{"id":3957,"date":"2025-08-07T22:57:53","date_gmt":"2025-08-07T22:57:53","guid":{"rendered":"https:\/\/gretchen-ai.com\/?page_id=3957"},"modified":"2025-11-25T10:08:20","modified_gmt":"2025-11-25T10:08:20","slug":"blog","status":"publish","type":"page","link":"https:\/\/gretchen-ai.com\/en\/blog\/","title":{"rendered":"Blog"},"content":{"rendered":"\t\t
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Truth Engine<\/span><\/span><\/span><\/span><\/span><\/span><\/h2>
Exploring AI, Ethics & Information Integrity<\/span><\/span><\/span><\/span><\/span><\/span><\/h5>

In a world where synthetic media\u2014deepfakes, AI-generated voices, and manipulated images\u2014are becoming alarmingly convincing, Gretchen AI is pioneering a new kind of digital defense. Our intelligent agents are designed not just to detect manipulation, but to understand context.<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Gretchen AI is among the nominees for Innovationspreis Berlin Brandenburg<\/h5>\n

It\u2019s 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.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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What’s New at Gretchen AI<\/h5>

Our latest updates are here! We\u2019ve 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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Summer Highlights 2025<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/h5>\n

This summer was packed with inspiring events, strong collaborations, and exciting milestones for Gretchen AI. From community engagements to innovation programs, we reflected, learned, and grew together. Here are some of our favorite moments from the season.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Gretchen AI Wins Cybersecurity Pitch at VivaTech 2025<\/h5>

Daniel R\u00f6der shared our vision for using AI against disinformation \u2014 and Gretchen AI won first place in the cybersecurity pitch!<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Advancing to Phase 2 of the SPRIND Funken Challenge<\/a><\/h5>

Gretchen AI selected among top teams developing real-time deepfake detection technology<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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by Yassine El Kheir<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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BiCrossMamba-ST:<\/span><\/span><\/h5>
Speech Deepfake Detection with Bidirectional Mamba Spectro-Temporal Cross-Attention.<\/span><\/span><\/h6><\/div>

AI can mimic voices from minutes of audio. <\/span><\/span>
BiCrossMamba-ST by Gretchen’s Team member Yassine El Kheir beats top deepfake detectors with fewer parameters and up to 67.7% higher accuracy.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\tby Arnab Das<\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Generalizable Audio Spoofing Detection using Non-Semantic Representations<\/span><\/span><\/h5>

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.<\/span><\/span><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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SPRIND Backs Gretchen AI in Deepfake Detection & Prevention Drive<\/span><\/span><\/h5>

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.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Gretchen AI featured in #ai_berlin blog!<\/span><\/span><\/span><\/span><\/a><\/h5>

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!<\/span><\/span><\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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From the lab to the street<\/h5>\n<\/div>\n

Gretchen AI founders Daniel R\u00f6der, 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.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Gretchen AI featured in #ai_berlin blog!<\/span><\/span><\/span><\/span><\/h3>

We are thrilled to be featured in the <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>#ai_berlin<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/a><\/strong> blog!\u00a0 <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>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 <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>hashtag <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/a>#ai_berlin<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/a> for<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/a> this special spotlight on our work!<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u00a0<\/span><\/span><\/span><\/span><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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SPRIND Backs Gretchen AI in Deepfake Detection & Prevention Drive<\/h3>\nThe\u00a0 <\/span><\/span>SPRIND \u2013 Federal Agency for Disruptive Innovations<\/strong> \u2013<\/span><\/span><\/a> \u00a0is now taking a fresh approach in every respect with the Deepfake Detection and Prevention program. Startups are seeking the best and, above all, quickly implementable ideas. Among them is Gretchen AI, a spin-off of the\u00a0 <\/span><\/span>German Research Center for Artificial Intelligence (DFKI)<\/span><\/span><\/a><\/strong> \u00a0. And we at dpa are involved as a partner. Together we want to develop solutions that also help newsrooms overcome the challenges posed by AI.<\/span><\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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From the lab to the street<\/span><\/h3>

Gretchen AI founders Daniel R\u00f6der, 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 Newspolygraph, Germany’s largest research project on media content verification, they collaborate with renowned public broadcasters as project partners.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Strategic Alliances Powering Gretchen AI\u2019s Mission<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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At Gretchen AI, we know the fight against disinformation and digital manipulation can\u2019t be won alone. That\u2019s why we\u2019ve partnered with leading voices in AI research, journalism, and public innovation to build a trusted ecosystem rooted in accuracy, transparency, and integrity.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Germany\u2019s largest AI research center, with 100+ spin-offs and 500+ AI industry and research projects.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Germany\u2019s federal agency for disruptive innovation, supports us financially and strategically to develop solutions that anticipate and shape the future of trustworthy information.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Germany\u2019s largest news agency, gives Gretchen AI access to its vast Picture Alliance database, enabling fast, large-scale visual content verification to uphold media integrity in real time.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/article><\/div><\/div><\/div><\/div><\/article>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Truth Engine Exploring AI, Ethics & Information Integrity In a world where synthetic media\u2014deepfakes, AI-generated voices, and manipulated images\u2014are becoming alarmingly convincing, Gretchen AI is pioneering a new kind of digital defense. Our intelligent agents are designed not just to detect manipulation, but to understand context. Success Story Gretchen AI is among the nominees for Innovationspreis Berlin Brandenburg It\u2019s 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. Read more News What’s New at Gretchen AI Our latest updates are here! We\u2019ve 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. Read more Events Summer Highlights 2025 This summer was packed with inspiring events, strong collaborations, and exciting milestones for Gretchen AI. From community engagements to innovation programs, we reflected, learned, and grew together. Here are some of our favorite moments from the season. Read more Success Story Gretchen AI Wins Cybersecurity Pitch at VivaTech 2025 Daniel R\u00f6der shared our vision for using AI against disinformation \u2014 and Gretchen AI won first place in the cybersecurity pitch! Read more Success Story Advancing to Phase 2 of the SPRIND Funken Challenge Gretchen AI selected among top teams developing real-time deepfake detection technology Read more Novel AI Architecture 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. Read more Research by Arnab Das 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. Read more Success Story 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. Read more Success Story 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! Read more Success Story From the lab to the street Gretchen AI founders Daniel R\u00f6der, 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. Read more Gretchen AI featured in #ai_berlin blog! We are thrilled to be featured in the #ai_berlin blog!\u00a0 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!\u00a0 SPRIND Backs Gretchen AI in Deepfake Detection & Prevention Drive The\u00a0 SPRIND \u2013 Federal Agency for Disruptive Innovations \u2013 \u00a0is now taking a fresh approach in every respect with the Deepfake Detection and Prevention program. Startups are seeking the best and, above all, quickly implementable ideas. Among them is Gretchen AI, a spin-off of the\u00a0 German Research Center for Artificial Intelligence (DFKI) \u00a0. And we at dpa are involved as a partner. Together we want to develop solutions that also help newsrooms overcome the challenges posed by AI. From the lab to the street Gretchen AI founders Daniel R\u00f6der, 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 Newspolygraph, Germany’s largest research project on media content verification, they collaborate with renowned public broadcasters as project partners. Strategic Alliances Powering Gretchen AI\u2019s Mission At Gretchen AI, we know the fight against disinformation and digital manipulation can\u2019t be won alone. That\u2019s why we\u2019ve partnered with leading voices in AI research, journalism, and public innovation to build a trusted ecosystem rooted in accuracy, transparency, and integrity. Germany\u2019s largest AI research center, with 100+ spin-offs and 500+ AI industry and research projects. Germany\u2019s federal agency for disruptive innovation, supports us financially and strategically to develop solutions that anticipate and shape the future of trustworthy information. Germany\u2019s largest news agency, gives Gretchen AI access to its vast Picture Alliance database, enabling fast, large-scale visual content verification to uphold media integrity in real time.<\/p>","protected":false},"author":8,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-3957","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/gretchen-ai.com\/en\/wp-json\/wp\/v2\/pages\/3957","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gretchen-ai.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gretchen-ai.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gretchen-ai.com\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/gretchen-ai.com\/en\/wp-json\/wp\/v2\/comments?post=3957"}],"version-history":[{"count":316,"href":"https:\/\/gretchen-ai.com\/en\/wp-json\/wp\/v2\/pages\/3957\/revisions"}],"predecessor-version":[{"id":5225,"href":"https:\/\/gretchen-ai.com\/en\/wp-json\/wp\/v2\/pages\/3957\/revisions\/5225"}],"wp:attachment":[{"href":"https:\/\/gretchen-ai.com\/en\/wp-json\/wp\/v2\/media?parent=3957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}