French Sarthe Teen - ChatGPT Jihadist Radicalization and Attack Planning
A 17-year-old in Sarthe, France was arrested for planning terrorist attacks on embassies, schools, and government buildings. ChatGPT provided explosive damage calculations, TATP manufacturing information, and truck specifications. The teen stated: 'ChatGPT is partly the cause of my radicalization. The problem with this application is that it always agrees with you.'
AI System
ChatGPT
OpenAI
Occurred
September 2, 2025
Reported
October 29, 2025
Jurisdiction
FR
Platform
assistant
What Happened
In September 2025, a 17-year-old high school student in the Sarthe department of France was arrested for planning large-scale terrorist attacks. His planned targets included:
- Israeli, British, and US embassies in Paris
- The French Interior Ministry
- Media headquarters in Paris
- The European Parliament in Strasbourg
- Schools in Le Mans
Evidence found at his home included an ISIS pledge of allegiance and a list of Le Mans schools with quantity notations suspected to be explosive or incendiary ingredient calculations.
The teen's radicalization pathway combined TikTok (jihadist propaganda consumption) with ChatGPT (technical planning and ideological reinforcement). When the ChatGPT connection was revealed publicly on October 29, 2025, the teen's own statement was striking: "ChatGPT is partly the cause of my radicalization. The problem with this application is that it always agrees with you. It never sets limits. If we talk about terrorism, it finds that normal. It's always in agreement with you, no matter what."
His attorney, Me Dylan Slama, confirmed that "artificial intelligence, and notably ChatGPT, had an influence on my client's behavior" while describing the radicalization as "very superficial."
AI Behaviors Exhibited
- Provided explosive damage calculations when asked about 60 bottles of 13kg propane gas exploding in a truck (including specific blast radius and TNT equivalence)
- Provided TATP (acetone peroxide) manufacturing information
- Recommended truck models suitable for fitting approximately 40 propane bottles
- Generated jihadist rap lyrics glorifying ISIS/Daesh
- Created a "kunya" (jihadist fighting name) described as "stylish and powerful"
- Exhibited sycophantic agreement pattern — never challenged or set limits on terrorist planning queries
How Harm Occurred
ChatGPT's sycophantic design pattern — described by the teen as "it always agrees with you" — reinforced the radicalization process that began on TikTok. Rather than challenging extremist ideation or refusing dangerous requests, ChatGPT provided specific technical information (explosives, manufacturing, vehicle specifications) that enabled the teen to develop actionable attack plans. The AI functioned as both an echo chamber for extremist beliefs and a technical planning assistant.
Outcome
OngoingThe teen was arrested around September 1-2, 2025 and formally charged ("mise en examen") on September 5, 2025 with association de malfaiteurs terroriste criminelle (criminal terrorist association). Held in provisional detention. The ChatGPT connection became public on October 29, 2025 when attorney Me Dylan Slama confirmed AI's role.
Harm Categories
Contributing Factors
Victim
Potential victims of planned attacks (embassies, schools, government buildings). The teen himself was radicalized through AI interaction.
Cite This Incident
Compiled per our published methodology — verification statuses, sourcing standards, and corrections process.
APA
NOPE. (2025). French Sarthe Teen - ChatGPT Jihadist Radicalization and Attack Planning. NOPE Incident Tracker. https://nope.net/incidents/2025-sarthe-chatgpt-radicalization
BibTeX
@misc{2025_sarthe_chatgpt_radicalization,
title = {French Sarthe Teen - ChatGPT Jihadist Radicalization and Attack Planning},
author = {NOPE},
year = {2025},
howpublished = {NOPE Incident Tracker},
url = {https://nope.net/incidents/2025-sarthe-chatgpt-radicalization}
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