Editor
Marcus Halden
Editor & lead writer, Lumen AI Journal
Background
Marcus has spent the last decade writing about software, productivity, and the tools that working professionals actually keep in their stacks. He has built and shipped products at startups and inside larger product teams, and brings that hands-on perspective to every review.
Areas of focus
- Large language models and AI assistants
- Writing, editing, and content workflows
- AI productivity tools for small teams
- Developer tooling and AI-native environments
Recent articles
- The Best ChatGPT Alternatives in 2026 (Tested for Real Work)
- AI Image Generators in 2026: A Practical Guide for Non-Designers
- Building an AI Productivity Stack for Small Teams (Without the Hype)
- Claude vs ChatGPT for Long-Form Writing: A Working Writer's Verdict
- Running Open-Source LLMs Locally in 2026: What's Actually Practical
- Midjourney v7 Review: Still the Aesthetic King, With Caveats
- AI Video in 2026: Runway, Sora, and Pika Compared on Real Briefs
- The Best AI Writing Tools in 2026 (That Aren't Just ChatGPT)
- AI and SEO in 2026: A Content Strategy That Still Works
- Notion AI vs Mem vs Obsidian: Which Knowledge Tool Wins in 2026?
- AI Meeting Notes Tools Compared: Granola, Fathom, Otter, and the Built-Ins
- GitHub Copilot vs Cursor vs Cody: Which AI Coding Tool Wins in 2026?
- AI Customer Support in 2026: What Actually Works for Small Businesses
- IA e ChatGPT: o guia completo para começar do zero em 2026
- IA no trabalho: como usar o ChatGPT para ganhar horas todo dia
- IA na educação: como estudar com ChatGPT sem deixar de pensar
- IA para pequenos negócios: como usar ChatGPT em marketing e vendas
- IA no cotidiano: 12 formas reais de usar ChatGPT na vida pessoal
Get in touch
Email Marcus at editor@lumen-ai-journal.com or via the contact page.