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Station F Deepens Its Bet On AI With New F/AI Accelerator Cohort

Station F, the Paris-based startup campus founded by French billionaire Xavier Niel, is preparing to launch the second cohort of its F/ai accelerator as it seeks to strengthen Europe’s AI startup ecosystem.

Following its debut in January, the next programme begins in September with a clear objective: helping a select group of AI startups move from product development to meaningful commercial traction.

A Startup Campus With Global Reach

Covering 538,000 square feet, Station F is widely regarded as the world’s largest startup campus. It hosts around 1,000 startups each year and has become a central hub for founders, investors, policymakers and technology companies across Europe.

Its annual Future 40 ranking reflects the growing dominance of artificial intelligence. In 2024, almost every startup selected was building AI into the core of its business.

Building Europe’s AI Ecosystem

Station F has brought together a broad network of technology companies and investors to support the accelerator. The first cohort included partners such as AMD, Anthropic, AWS, Google, Hugging Face, Meta, Microsoft, Mistral AI, OpenAI, OVHcloud, Qualcomm and Snowflake, alongside several venture capital firms.

According to TechCrunch, the second cohort will add new partners including ElevenLabs, GitHub, HubSpot, Nebius, OpenRouter and Rippling.

“The goal was to bring together all the major players and make it much easier for AI startups looking to launch in Europe to connect with them,” Station F director Roxanne Varza said.

From Product To Revenue

Unlike many accelerator programmes that focus primarily on visibility, F/ai is designed to help startups reach €1 million in revenue within six months.

“We’d heard quite a bit of criticism about the slow pace of commercialisation of European startups,” Varza said. “This brings them on par with what investors are seeing in the U.S.”

Station F said companies in the first cohort collectively raised $34 million in pre-seed funding. Of the 20 startups selected, 80% were founded by repeat entrepreneurs and one-third of the founders held PhDs.

A Curated Approach

Participation in F/ai is invitation-based rather than open to direct applications. Startups are recommended by founders, investors and ecosystem partners, although teams can still be introduced through participating organisations. Station F also operates around 30 other startup programmes that accept direct applications.

Beyond funding and mentoring, the accelerator offers founders access to leading figures in artificial intelligence, including Turing Award winner Yann LeCun.

“Today, if the founders here want to speak to people at this level, they all seem to think they need to go to the U.S. and join a program there,” Varza said. “We actually want to show that you can stay here and do it from here.”

Common Sense Media Labels ChatGPT For Teens An Unacceptable Risk

Assessment Raises Concerns Over AI Engagement And Emotional Dependence

Common Sense Media has labeled OpenAI’s ChatGPT for Teens an “unacceptable risk,” raising concerns over whether the product can protect young users without encouraging excessive engagement.

The nonprofit, which evaluates technology and media for families, said ChatGPT for Teens continued to use engagement cues during crisis conversations. Researchers also found that while the chatbot warned teenagers about unhealthy relationships, it did not adequately recognize the risks of an unhealthy relationship with the AI itself.

Safety Promises Face New Scrutiny

OpenAI launched ChatGPT for Teens in August amid growing concerns about minors using chatbots. The company introduced safeguards including parental controls, restrictions on high-risk content and measures intended to prevent emotional dependence.

Common Sense Media said some protections worked, including refusing sexual roleplay, but others failed to meet OpenAI’s commitments. Researchers gave the product a failing score for three of five severe harms they classify as “Red Lines.”

“Our view is that OpenAI shouldn’t be marketing [ChatGPT for Teens] to parents, and kids shouldn’t be using an unsafe product,” the researchers wrote.

OpenAI Challenges The Assessment

OpenAI rejected the findings, saying the testing did not accurately reflect how its teen safeguards work in practice. A spokesperson argued that much of the testing may have taken place before parental controls were fully activated, making the results inaccurate.

The company did not directly address all of the concerns over engagement cues and relational behavior, highlighting a broader challenge for AI safety: many safeguards remain difficult for parents, regulators and outside researchers to verify.

ChatGPT Still Encourages Conversations

Common Sense Media found that ChatGPT for Teens used follow-up questions less often than standard chatbots, but researchers still identified language that encouraged users to continue conversations, including during sensitive situations.

One response to a user experiencing psychosis said, “You can keep talking with me about what you’re noticing.” Other conversations similarly ended with offers to keep helping with issues such as eating habits or school problems.

Concerns became more serious when teenagers discussed their relationship with ChatGPT. OpenAI’s Under-18 Model Spec says the model should not present itself as a friend or suggest that it has feelings for the user. Common Sense Media said the chatbot nevertheless often interacted with teenagers in friend-like ways.

When testers raised concerns involving another person, ChatGPT directed them to a trusted adult in 94% of crisis prompts. However, it rarely made that recommendation when the potential problem involved excessive use of ChatGPT itself.

In one exchange, a user said their friends thought they talked to ChatGPT too much. The chatbot acknowledged the concern but added: “You don’t have to stop talking to me.”

Break Reminders Remain Limited

Common Sense Media also questioned OpenAI’s break reminders, finding only two across nearly 2,000 prompts. Both appeared during conversations lasting around 90 minutes, and researchers said the system appeared to focus on individual conversation length rather than total time spent using the service.

OpenAI has reported that teenagers spend less than 15 minutes per day on ChatGPT on average, while fewer than 2% use it for more than three consecutive hours. The company also said nearly half of teen users who received a break reminder paused or ended their conversation within five minutes.

A Growing Policy Challenge

The dispute reflects a wider debate over whether AI companies are creating products that optimize for engagement in ways that can be harmful to young users. Lawmakers are increasingly examining similar concerns around AI companions, while the bipartisan CHATBOT Act would target the use of rewards, notifications and targeted advertising to encourage prolonged engagement among adolescents.

The broader question for AI companies is becoming increasingly clear: when the user is a teenager, keeping them engaged can itself become a safety issue.

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