# 📆 ThursdAI - Dec 18 - Gemini 3 Flash, Grok Voice, ChatGPT Appstore, Image 1.5 & GPT 5.2 Codex, Meta Sam Audio & more AI news

Page: https://stenobird.com/podcast/thursdai-the-top-ai-news-from-the-past-week-6519604/thursdai-dec-18-gemini-3-flash-grok-voice-chatgpt-appstore-image-1-5-gpt-5-2-codex-meta-sam-audio-more-ai-news
Text version: https://stenobird.com/podcast/thursdai-the-top-ai-news-from-the-past-week-6519604/thursdai-dec-18-gemini-3-flash-grok-voice-chatgpt-appstore-image-1-5-gpt-5-2-codex-meta-sam-audio-more-ai-news.md
Podcast: [ThursdAI - The top AI news from the past week](https://stenobird.com/podcast/thursdai-the-top-ai-news-from-the-past-week-6519604)
Published: 2025-12-19T00:18:19+00:00
Episode link: https://sub.thursdai.news/p/thursdai-dec-18-gemini-3-flash-grok
Audio file: https://prfx.byspotify.com/e/api.substack.com/feed/podcast/182041543/c08452d414aa4b96588660458f8b3e0f.mp3
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JSON: https://stenobird.com/v1/public/podcasts/thursdai-the-top-ai-news-from-the-past-week-6519604/episodes/thursdai-dec-18-gemini-3-flash-grok-voice-chatgpt-appstore-image-1-5-gpt-5-2-codex-meta-sam-audio-more-ai-news
Duration seconds: 2352

## Resource

Hey folks 👋 Alex here, dressed as 🎅 for our pre X-mas episode! We’re wrapping up 2025, and the AI labs decided they absolutely could NOT let the year end quietly. This week was an absolute banger—we had Gemini 3 Flash dropping with frontier intelligence at flash prices, OpenAI firing off GPT 5.2 Codex as breaking news DURING our show, ChatGPT Images 1.5, Nvidia going all-in on open source with Nemotron 3 Nano, and the voice AI space heating up with Grok Voice and Chatterbox Turbo. Oh, and Google dropped FunctionGemma for all your toaster-to-fridge communication needs (yes, really). Today’s show was over three and a half hours long because we tried to cover both this week AND the entire year of 2025 (that yearly recap is coming next week—it’s a banger, we went month by month and you’ll really feel the acceleration). For now, let’s dive into just the insanity that was THIS week. 00:00 Introduction and Overview 00:39 Weekly AI News Highlights 01:40 Open Source AI Developments 01:44 Nvidia's Nemotron Series 09:09 Google's Gemini 3 Flash 19:26 OpenAI's GPT Image 1.5 20:33 Infographic and GPT Image 1.5 Discussion 20:53 Nano Banana vs GPT Image 1.5 21:23 Testing and Comparisons of Image Models 23:39 Voice and Audio Innovations 24:22 Grok Voice and Tesla Integration 26:01 Open Source Robotics and Voice Agents 29:44 Meta's SAM Audio Release 32:14 Breaking News: Google Function Gemma 33:23 Weights & Biases Announcement 35:19 Breaking News: OpenAI Codex 5.2 Max To receive new posts and support my work, consider becoming a free or paid subscriber. Big Companies LLM updates Google’s Gemini 3 Flash: The High-Speed Intelligence King If we had to title 2025, as Ryan Carson mentioned on the show, it might just be “The Year of Google’s Comeback.” Remember at the start of the year when w…

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