What is RAG? How retrieval-augmented generation actually works (with a real project)

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What is RAG? How retrieval-augmented generation actually works (with a real project) – An LLM like GPT-4, Gemini, or Claude learns by processing a huge slice of the internet and books and code. That process ends at a specific point in time. After training is complete, the model’s knowledge is frozen. It cannot browse the web. It cannot read your company’s internal documentation. It has no idea what happened last Tuesday.

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NVIDIA Polar explained: training AI coding agents with token-faithful GRPO

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NVIDIA Polar explained: training AI coding agents with token-faithful GRPO – Reinforcement learning for language models hit a wall nobody talks about enough. Not the data wall, not the compute wall. The integration wall. You have a sophisticated agent harness — something that took months to build, tuned for specific tool schemas, context policies, multi-agent orchestration — and you want to run RL on top of it. Standard frameworks tell you to rewrite everything behind their interfaces. Most teams give up or ship a half-baked version that loses critical training signals along the way.

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What is Vigolium? A complete guide to the open source vulnerability scanner

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What is Vigolium? A complete guide to the open source vulnerability scanner – Security teams have a problem most vendors won’t admit out loud: their scanners lie. Not deliberately, but structurally. They flood reports with noise, miss the things that matter, and operate like black boxes that nobody fully trusts. Vigolium, an open source vulnerability scanner that fuses deterministic scanning with an in-process AI agent runtime, is a direct answer to that problem.

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How developers supercharge Codex, Claude, Antigravity, and Cursor AI with MCP servers

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How developers supercharge Codex, Claude, Antigravity, and Cursor AI with MCP servers – Coding agents become far more useful the moment they stop guessing from memory and start working from live project context. A bare model can explain code, draft a function, or suggest a fix. Connect MCP servers and the same agent can read the GitHub issue, inspect a Sentry event, pull current framework docs, open the failing page in Chrome, query a staging schema, and come back with a patch that fits the actual project.

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This open-source AI video model creates 4-minute videos directly on your PC

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This open-source AI video model creates 4-minute videos directly on your PC- While everyone is busy arguing about which paid AI video platform produces the best results, a Chinese tech company called Meituan quietly released something that changes the conversation entirely. No subscription required. No watermark slapped onto your work. No cloud server processing your prompts somewhere you can’t see. Just a model you download, run on your own machine, and use to generate minutes-long videos from scratch.

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Claude’s New Infinite Context Window Could Change How You Work Forever

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Claude’s New Infinite Context Window Could Change How You Work Forever – Claude, Anthropic’s AI model, has received a substantial upgrade. The headline feature is something called an infinite context window, but that is just one piece of a much bigger picture. When you zoom out and look at all the updates together, what you are seeing is a clear shift in the direction of AI tools. They are moving away from being smart chatbots and toward being something closer to long-term, autonomous collaborators.

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American AI Startup Poolside Releases Laguna XS.2, a Free High-Performance Open Model for Local Agentic Coding

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American AI Startup Poolside Releases Laguna XS.2, a Free High-Performance Open Model for Local Agentic Coding- Most of the headlines about AI coding assistants go to the big names: OpenAI, Google, Anthropic. But last week, a smaller San Francisco-based startup called Poolside quietly dropped something that deserves a lot more attention than it’s getting. They released not one but two new AI models, a suite of developer tools, and an open-weight model that you can literally run on your laptop, for free, offline, with no strings attached.

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How to Rank in AI Search Engines: The Ultimate Practical Guide

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How to Rank in AI Search Engines: The Ultimate Practical Guide- Now a person can ask ChatGPT, Google AI Overviews, Perplexity, Claude, Copilot, or another answer engine a full question and get a direct response. They might ask, “What CRM should I use for a small roofing company?” or “How do I fix a Shopify collection page that is not ranking?” The answer engine may return a summary, a few cited sources, related questions, product names, steps, and sometimes a map or shopping option.

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xAI Unveils Grok 4.3 with Ultra-Low Pricing and Advanced Voice Cloning Tech

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xAI Unveils Grok 4.3 with Ultra-Low Pricing and Advanced Voice Cloning Tech – Before getting into the details, let us quickly cover the basics. xAI is Elon Musk’s artificial intelligence company. He founded it with the specific goal of building an AI that could compete with OpenAI, the company he co-founded and then left on bad terms. Grok is xAI’s main AI model, and it is their answer to GPT from OpenAI and Claude from Anthropic.

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