The Rundown AI -每日精选 07月31日
AI video breaks the 60-second barrier
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AI视频生成技术迎来重大突破,Lightricks发布的LTXV模型更新,使得AI视频生成时长首次突破60秒,并支持实时控制。这一创新允许创作者在视频生成过程中动态调整姿态、景深和风格,实现流畅的场景连续演进,无需剪辑。LTXV模型基于完全授权的数据进行训练,可高效运行于消费级GPU,并提供开源版本。该模型从第一秒起即实时流式传输视频,为AI视频制作开启了全新的创作工作流,彻底改变了以往短促、片段化的AI视频生成模式,为内容创作者提供了前所未有的灵活性和可能性。

🎥 LTXV模型实现60秒以上AI视频实时生成与控制:Lightricks发布的LTXV模型更新,打破了以往AI视频生成时长普遍不超过几秒的限制,首次实现了超过60秒的视频生成。更重要的是,它支持实时流式传输,用户可以在视频生成过程中通过调整提示词来实时控制姿态、景深和风格,实现动态的场景演进,极大地提升了创作的灵活性和交互性。

💡 LTXV模型的开放性与高效性:LTXV模型采用完全授权的数据进行训练,并且提供13B和2B参数的开源版本,用户可以免费在GitHub和Hugging Face上获取。该模型能够高效运行在消费级GPU上,这使得更多普通用户能够参与到高质量AI视频的创作中,降低了技术门槛,促进了AI视频技术的普及。

🚀 改变AI视频创作工作流:过去AI视频生成通常需要等待数分钟才能获得几秒钟的片段,而LTXV的实时、长时生成能力,使得创作者可以将等待时间转变为实时指导和调整,从而开辟了全新的创作流程。这种从被动等待到主动引导的转变,预示着AI视频内容将更加丰富、连贯和富有创意。

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Good morning, {{ first_name | AI enthusiasts }}. The past year of AI video acceleration has brought hyper-realism, smooth motion, and perfect lip-syncs — all trapped in frustrating 5-second bursts.

But an open-weight model just shifted the conversation from fragmented edits to real-time directing of 60-second generations — with LTXV’s update handing creators the keys to a brand-new style of AI video production.


In today’s AI rundown:

    LTXV unlocks 60-second AI videos

    New ChatGPT agents for Excel, PowerPoint

    Research market conditions and create financial dashboards

    Self-driving AI lab discovers materials 10x faster

    4 new AI tools & 4 job opportunities

LATEST DEVELOPMENTS

LIGHTRICKS

🎥 LTXV unlocks 60-second AI videos

Image source: Lightricks

The Rundown: Lightricks just released an update to its open-weights LTXV model, now allowing for image-to-video generations over 60 seconds long — streamed in real time, with live prompt control and efficient performance on consumer GPUs.

The details:

    The model streams video live as it generates, returning the first second instantly while building scenes continuously without cuts.

    Users can apply control inputs throughout generation, adjusting poses, depth, and style mid-stream for dynamic scene evolution.

    LTXV is trained on fully licensed data, with direct integration with LTX Studio’s production suite and the ability to run efficiently on consumer devices.

    The open-source model has both 13B and mobile-friendly 2B parameter versions, available free on GitHub and Hugging Face.

Why it matters: With most video models topping out at just a few seconds of output, LTXV’s real-time, 60-second outputs change what’s possible with current AI video content. The shift from waiting minutes for short clips to directing longer scenes as they generate will open up entirely new creative workflows.

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Ava operates within Artisan, which consolidates every tool you need for outbound:

    300M+ high-quality B2B prospects

    Automated lead enrichment across 10+ data sources

    Multi-channel outreach with full email deliverability management

    Live intent signal scraping, website visitor ID, fundraise announcements & more

Book a demo and supercharge your sales team.

OPENAI

📊 New ChatGPT agents for Excel, PowerPoint

Image source: Ideogram / The Rundown

The Rundown: OpenAI is reportedly developing ChatGPT agents that can create and edit spreadsheets or presentations directly in chat and bypass the need for suites like Microsoft Office and Google Workspace, according to a report from The Information.

The details:

    ChatGPT will feature dedicated buttons below the search bar to generate spreadsheets and presentations using natural language prompts.

    The outputted reports will be directly compatible with Microsoft’s open-source formats, allowing users to open them across common applications.

    An early tester reported “slow and buggy” performance from the ChatGPT agents, with a single task taking up to half an hour.

    OpenAI reportedly also has a collaboration tool allowing multiple users to work together within ChatGPT, but there is no information on its release yet.

Why it matters: The ability to create sheets and presentations in ChatGPT, away from Microsoft’s Office empire, feels like a personal shot — but OpenAI “steamrolling” some of the most-used business apps isn’t a surprising move. Still, “slow and buggy” won’t cut it if it truly wants to displace Microsoft and Google’s widely adopted products.

AI TRAINING

📊 Research market conditions and create financial dashboards

The Rundown: In this tutorial, you will learn how to use Grok 4's advanced research and canvas to conduct comprehensive market analysis and build dynamic financial forecasting models.

Step-by-step:

    Access Grok and choose Grok 4 in the model dropdown menu

    Request comprehensive market research for [INDUSTRY] financial forecasting by analyzing current economic conditions.

    Ask for scenario planning: “Create three financial scenarios: best case, most likely, and worst case for the next 18 months.”

    Create visualizations using its Canvas by asking it to code a visual financial dashboard with revenue projections and key economic indicators.

Pro tip: Grok 4's real-time access keeps your forecasts current as market conditions evolve.

PRESENTED BY SLACK FROM SALESFORCE

🔎 Find everything with enterprise search in Slack

The Rundown: Slack just introduced enterprise search, turning a single search bar into your company’s knowledge engine to pull answers across your data and from third-party apps without a single context switch.

In this 20-minute webinar, you’ll learn:

    How Slack unifies structured and unstructured data by connecting to apps like Salesforce, Google Drive, Microsoft Teams, and more

    Best practices for structuring questions to get the best results from enterprise search

    How enterprise search with Agentforce equips employees to ramp faster & work smarter

Learn more about enterprise search and watch the webinar.

AI RESEARCH

🧪 Self-driving AI lab discovers materials 10x faster

Image source: North Carolina State University

The Rundown: North Carolina State University researchers developed an AI-powered, self-driving lab that continuously streams chemical experiments, collecting 10 times more data than traditional systems and speeding up the search for new materials.

The details:

    The new system uses dynamic, real-time experiments instead of waiting for each chemical reaction to finish, keeping the lab running continuously.

    By capturing data every half-second, the lab’s machine-learning algorithms quickly pinpoint the most promising material candidates.

    The approach also significantly cuts down on the amount of chemicals needed and slashes waste, making research more sustainable.

    Researchers said the results are a step closer to material discovery for “clean energy, new electronics, or sustainable chemicals in days instead of years”.

Why it matters: Many of the scientific breakthroughs coming in the AI boom have been medical-related, and materials science underpins many of the fields set to drive these world-changing innovations. Just like we’ve seen across other domains, the theme remains the same — AI taking complex research from years to days.

QUICK HITS

🛠️ Trending AI Tools

    🧠 Semrush AI Toolkit - Benchmark your brand’s AI visibility vs. competitors, monitor sentiment, and uncover high-impact AI prompts by real customers*

    🎬 Act-Two - Runway’s next-generation AI motion capture model

    ⏺️ Record Mode - Capture & summarize meetings & voice notes with ChatGPT

    ☎️ AI Mode - Use Google’s AI agents to make calls on your behalf

*Sponsored Listing

💼 AI Job Opportunities

    🏗️ Glean - Solutions Architect

    📊 Abridge - Product Manager, Enterprise

    🚀 OpenAI - Design Execution Manager, Stargate

    🎬 Luma AI - Account Executive, Entertainment

📰 Everything else in AI today

Meta reportedly poached Jason Wei and Hyung Won Chung from OpenAI, with the two researchers previously contributing to both the o1 model and Deep Research.

Anthropic is gaining Claude Code developers Cat Wu and Boris Cherny back, with the duo returning after joining Cursor-maker Anysphere earlier this month.

Microsoft is rolling out Desktop Share for Copilot Vision to Windows Insiders, allowing the app to view and analyze content directly on users’ desktops in real-time.

Scale AI is laying off 14% of its staff in a restructuring following the departure of CEO Alexandr Wang and other employees as part of a multibillion-dollar investment by Meta.

OpenAI is reportedly creating a checkout system within ChatGPT for users to complete purchases, with the company receiving a commission from sales.

Anthropic is receiving interest from investors for a new funding round at a valuation of over $100B, according to a report from The Information.

AWS unveiled Bedrock AgentCore in preview, a new enterprise platform of tools and services for deploying AI agents at scale.

COMMUNITY

🎥 Join our next live workshop

Join our next workshop this Friday, July 18th, at 4 PM EST with Dr. Alvaro Cintas, The Rundown’s AI professor. By the end of the workshop, you'll be able to use Perplexity Comet (and other alternatives) to automate your browsing experience.

RSVP here. Not a member? Join The Rundown University on a 14-day free trial.

See you soon,

Rowan, Joey, Zach, Alvaro, and Jason—The Rundown’s editorial team

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