Welcome to The Daily AI Briefing! In today's fast-moving world of artificial intelligence, staying informed is crucial. I'm your host, bringing you the most significant AI developments of the day. From groundbreaking model releases to industry shifts and practical tutorials, we've gathered everything you need to know about today's AI landscape in one concise briefing. Today, we'll cover xAI's new video generator Grok Imagine, Google's multi-agent Gemini 2.5 Deep Think, a clever tutorial for extending AI videos, Anthropic's research into AI personality shifts, and more industry updates worth your attention. First up, Elon Musk's xAI is officially rolling out Grok Imagine to all SuperGrok and Premium+ X subscribers on iOS. This new AI image and video generator creates 15-second videos from simple text prompts or images, complete with native audio. The model generates content significantly faster than competitors, with Musk claiming it works in "1/2 to 1/4 the time rivals take to make a single image." While the videos appear more visibly "AI-generated" compared to other platforms, Musk promises the quality "should get better every day." Moving to Google, they've released Gemini 2.5 Deep Think, their first publicly available multi-agent model. This system employs "parallel thinking" by spawning multiple agents to explore possible solutions simultaneously before determining the best answer. Impressively, it scored 34.8% on Humanity's Last Exam, outperforming both Grok 4 and OpenAI's o3. The model is now available to Gemini app users on Google's $250/month Ultra plan, with a specialized IMO variant accessible to select researchers. For content creators, there's a clever workaround to bypass Google Veo 3's 8-second clip limit. Using Google Flow's frame-to-video feature, you can create longer videos while maintaining character consistency. The process involves creating an initial video, saving the final frame, then using that frame to generate a new sequence, and finally combining the clips for a seamless experience. In research news, Anthropic has identified "Persona Vectors" – neural network activations that help understand why AI models sometimes exhibit unexpected personality traits like sycophancy or unethical behavior. By comparing activation patterns between opposing behaviors, researchers can now better control these shifts and identify problematic training data. Among trending AI tools today are Learnify for creating video courses from any content, Jenova AI for the MCP ecosystem, Runway's Aleph video editing model now available via API, and Cohere's enterprise-focused Command A Vision. Meanwhile, Mistral is reportedly seeking $1 billion in funding at a $10 billion valuation, and OpenAI has removed the feature allowing ChatGPT conversations to be discoverable by search engines. That wraps up today's AI Briefing. The pace of innovation continues to accelerate, with companies pushing boundaries in video generation, multi-agent thinking, and understanding AI behaviors. As these technologies become more accessible, we're seeing both exciting possibilities and important questions about control and direction. Stay curious, stay informed, and we'll see you tomorrow for another update on the rapidly evolving world of artificial intelligence. This has been The Daily AI Briefing.