All guides on Mongo — start here. Every guide is researched from primary sources, written in plain English, and ends with a clear verdict. New guides added regularly.
AI assistant comparisons
- Claude vs ChatGPT: which AI assistant is better in 2026? — writing, long documents, coding and pricing, verdict by use case.
- ChatGPT vs Gemini: which AI should you use in 2026? — free-tier value vs ecosystem breadth, real-world scenarios.
- Claude vs Gemini: which AI assistant fits you in 2026? — the writer’s assistant vs the Google-native assistant.
- Perplexity vs ChatGPT: which is better for research? — cited answers vs deep dossiers, the 2-tool rule.
- Grammarly vs ChatGPT: which is better for writing? — polish-everywhere vs draft-from-scratch, writer workflows.
- GitHub Copilot vs Cursor: which AI coding tool wins? — $10 assistant vs $20 agentic editor, credits-era pricing.
- Obsidian vs Evernote: privacy vs convenience in 2026? — files you own vs best capture-and-search.
- Evernote vs Notion: which note-taking app is better? — capture-and-search vs databases, 2026 lineups.
- Todoist vs Notion: simple tasks vs everything workspace — speed vs power, plus the respected combo setup.
Best-of lists
- 10 best free ChatGPT alternatives in 2026 — Gemini, Claude, Perplexity, DeepSeek and more, free-tier limits spelled out.
- 10 best free AI image generators in 2026 — allowances, watermarks and commercial-rights warnings.
- 7 best AI video generators in 2026 — Runway, Pika, Kling, Veo and more — plus what happened to Sora.
- 9 best AI writing tools in 2026 — ranked by job, with honest notes on pivoted tools.
- 5 best AI coding assistants in 2026 — Copilot to Cursor to Codex, the free-to-paid ladder.
- 8 best AI tools for students in 2026 — the complete $0 study stack plus integrity rules.
How-to guides
- How to use ChatGPT: a beginner’s guide (2026) — prompting formula, custom instructions, files, voice, Deep Research, privacy.
- How to use Gemini: a beginner’s guide (2026) — Gems, extensions, files and research — the Google-native path.
- How to write better AI prompts: 9 techniques that work — role, context, format and six more — with before-and-after examples.
- What is ChatGPT? Everything you need to know — the jargon-free explainer, costs, limits, first steps.
Reviews
- ChatGPT Plus review: is the $20 upgrade worth it? — every feature priced, the two-feature rule, cheaper paths (Sora corrected Sep 2026).
- ChatGPT Go review: is the $8 plan worth it in 2026? — the middle tier tested — who it fits and who skips it.
Software comparisons
- Notion vs Obsidian: which note-taking app wins? — cloud workspace vs local markdown, head-to-head.
Explain concepts
- What is an AI agent? A plain-English guide — how agents differ from chatbots, what they do today, safe-start ladder.
- What is machine learning? A plain-English guide — definition, examples, limits — zero math required.
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