OPINIONATED INDEX
LITIGATION & ARBITRATION
WORLDWIDE
The world’s highest-stakes legal disputes
The biggest litigations and arbitrations on the planet — who is fighting whom, where, for how much, and what just happened. Curated by a disputes lawyer, monitored continuously.
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DISPUTES TRACKED
50
AGGREGATE IN DISPUTE
$669.6B
JURISDICTIONS
27
LAST UPDATED
2026-08-05 12:31 UTC
| # | DISPUTE | TYPE | FORUM | COUNSELS | AMOUNT | STATUS | LIKELY OUTCOME?Outcome forecasts are generated by AI from each case’s record on this site. How predictions are made → | UPDATED |
|---|---|---|---|---|---|---|---|---|
| 1 | NYT v. OpenAI (Copyright MDL) Newspapers say ChatGPT was built on their copyrighted articles. | Mass Tort | S.D.N.Y. | Susman Godfrey LLP | Billions | Active | Settlement (65%) | JUL 9, 2026 |
| 2 | Authors Guild v. OpenAI Novelists say OpenAI trained its models on pirated books. | Mass Tort | S.D.N.Y. | Lieff Cabraser Heimann & BernsteinSusman Godfrey LLP | Billions | Active | Settlement (72%) | JAN 5, 2026 |
| 3 | Musk v. OpenAI Musk’s fight over OpenAI abandoning its nonprofit mission. | Litigation | N.D. Cal. | Toberoff & AssociatesMoloLamken LLP | ~$150B | On Appeal | Respondent win (72%) | MAY 18, 2026 |
| 4 | Apple v. OpenAI Apple says OpenAI stole trade secrets for its device. | Litigation | N.D. Cal. | Weil, Gotshal & Manges | Injunctive | Active | Settlement (56%) | JUL 14, 2026 |
| 5 | Getty Images v. Stability AI Getty’s landmark UK claim over AI image training. | Litigation | High Court of England & Wales | Weil, Gotshal & MangesMorrison & Foerster | Undisclosed | On Appeal | Settlement (45%) | APR 23, 2026 |
| 6 | Disney & Universal v. Midjourney Hollywood studios sue Midjourney over AI-generated characters. | Litigation | C.D. Cal. | Jenner & BlockCooley | Statutory | Active | Settlement (64%) | JUN 29, 2026 |
| 7 | Labels v. Suno Record labels sue AI music generators over their catalogs. | Litigation | D. Mass. | Hueston HenniganLatham & Watkins | ~$9B | Active | Settlement (73%) | JUN 30, 2026 |
| 8 | Concord v. Anthropic Music publishers say Claude was trained on their lyrics. | Litigation | N.D. Cal. | Oppenheim + ZebrakWilmer Cutler Pickering Hale and Dorr | ~$3B | Active | Settlement (72%) | JUL 15, 2026 |
| 9 | Amazon v. Perplexity (Agentic AI) Can an AI shopping agent log into your Amazon account for you | Litigation | N.D. California, on appeal to the Ninth Circuit | Hueston Hennigan LLPQuinn Emanuel Urquhart & Sullivan, LLP | Injunctive | Active | — | AUG 4, 2026 |
| 10 | US v. Google (Search) Google illegally monopolized search, and now fights over remedies. | Regulatory | D.D.C. | U.S. Department of Justice, Antitrust DivisionWilliams & Connolly | Structural | On Appeal | Claimant win (52%) | JUL 28, 2026 |
| 11 | US v. Google (Ad Tech) Google illegally monopolized ad tech and may be broken up. | Regulatory | E.D. Va. | U.S. Department of Justice, Antitrust DivisionFreshfields Bruckhaus Deringer | Structural | Active | Claimant win (57%) | NOV 21, 2025 |
| 12 | FTC v. Meta FTC’s bid to unwind Instagram and WhatsApp failed. | Regulatory | U.S. Court of Appeals, D.C. Circuit | U.S. Federal Trade CommissionKellogg, Hansen, Todd, Figel & Frederick | Structural | On Appeal | Respondent win (80%) | MAY 22, 2026 |
| 13 | FTC v. Amazon FTC says Amazon illegally protects its marketplace monopoly. | Regulatory | W.D. Wash. | U.S. Federal Trade CommissionWilliams & Connolly | Structural | Active | Split outcome (35%) | DEC 2025 |
| 14 | US v. Apple (Smartphones) DOJ says Apple’s ecosystem locks in a smartphone monopoly. | Regulatory | D.N.J. | U.S. Department of Justice, Antitrust DivisionGibson, Dunn & Crutcher | Structural | Active | Respondent win (35%) | MAY 2026 |
| 15 | Epic v. Apple Epic’s App Store fight forced open iOS payments. | Litigation | N.D. Cal. | Cravath, Swaine & MooreGibson, Dunn & Crutcher | Structural | On Appeal | Split outcome (52%) | JUL 6, 2026 |
| 16 | Epic v. Google Fortnite maker’s antitrust fight forces Google to open the Play Store | Litigation | U.S. District Court for the Northern District of California / Ninth Circuit | Cravath, Swaine & Moore LLPWiggin and Dana LLP | Structural remedy | Enforcement | Claimant win (88%) | JUL 15, 2026 |
| 17 | Google v. EC (Ad Tech) Google fights a €2.95B EU ad-tech fine and breakup. | Regulatory | EU General Court | European Commission | €2.95B | On Appeal | Respondent win (55%) | JUN 2026 |
| 18 | Apple v. EC (DMA) Apple fights the EU’s Digital Markets Act enforcement. | Regulatory | EU General Court | Freshfields Bruckhaus DeringerEuropean Commission | €500M | On Appeal | Respondent win (55%) | JUL 8, 2026 |
| 19 | Roundup Litigation (Bayer/Monsanto) Tens of thousands say Roundup weedkiller caused their cancer. | Mass Tort | N.D. Cal. and US state courts | VariousMultiple firms incl. Bartlit Beck, Wilkinson Stekloff | > $18B | Active | Settlement (70%) | JUN 25, 2026 |
| 20 | J&J Talc MDL Claims J&J’s talc baby powder causes ovarian cancer. | Mass Tort | D.N.J. | Beasley AllenAshcraft & Gerel | ~$9B | Active | Settlement (68%) | JUL 2026 |
| 21 | Social Media Addiction MDL Families say social platforms deliberately addict and harm minors. | Mass Tort | N.D. Cal. | Seeger WeissLieff Cabraser Heimann & Bernstein | Tens of bn | Active | Settlement (64%) | JUN 30, 2026 |
| 22 | Camp Lejeune Water Litigation Largest mass tort over toxic Camp Lejeune water. | Mass Tort | E.D.N.C. | Bell Legal GroupU.S. Department of Justice, Civil Division | $20B+ | Active | Settlement (57%) | JUN 15, 2026 |
| 23 | AFFF / PFAS MDL $14B in settlements over PFAS ‘forever chemicals’ in firefighting foam. | Mass Tort | D.S.C. | Douglas & LondonNapoli Shkolnik | $14B+ | Active | Settlement (76%) | JUN 17, 2026 |
| 24 | Uber Sexual Assault MDL Passengers say Uber failed to prevent driver assaults. | Mass Tort | N.D. Cal. | Lieff Cabraser Heimann & BernsteinPeiffer Wolf Carr Kane Conway & Wise | $1B+ | Active | Settlement (65%) | JUL 2026 |
| 25 | Ozempic / GLP-1 MDLs Claims Ozempic and rival GLP-1 drugs caused severe injuries. | Mass Tort | E.D. Pa. | Seeger WeissWagstaff & Cartmell | Open-ended | Active | Respondent win (45%) | JUN 2, 2026 |
| 26 | Yukos v. Russia History’s largest arbitration award, $50B, against Russia. | Investor–State | PCA | Gaillard Banifatemi Shelbaya DisputesWhite & Case | $65B+ | Enforcement | Claimant win (76%) | MAR 2, 2026 |
| 27 | Petersen v. Argentina (YPF) $16B YPF judgment against Argentina, reversed on appeal. | Litigation | S.D.N.Y. | Sullivan & Cromwell | $16.1B | On Appeal | Respondent win (86%) | JUN 17, 2026 |
| 28 | ConocoPhillips v. Venezuela $8.7B award for Venezuela’s oil-project expropriation. | Investor–State | ICSID | Freshfields Bruckhaus DeringerKobre & Kim | $8.7B+ | Enforcement | Claimant win (72%) | NOV 25, 2025 |
| 29 | Devas v. Antrix / India Can an award annulled at home be enforced abroad? | Investor–State | U.S. federal courts | Gibson, Dunn & CrutcherCurtis, Mallet-Prevost, Colt & Mosle | $1.3B+ | Enforcement | Split outcome (55%) | JUL 7, 2026 |
| 30 | Naftogaz v. Russia (Crimea) $5B against Russia for seizing Naftogaz’s Crimean assets. | Investor–State | PCA | Covington & Burling | $5B+ | Enforcement | Claimant win (88%) | JUL 17, 2026 |
| 31 | Mozambique v. Privinvest $2.3B over the bribery behind Mozambique’s ‘tuna bonds’. | Litigation | English High Court | Peters & Peters | ~$2.3B | Enforcement | Claimant win (72%) | MAY 14, 2026 |
| 32 | ExxonMobil v. Netherlands ExxonMobil sues the Netherlands over the Groningen shutdown. | Investor–State | ICSID | Freshfields Bruckhaus DeringerFietta LLP | €3.96B+ | Active | Claimant win (44%) | FEB 4, 2026 |
| 33 | Spain ECT Awards (NextEra/Blasket) Spain owes €1.5B+ on unpaid renewable-energy treaty awards. | Investor–State | D.D.C. | Skadden, Arps, Slate, Meagher & FlomGibson, Dunn & Crutcher | €1.5B+ | Enforcement | Claimant win (62%) | MAY 26, 2026 |
| 34 | FTX Trust v. Binance & CZ FTX’s estate sues Binance to claw back $1.76B. | Litigation | U.S. Bankruptcy Court, District of Delaware | White & CaseBakerHostetler | $1.76B+ | Active | Settlement (57%) | JUL 24, 2026 |
| 35 | US v. Storm (Tornado Cash) Criminal test of publishing Tornado Cash privacy code. | Criminal | S.D.N.Y. | U.S. Attorney’s Office, S.D.N.Y.Waymaker | $1B+ | Active | Split outcome (42%) | APR 24, 2026 |
| 36 | States v. Paramount-Warner Bros. Discovery Merger State of California, State of New York, State of Washington, Ten other U.S. states (Democratic Attorneys General coalition) v. Paramount Skydance Corp., Warner Bros. Discovery, Inc. | Regulatory | U.S. District Court for the Northern District of California | — | $110B deal | Active | Respondent win (62%) | JUL 23, 2026 |
| 37 | Samuels v. Lido DAO Can a DAO’s token backers face partnership liability? | Litigation | N.D. Cal. | Gerstein HarrowFairmark Partners | Class damages | Active | Respondent win (50%) | MAY 15, 2026 |
| 38 | FTX MDL (Promoters & Enablers) FTX customers pursue the enablers behind $11B losses. | Mass Tort | S.D. Fla. | The Moskowitz Law FirmBoies Schiller Flexner | ~$11B losses | Active | Settlement (82%) | MAY 22, 2026 |
| 39 | In re Tether & Bitfinex Class action says Tether printed USDT to pump Bitcoin. | Mass Tort | S.D.N.Y. | Selendy GaySchneider Wallace Cottrell Konecky | Billions | Active | Settlement (45%) | JUL 2, 2026 |
| 40 | Smartmatic v. Fox Smartmatic’s $2.7B defamation suit over Fox election coverage. | Litigation | N.Y. Supreme Court, New York County — Commercial Division | Benesch, Friedlander, Coplan & AronoffMintz & Gold | $2.7B | Active | Settlement (62%) | MAY 7, 2026 |
| 41 | WhatsApp v. NSO Group WhatsApp beat NSO’s Pegasus spyware, and the injunction threatens NSO. | Litigation | N.D. Cal. | Davis Polk & WardwellKing & Spalding | $167M | On Appeal | Claimant win (65%) | JUN 8, 2026 |
| 42 | Trump v. NYT / Dow Jones A sitting president’s record defamation suits against newspapers. | Litigation | M.D. Fla. & S.D. Fla. | Brito PLLCWilliams & Connolly | $25B | Active | Respondent win (68%) | MAY 28, 2026 |
| 43 | UK Motor Finance Redress £7.5B UK redress over hidden car-loan commissions. | Regulatory | UK Supreme Court | Slaughter and MayEversheds Sutherland | £7.5B | Active | Claimant win (55%) | JUL 2, 2026 |
| 44 | Uniper v. Gazprom €13B against Gazprom for gas it never delivered. | Arbitration | Ad hoc arbitration | Quinn Emanuel Urquhart & Sullivan | €13B+ award | Enforcement | Claimant win (62%) | JAN 12, 2026 |
| 45 | Naftogaz v. Gazprom (Transit) $1.37B against Gazprom for unpaid gas-transit fees. | Arbitration | ICC | Wikborg Rein | $1.37B award | Enforcement | Split outcome (55%) | JUL 9, 2026 |
| 46 | LNG Offtakers v. Venture Global LNG buyers say Venture Global withheld contracted cargoes. | Arbitration | ICC and LCIA commercial arbitrations | — | $6B+ | Active | Split outcome (52%) | MAR 26, 2026 |
| 47 | Aircraft Lessors v. Insurers (Russia) Jet lessors sue insurers over planes stranded in Russia. | Litigation | English Commercial Court | Herbert Smith Freehills Kramer LLPClifford Chance LLP | ~$4.5B | On Appeal | Claimant win (45%) | MAR 2026 |
| 48 | Mariana Dam v. BHP England’s largest-ever claim over Brazil’s Mariana dam collapse. | Mass Tort | English High Court | Pogust GoodheadHerbert Smith Freehills Kramer LLP | £36B | Active | Settlement (68%) | MAY 6, 2026 |
| 49 | Learning Resources v. Trump (IEEPA Tariffs) Learning Resources, Inc., V.O.S. Selections, Inc., Group of importers and states v. Donald J. Trump, United States | Regulatory | Supreme Court of the United States | — | Billions in tariffs | Enforcement | Claimant win (78%) | JUL 1, 2026 |
| 50 | Elsevier et al. v. Meta (Publisher AI Training) Elsevier Inc., Cengage Learning, Inc., Hachette Book Group, Inc., Macmillan Publishers, McGraw Hill LLC, Scott Turow v. Meta Platforms, Inc., Mark Zuckerberg | Litigation | Southern District of New York | — | Unspecified statutory damages | Active | Settlement (58%) | MAY 20, 2026 |
PREVIOUSLY IN THE INDEX 3
Cases that ran their course — decided, settled, or concluded. Unranked, most recently concluded first.
| # | DISPUTE | TYPE | FORUM | COUNSELS | AMOUNT | STATUS | UPDATED |
|---|---|---|---|---|---|---|---|
| — | US v. Adani Bribery case against Adani the DOJ now wants dropped. | Criminal | E.D.N.Y. | U.S. Attorney’s Office, E.D.N.Y.Kirkland & Ellis | $50B+ | Concluded | JUL 15, 2026 |
| — | Purdue / Sackler Settlement Purdue’s $7.4B opioid settlement and Sackler releases take effect. | Mass Tort | U.S. Bankruptcy Court, S.D.N.Y. | Davis Polk & Wardwell | $7.4B | Settled | MAY 1, 2026 |
| — | Fannie/Freddie Shareholders v. FHFA Shareholders win $812M over the Fannie–Freddie profit sweep. | Litigation | D.D.C. | Boies Schiller FlexnerKessler Topaz Meltzer & Check | $812M | Decided | JUL 24, 2026 |
METHODOLOGY
How disputes are selected
TopDisputes is a curated index, not a ranking. Candidate cases and updates are surfaced by automated research and reviewed by a practicing disputes lawyer. Nothing is published without approval. Inclusion reflects an editorial judgment about significance, not a score.
- Stakes
- The amounts, the precedent, or the parties involved carry consequences well beyond the individual case.
- Public sources
- Entries are compiled from court filings, published decisions, arbitral awards, and reputable reporting. No confidential information is used.
- Current relevance
- The index favors active or recently active matters and is monitored continuously for developments.
- Editorial judgment
- Where candidate cases are comparable, preference goes to the matter with the broader legal or commercial significance.
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