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Success story 1
Success story 1
Research paper 1
Research paper 2
Gretchen AI Wins Cybersecurity Pitch at VivaTech 2025
Daniel Röder shared our vision for using AI against disinformation — and Gretchen AI won first place in the cybersecurity pitch!
Advancing to Phase 2 of the SPRIND Funken Challenge
Gretchen AI selected among top teams developing real-time deepfake detection technology
by Yassine El Kheir
BiCrossMamba-ST:
Speech Deepfake Detection with Bidirectional Mamba Spectro-Temporal Cross-Attention.
AI can mimic voices from minutes of audio.
BiCrossMamba-ST by Gretchen’s Team member Yassine El Kheir beats top deepfake detectors with fewer parameters and up to 67.7% higher accuracy.
Generalizable Audio Spoofing Detection using Non-Semantic Representations
Deepfake audio detectors often fail in real-world use. Arnab Das’ team used non-semantic audio features that capture voice traits and emotion but ignore speech content.
SPRIND Backs Gretchen AI in Deepfake Detection & Prevention Drive
SPRIND’s Deepfake Detection and Prevention program seeks quick, impactful ideas. Gretchen AI, a DFKI spin-off, and dpa are partnering to help newsrooms tackle AI challenges.
Gretchen AI featured in #ai_berlin blog!
We are thrilled to be featured in the #ai_berlin blog! Fighting deepfakes and disinformation requires precision, efficiency, and the right AI tools. At Gretchen AI, we develop intelligent agents that automate fact-checking where it matters most. Thanks to hashtag #ai_berlin for this special spotlight on our work!
From the lab to the street
Gretchen AI founders Daniel Röder, Arnab Das, and Dr. Tim Polzehl bring their many years of expertise as researchers at the DFKI Lab Berlin to the company. As part of news-polygraph, Germany’s largest research project on media content verification, they collaborate with renowned public broadcasters as project partners.
Gretchen AI is among the nominees for Innovationspreis Berlin Brandenburg
It’s an exciting time for Gretchen AI! Our efforts in combating disinformation and advancing AI transparency are gaining recognition across the innovation landscape. Each nomination and award inspires us to push boundaries and continue shaping the future of responsible AI.
What’s New at Gretchen AI
Our latest updates are here! We’ve refined our dashboard with improved analysis tools, smarter project organization, and clearer explanations – all designed to make your investigation smoother.
During our recent webinar, we gave a live demo of these new capabilities, highlighting how Gretchen AI detects manipulations and tracks image origins with precision.