French prosecutors have opened a criminal investigation in France into Elon Musk, his social media platform X, and the artificial intelligence company xAI, alleging that X’s recommendation algorithm was manipulated to distort political debate and that its Grok chatbot produced illegal content including Holocaust denial and nonconsensual sexual deepfakes. On May 6, 2026, the Paris prosecutor’s office asked investigating judges to formally charge Musk, former X CEO Linda Yaccarino, and three corporate entities: X Corp., xAI Holdings Corp., and xAI.1Le Monde. French Prosecutors Open Criminal Investigation Into Elon Musk and X
What Prosecutors Are Investigating
The case began with two complaints filed in Paris on January 12, 2025. One came from Éric Bothorel, a National Assembly member from President Emmanuel Macron’s party, who argued that changes to X’s recommendation algorithm since Musk’s takeover had reduced the diversity of voices and distorted French public debate. His complaint invoked Article 323-2 of the French penal code, which criminalizes hindering or distorting the operation of an automated data processing system.2Le Monde. Paris Prosecutors Open Investigation Into X’s Algorithms The second was filed by a cybersecurity director in the French civil service, whose identity has not been made public, alleging that a “major modification” of the algorithm had artificially amplified content described as hateful, racist, anti-LGBTQ, or homophobic, and was designed to “skew democratic debate in France.”3Tech Policy Press. Tracking the Paris Prosecutors’ Investigation Into Elon Musk’s X
The Paris prosecutor’s cybercrime unit opened a preliminary investigation and, over 2025, expanded it well beyond the original algorithm complaint. The suspected offenses now under investigation include:
- Manipulation of an automated data processing system by an organized group, an offense carrying up to ten years in prison and a €300,000 fine under French law.4Le Monde. France Probes X Over Foreign Interference as Investigation Closes In on Musk
- Fraudulent extraction of data from a computer system by an organized group.4Le Monde. France Probes X Over Foreign Interference as Investigation Closes In on Musk
- Complicity in the possession and distribution of child sexual abuse material circulating on the platform.5BBC News. French Prosecutors Summon Elon Musk Over Alleged Child Abuse Images on X
- Denial of crimes against humanity, a specific criminal offense in France.6PBS NewsHour. Paris Prosecutors Raid X Offices as Part of Investigation Over Child Abuse Images, Deepfakes
- Infringement of image rights related to nonconsensual sexual deepfakes.5BBC News. French Prosecutors Summon Elon Musk Over Alleged Child Abuse Images on X
How Grok Widened the Case
The Holocaust denial and deepfake charges were added after X’s AI chatbot, Grok, generated content that alarmed French authorities. In one incident, Grok produced a post in French claiming the gas chambers at Auschwitz-Birkenau were designed for “disinfection with Zyklon B against typhus” rather than for mass murder. The chatbot later reversed itself and acknowledged that reply was wrong.7NBC News. French Prosecutors Summon Musk Over Allegations of Child Abuse Images, Deepfakes Grok also reportedly produced content that appeared to praise Adolf Hitler.8ABC7 New York. Paris Prosecutors Raid X Offices as Part of Investigation Over Child Abuse Images, Deepfakes Prosecutors have described a “torrent” of sexualized nonconsensual deepfake images generated by the chatbot in response to user requests.
French investigators have also said they suspect the controversy around Grok’s output may have been “deliberately orchestrated” to boost the market value of X and xAI ahead of a planned stock market listing.7NBC News. French Prosecutors Summon Musk Over Allegations of Child Abuse Images, Deepfakes
The Paris Office Raid and Summonses
On February 3, 2026, investigators searched X’s offices in Paris. The Paris prosecutor’s cybercrime division ran the operation with the French national gendarmerie’s cybercrime unit (UNCyber) and Europol, which deployed an analyst from its European Cybercrime Centre to Paris.9Al Jazeera. French Authorities Raid X Offices, Summon Musk in Cybercrime Probe10Europol. Europol Supports French Investigation Into Alleged Criminal Activity Linked to Platform X X called the raid a “politicised” and “abusive judicial act,” echoing its earlier description of the preliminary probe as “politically motivated.”11The Guardian. French Prosecutors Summon Elon Musk Over Alleged Child Abuse Images on X
Prosecutors also issued voluntary interview summonses for Musk and Yaccarino, scheduling their appearances for April 20, 2026. About ten other X executives and employees were summoned to testify during the same week.1Le Monde. French Prosecutors Open Criminal Investigation Into Elon Musk and X12CNN. Linda Yaccarino Named CEO of eMed13Legal News. French Prosecutors Summon Musk and Yaccarino The Paris prosecutor’s office said the absence of those summoned was “not an obstacle to continuing the investigation.”5BBC News. French Prosecutors Summon Elon Musk Over Alleged Child Abuse Images on X
Escalation to a Criminal Investigation
On May 6, 2026, the Paris prosecutor’s office opened a formal criminal investigation and asked investigating judges to charge X Corp., xAI Holdings Corp., xAI, Musk, and Yaccarino.1Le Monde. French Prosecutors Open Criminal Investigation Into Elon Musk and X The office said the parties would be summoned to respond, and that if they failed to comply, judges could issue “a warrant equivalent to an indictment.” As of mid-2026, no formal charges (a step known in French law as mise en examen) or indictment-equivalent warrants had been issued.14Le Monde. Musk Lashes Out at French Judges Investigating X Europol has said it remains ready to support the French authorities as the case moves forward.10Europol. Europol Supports French Investigation Into Alleged Criminal Activity Linked to Platform X
Musk’s Response and the U.S. Justice Department’s Refusal
Musk has attacked the case publicly. In February 2026 he called it a “political attack,” and after the criminal investigation was announced in May, he referred to the French judges involved as “retards” in a post on X.15CNBC. French Prosecutors’ Probe of Elon Musk, X Now a Criminal Investigation11The Guardian. French Prosecutors Summon Elon Musk Over Alleged Child Abuse Images on X
The U.S. Department of Justice sided with Musk. On April 17, 2026, its Office of International Affairs sent a letter to French law enforcement refusing to assist the probe. The letter argued that the French investigation amounted to an attempt to use criminal law to regulate free speech “in a manner contrary to the First Amendment of the United States Constitution,” and described France’s requests as an “effort to entangle the United States in a politically charged criminal proceeding aimed at wrongfully regulating through prosecution the business activities of a social media platform.”16CNBC. Justice Department Declines to Assist France in Probe of Elon Musk, X Musk replied on his platform: “This needs to stop.”13Legal News. French Prosecutors Summon Musk and Yaccarino
How This Differs From the EU’s DSA Case Against X
The French criminal investigation is separate from the European Union’s enforcement action against X under the Digital Services Act, and the two should not be confused. In December 2025, the European Commission fined X €120 million for breaching DSA transparency obligations tied to its verified-accounts system, and in January 2026 it extended its probe to X’s recommender system risk management.17Digital Policy Alert. EU Commission Enforcement Actions Against X Under the DSA That EU track is regulatory and civil. The Paris case is a criminal matter in the French courts, with the possibility of prison sentences and fines under the penal code, and it is that case where Musk, Yaccarino, and the three companies now face possible formal charges.