AI Morning Brief

September 25, 2026 · Since the previous edition · 7 stories from 6 sources

lead · reporting

Google Releases Gemini 3.8 Flash TTS and Flash-Lite TTS With Prompt-Based Voice Design

Google has released Gemini 3.8 Flash TTS and Flash-Lite TTS, 2 new text-to-speech models available now through the Gemini API and Google AI Studio. Flash TTS designs new voices from natural language prompts across 100+ languages. It ranks #1 on Hume AI's Voice Design Benchmark with a score of 71....

Why it matters: Included as a consequential development from the edition window.

MarkTechPost →

conversation · reporting

The Pentagon wants $30 million to build an AI-powered lie detector

The US government wants to spend $30.3 million over the next five years on an improved form of lie detector, according to a Department of Defense budget request. The program, called “Polygraph+” or “Polygraph Next”, will focus on scoring algorithms that use artificial intelligence and machine learning and on a technique called “standoff sensing”, which…

Why it matters: Included as a consequential development from the edition window.

MIT Technology Review →

conversation · reporting

AI is dominating the conversation at Climate Week

This week, world leaders descended on Manhattan for the UN General Assembly. It’s also New York Climate Week—investors, policymakers, advocates, and journalists are colliding at panels, talks, and fancy dinners. With so many climate voices in one place, the discourse can feel a little louder than usual. This year, the unavoidable topic is artificial intelligence.…

Why it matters: Included as a consequential development from the edition window.

MIT Technology Review →

How this is made: Matthew Williamson defines the source mix, weights, and standing editorial rules; collection and AI summarization run automatically once each weekday. These summaries are not essays written by Matthew. Company announcements are labeled as primary sources, commentary remains attributed, and every item links to the complete original work.