Google released Gemini 3.8 Flash TTS and Gemini 3.8 Flash-Lite TTS, two new text-to-speech models in its Gemini Audio family. Flash TTS scored 71.4 on the Hume AI Voice Design Benchmark. The models add prompt-based voice design, line-by-line performance direction, and voice-replication safeguards, and they’re rolling out via the Gemini API and Google AI Studio with no open weights.
Simon Willison’s Weblog·3 weeks ago·
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Google released two Gemini text-to-speech models, gemini-3.8-flash-tts and gemini-3.8-flash-lite-tts, along with a playground and a voice library. Generating 1 minute 18 seconds of audio with Gemini 3.8 Flash TTS took about 20 seconds and cost 2.74 cents. Users can now generate longer multi-character conversations and create custom voices using a 30-second audio sample.
Google’s Private AI Compute team updated its architecture to add private, persistent server-side memory that keeps AI context across devices while meeting on-device privacy standards. The technical update is dated September 23, 2026. Private AI Compute shifts from a stateless cloud model that erased context after each task to a new encrypted “secure enclave” flow that decrypts memory only temporarily in isolated cloud storage and then re-encrypts it.
Gemini Audio introduced two new text-to-speech models, Gemini 3.8 Flash TTS and Gemini 3.8 Flash-Lite TTS, for creating more expressive, customizable voice outputs. Gemini 3.8 Flash TTS scored 71.4 on Hume AI’s Voice Design Benchmark. The rollout starts today in Google AI Studio and the Gemini API, expanding line-by-line dialogue control, faster high-volume use, and voice customization options across Gemini products and partners.
NextLM brought its AI Prospecting Agent to the Google Cloud Marketplace and Gemini Enterprise to help sales teams identify and rank leads from behavioral signals mapped to individuals. The service reports processing 35 billion behavioral signals daily and it only surfaces prospects in the top 10% of its scores. This integration lets customers buy through existing Google Cloud commitments and run the agent directly in Gemini Enterprise or via Google’s Agent Designer workflows.
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