{"schema":"postcutoff/event@1","as_of":"2026-10-08T23:45:00+02:00","url":"https://postcutoff.com/e/2026-10-07-synthid-detector-public-launch/","md":"https://postcutoff.com/e/2026-10-07-synthid-detector-public-launch/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"Adam Bicz","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-10-07-synthid-detector-public-launch","date":"2026-10-07","date_precision":"day","short_title":"Google opens SynthID Detector to everyone","deck":"Checks images, video and audio for watermarks from Google, OpenAI, Nvidia and Kakao models","takeaway":"On Oct 7, 2026 Google made its improved SynthID Detector publicly available at synthid.com.","category":"policy-safety","category_label":"Policy & safety","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"TechCrunch: Google's new SynthID website can identify AI-generated media","url":"https://techcrunch.com/2026/10/07/googles-new-synthid-website-can-identify-ai-generated-media/","type":"press","group":"press","domain":"techcrunch.com"},{"n":2,"title":"Ars Technica: Google rolls out improved SynthID AI content detector, now available globally","url":"https://arstechnica.com/ai/2026/10/google-rolls-out-improved-synthid-ai-content-detector-now-available-globally/","type":"press","group":"press","domain":"arstechnica.com"}],"official":0,"filed":"2026-10-08","updated":"2026-10-08","orgs":["Google","Google DeepMind"],"title":"Google opens SynthID Detector to everyone: checks images, video and audio for watermarks from Google, OpenAI, Nvidia and Kakao models","summary":"On Oct 7, 2026 Google made its improved SynthID Detector publicly available at synthid.com. Until then it was limited to journalists, media professionals and researchers. It identifies AI-generated images, video and audio carrying a SynthID watermark. These come from Google's own models and from partners OpenAI, Nvidia and Kakao, with Apple support \"coming soon\". Microsoft and Meta use other watermarking standards, so their content is not covered.","key_facts":["Public launch Oct 7, 2026 at synthid.com (Ars Technica: 'now available globally'); previously a limited portal for journalists, media professionals and researchers","Formats: images (JPG/JPEG, PNG, BMP, WEBP, AVIF, HEIC/HEIF, TIFF/TIF, GIF), video (MP4, MOV, WEBM) and audio (WAV, MP3, OGG, FLAC, AAC, M4A). TechCrunch counts 18 formats; Techmeme's summary says 20","Detects content from Google models and products (Nano Banana, Veo, Lyria, Gemini, Flow, ProducerAI, Vids) and from SynthID partners OpenAI, Nvidia and Kakao; Apple support 'coming soon' (TechCrunch)","Gaps: Microsoft and Meta use different watermarking standards, so their output is not covered","Usage: SynthID verification already gets about 1 million requests a day; checks are also built into the Gemini app and Chrome (TechCrunch)"],"key_numbers":[],"tags":["synthid","watermarking","provenance","deepfakes","detection","google"],"science":null,"body_md":"## What happened\n\nGoogle turned SynthID Detector from a restricted tool into a public website. Anyone can upload media and check for the invisible\nSynthID watermark. Coverage now reaches beyond Google because OpenAI, Nvidia and Kakao embed SynthID in their generators.\n\n## Why it matters\n\nA single public checker that covers several labs' watermarks is a step toward cross-industry provenance. Major generators still use\nother schemes (Meta, Microsoft), and many open-weight models carry no watermark, so a negative result proves little.","disputed":[],"related":[{"id":"2026-10-05-openai-textgrain-eu-text-watermarking","url":"https://postcutoff.com/e/2026-10-05-openai-textgrain-eu-text-watermarking/","date":"2026-10-05","date_precision":"day","short_title":"OpenAI introduces textGrain text watermarking","deck":"On by default for ChatGPT and Codex in the EU, opt-in for the API worldwide","takeaway":"In 2024 OpenAI said it had a text watermarking method but held it back, partly because it could \"stigmatize use of AI as a useful writing tool for non-native English speakers\".","category":"policy-safety","category_label":"Policy & safety","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":12,"official":7,"filed":"2026-10-05","updated":"2026-10-07","orgs":["OpenAI"]},{"id":"2026-09-30-deepmind-synthid-bio","url":"https://postcutoff.com/e/2026-09-30-deepmind-synthid-bio/","date":"2026-09-30","date_precision":"day","short_title":"Google DeepMind introduces SynthID Bio, watermarking for AI-designed proteins and DNA","deck":null,"takeaway":"It was published in Nature, and the code, in vitro data and model weights were released to researchers for biosecurity and provenance tracking.","category":"policy-safety","category_label":"Policy & safety","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":2,"official":1,"filed":"2026-09-30","updated":"2026-09-30","orgs":["Google DeepMind"]}],"people":[],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-10-08","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-10-08","run":null,"sources_read":null,"updated":"2026-10-08","human_review":null,"version":{"date":"2026-10-08"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":160,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":99,"in_training_data":false},{"model_id":"gemini-3-8-flash","name":"Gemini 3.8 Flash","cutoff":"2026-03","days_after":190,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":129,"in_training_data":false}],"short_url":null}