the proposed right-of-publicity class action brought against it by Jason Isbell and three other musicians.
In its supporting memorandum, Suno stated that “by design and in practice, Suno outputs do not ‘sample’ snippets of pre-existing music; they do not reprise specific melodies from songs someone else wrote”.
“These are just examples,” the amended Reservoir complaint states. “In light of these examples, and those described and attached to other cases against Suno, as well as the other facts discussed below, Suno undoubtedly violated all of the exclusive rights of Reservoir under the United States Copyright Act with respect to the Works, including but not limited to creating infringing output with respect to all of the Works.”
The amended filing also alleges, “on information and belief”, that Suno has “taken steps that prevent rights holders from discovering the true extent of the infringing outputs”.
According to the complaint, it did so by “quietly removing lyric search” less than a year after the feature launched, and “only weeks after news broke” that Suno’s ReMi lyrics model could be made to “generate ‘full song’ lyrics”.
The complaint also quotes what it says was a since-deleted post on X by C.C. Gong, a former principal at Menlo Ventures, which the filing calls Suno’s lead investor.
“I’ve personally shifted most of my listening to Suno,” the post reads, according to the Reservoir complaint. “I was so tired of Spotify giving me the same overplayed recommendations.”
The Suno filing further cites a joint statement issued by ASCAP, BMI, and SOCAN in October 2025, in which the three performing rights organizations said that training AI models on copyrighted musical works without permission, compensation, or credit “is not fair use, but theft”.
Beyond the added works and revised damages figures, the amended Anthropic complaint is largely unchanged from the original.
An Anthropic spokesperson told Billboard in October: “We disagree with the allegations and intend to defend this case vigorously.”
The complaint alleges that Claude Haiku 4.5 and Sonnet 5 say they cannot reproduce song lyrics due to copyright restrictions, but “have no problem creating derivative works based upon those copyrighted lyrics”.
It quotes what it says was a response from Claude Sonnet 5 after the model was prompted to rewrite certain songs for “a modern audience”: “These renders keep landing very close to the originals: same structure, same hooks reused with light rewording, and full sets of verses/choruses/bridges. That’s edging past ‘inspired by’ into reproducing the copyrighted song, even when the words are swapped out.”
The same response appeared in the lawsuit Round Hill Music filed against Anthropic on August 17, which Reservoir‘s complaint cites.
Round Hill and Reservoir are both represented by Richard S. Busch of Adams & Reese, with Skaggs Faucette LLP as local counsel.
Busch, who won the Blurred Lines case for Marvin Gaye‘s family, also represents Regional Mexican label Gerencia 360 in its lawsuit against Suno.
When Round Hill sued, it attached exhibits of 500 compositions to each complaint and said it planned to amend both cases to cover “potentially ten thousand or more” works. Its amended complaint against Suno, filed on October 19, lists 3,271.
Anthropic is also defending music copyright lawsuits brought by Concord, Universal Music Publishing Group, and ABKCO; by BMG; and by Sony Music Publishing and Warner Chappell Music.
Universal Music Group and Sony Music Entertainment filed a second lawsuit against Suno on September 18, while Warner Music Group settled with Suno in November 2025.
BMG and Believe have since struck licensing deals with Suno, which launched its v6 models on September 9.Music Business Worldwide