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Google has made SynthID.com available for checking images, video, and audio for invisible watermarks used by Google and its partners, including OpenAI and Nvidia, with a daily limit of approximately 10 checks per user. However, the tool does not detect all AI-generated content, as it depends on model providers that use SynthID and does not prevent watermark removal.
Google announced two new text-to-speech models that enable the creation of custom voices, line-by-line performance direction, and multi-speaker dialogues in more than 100 languages. Gemini 3.8 Flash TTS is available to developers through the Gemini API and Google AI Studio, while Flash-Lite targets large-scale audio applications.