AI Tech Safar — Latest AI News, Tools & Trends

How to Build AI Agents with n8n: The Complete 2026 Tutorial (No Coding) TL;DR n8n is an open-source workflow automation platform - over 180,000 GitHub stars, a $2.5 billion valuation after an October 2025 funding round backed partly by Nvidia, and in 2026 it's become the go-to tool for building AI agents without writing code. This tutorial covers installing n8n, understanding the AI Agent node, and building five real workflows - from research agents to customer support triage. n8n vs Make vs Zapier: n8n is self-hostable and bills per workflow execution rather than per task, Make has the nicer visual canvas, Zapier has the most integrations. We compare all three below. Cost: self-hosting the Community Edition is genuinely free (just server costs, roughly $5-7/month). n8n Cloud no longer has a permanent free tier - only a 14-day trial - with paid plans starting around $20/month. Reviewed by Imran Khan Pathan, Editor at AI Tech Safar. I set up the exact self-hosted instal...

Mastering the GPT-6 Astra Ecosystem TL;DR This is a self-contained handbook that pairs GPT-6 Astra's technical architecture with the industry shifts around it in September 2026 - funding, infrastructure, geopolitics and safety. It was refreshed on October 5 with everything that has changed since launch. There is no free tier for Astra. You need ChatGPT Plus ($20/mo), one of the Pro plans (now $100, $200 or $500 a month), Business, Enterprise, or the pay-per-token API. Free and Go users can only reach the smaller GPT-6 Luna. The same week Astra shipped, Cognition AI hit a $48B valuation , Mistral closed a €3B Series D at €21B+ led by Samsung, TCS's HyperVault announced a 1GW campus in Hyderabad with up to ₹70,000 crore (~$7.4B) planned, and US intelligence agencies accused six Chinese AI firms of industrial-scale model distillation. That's the environment Astra is competing in. Since launch, OpenAI has added GPT-6 Sol and Luna (September 22) and GPT-6.1 Sol (Septe...

The Complete Perplexity AI Course: Free, Advanced, Start to Finish TL;DR This is a full, self-contained course on Perplexity AI - the cited-answer search engine that most people only use for "ChatGPT but with sources." We're not sending you anywhere else to "finish learning it." Every module below - Focus Modes, Deep Research, Spaces, and the free Comet browser - is taught here, in full. It's genuinely free to go deep : unlimited basic searches, several Deep Research queries a day, all six Focus Modes, Spaces, and the fully free Comet agentic browser. By the end of this course, you'll be able to run structured research investigations, build a persistent custom research assistant, and automate repetitive browsing tasks - without paying for anything. Reviewed by Imran Khan Pathan, Editor at AI Tech Safar. I ran real Deep Research sessions, built an actual Space, and used the Comet browser for a genuine multi-step task before writing a single in...

Google Gemini Notebook (NotebookLM) - Advanced Guide and Masterclass TL;DR This is a full, self-contained course on Gemini Notebook , the tool Google renamed from NotebookLM on July 16, 2026. It's the same tool and the same free plan under a new name, and you'll find it at notebook.google.com . We're not sending you anywhere else to "finish learning it." Every module below, from your first notebook to Deep Research reports, Audio Overviews and multi-notebook workflows, is taught here, in full. It's free to start : 100 notebooks and 50 sources each, with no credit card. One thing has changed since this course first went up: since September 2, usage limits are compute-based and refresh every five hours up to a weekly cap, replacing the old fixed daily counts. By the end of this course, you'll be able to build a source-grounded research assistant, run Deep Research investigations, generate podcast-style Audio Overviews and automate recurring research,...