How Founders Use AI

How people use AI, and the tool for each job.

The AI map of which tool is for which job, checked on 29 October 2026, what changed since July, and every video, thread, guide, podcast and tool behind 278 answered questions on putting AI to work.

The AI map: which tool is for which job, as of 29 October 2026

Models and assistants AI assistants Frontier models Open-weight models Decision models

Building with AI Coding agents App builders Design and presentations Spreadsheets, data and internal tools

Agents and research Agents that do tasks for you AI browsers No-code automation with AI steps Research and search Meeting notes and everyday productivity

Making media Video generation Images Avatars and voice Music and audio Video editing

AI at work Prospecting and sales Marketing, ads and AI search Customer support agents Legal and contracts Finance and accounting Hiring and HR

What changed since July

  1. 28 Oct 2026 GitHub began including Copilot with GitHub Enterprise licences and added projects to the Copilot app, where several agents work across repositories. Coding agents github.blog
  2. 27 Oct 2026 n8n released the 3.0 beta, a reliability and security release with breaking changes; self-hosting now runs on Docker only and the stable release is due in early December. No-code automation with AI steps blog.n8n.io
  3. 27 Oct 2026 Hex released Hex 4.0, rebuilt for analysts and AI agents working together, with a $100 million raise. Spreadsheets, data and internal tools hex.tech
  4. 26 Oct 2026 Replit launched Replit for Business, and the next day Cloud Agents that let non-engineers propose changes to a company codebase. App builders blog.replit.com
  5. 26 Oct 2026 OpenAI released GPT-6.1 Terra at $1 / $5 per million tokens, half the price of GPT-6.1 Sol. Frontier models openai.com
All 108 changes

What founders use most, ranked by how many answers lean on it.

  1. A hands-on implementation guide with before-and-after cost numbers. digitalocean.com Guide Prompt Caching for Anthropic and OpenAI Models DigitalOcean
  2. Saves you from the premature self-host-a-model cost trap. ml6.eu Article Why 'Cheaper Tokens' Isn't a Good Reason to Own Your LLMs ML6
  3. Why the price curve should keep falling, and what that means for your roadmap. weightythoughts.com Article AI's Plummeting Prices Are a Software Story, Not a Hardware One Weighty Thoughts
  4. The clearest official explanation of what an agent eval actually is. anthropic.com Guide Demystifying evals for AI agents Anthropic
  5. The philosophy behind the top-grossing evals course, free to read. hamelhusain.substack.com Article AI Evals For Engineers & Product Managers Hamel Husain
  6. The 60-second version of why evals became the must-have skill. x.com Thread Lenny on evals: watch them build one live Lenny Rachitsky
  7. Written notes of the full workflow: error analysis to automated judges. aakashg.com Guide AI Evals Step-by-Step: Hamel & Shreya Masterclass Aakash Gupta
  8. Explains pass@k and why you must run agent tests many times. cameronrwolfe.substack.com Article Agent Evaluation: A Detailed Guide Cameron Wolfe
  9. Field lessons from teams that moved agents from demo to production. infoq.com Article Evaluating AI Agents in Practice: Benchmarks, Frameworks, and Lessons Learned InfoQ
  10. A single-sitting starter recipe for your first agent eval. zenvanriel.com Guide AI Agent Evaluation: A Practical Step-by-Step Guide Zen van Riel
  11. Covers the metrics that matter: task success, step count, faithfulness. turingcollege.com Guide Evaluating AI Agents: A Practical Guide Turing College
  12. Connects evals to shipping cadence rather than treating them as QA theatre. lennysnewsletter.com Article Building eval systems that improve your AI product Lenny's Newsletter
  13. A worked example you can copy line by line for your own product. arize.com Article AI Evals Course Homework: the Recipe Bot Workflow Arize AI
  14. Surveys the tooling landscape so you do not build eval infrastructure from scratch. medium.com Article AI Agent Evaluation: Frameworks, Strategies, and Best Practices Dave Davies
  15. A checklist to run before you let an agent near customers. getmaxim.ai Article 10 Essential Steps for Evaluating the Reliability of AI Agents Maxim AI
  16. The same argument in shareable form for your team channel. simonw.substack.com Article The lethal trifecta (newsletter edition) Simon Willison
  17. The full running history of the attack class, from the person who named it. simonwillison.net Article Prompt injection series Simon Willison
  18. Fresh real-world exploits showing this is not theoretical. simonw.substack.com Article Prompt injections as far as the eye can see Simon Willison
  19. The industry-standard checklist, free and framework-agnostic. cheatsheetseries.owasp.org Guide AI Agent Security Cheat Sheet OWASP
  20. Translates the OWASP list into concrete actions for small teams. goteleport.com Article OWASP Top 10 for Agentic Applications: Key Takeaways Teleport
  21. Security researchers show working attacks and layered defenses. hiddenlayer.com Article How the Lethal Trifecta Exposes Agentic AI HiddenLayer
  22. Frames the fix as an authorization problem, which is what it is. osohq.com Article Understanding the Lethal Trifecta of AI Agents Oso
  23. The enterprise-buyer view, useful when their security team reviews your agent. techtarget.com Article The agentic AI lethal trifecta: what CISOs should know TechTarget
  24. Argues you cannot prompt your way to safety; the architecture must enforce it. cyera.com Article Why AI Agents Require Architectural Boundaries Cyera

Show the next 24

Playbooks

A goal, and the route through it a step at a time.

Start using AI well Pick an assistant, learn with it, hand it real work, and keep yourself and your data safe. 5 steps Build your product with AI From a prompt to a shipped product: prototype, build, and wire AI into what you ship. 6 steps Code and ship with AI Write, ship, and maintain real software as a founder, with AI as your pair. 4 steps Design and prototype with AI Go from idea to a clickable prototype without a designer. 3 steps Build AI agents and automations Wire up agents and internal tools that do real work for you. 3 steps Put AI inside your product Ship AI features users actually feel, not a bolted-on chatbot. 3 steps Research your market with AI Size the market, study competitors, and read data in hours, not weeks. 3 steps Market and grow with AI Content, creative, and distribution: fill the top of the funnel without a big team. 5 steps Create content with AI Write, film, and design a content engine that runs without a team. 3 steps Get found in AI search Show up when founders and buyers ask AI, not just Google (AEO/GEO). 3 steps Run ads with AI Brief creatives, read the numbers, and optimize spend with AI. 3 steps Find and serve customers with AI Research the market, prospect, close, and support, with AI doing the heavy lifting. 4 steps Sell and prospect with AI Find leads, personalize outreach, and run better sales calls. 3 steps Support customers with AI Answer faster and deflect tickets without losing the human touch. 3 steps Run the back office with AI The unglamorous grind: workflows, finance, legal, and hiring, automated where it counts. 5 steps Automate your workflows Stitch your tools together so the busywork runs itself. 3 steps Hire and manage your team with AI Source, screen, and onboard faster, and keep the team in sync. 3 steps Handle legal and finance with AI Draft contracts and stay on top of the numbers without a big spend. 2 steps Be more productive with AI Get more done and think sharper with AI as a daily habit. 3 steps Become an AI-native founder The meta-skills: build your stack, prompt well, and use AI to research, think, and decide. 6 steps Build your AI stack Pick the tools worth paying for and the prompts worth reusing. 3 steps

The questions, by topic

Building & Product

Vibe Coding 15 Databases & Internal Tools 11 AI Agents 15 Design & Prototyping 12 AI in Your Product 13

Research & Knowledge

Search & Research 13 Market Research 13 Data Analysis 13

Marketing & Growth

Content Creation 12 Video, Image & Audio 14 Getting Found in AI Search (AEO/GEO) 12 Ads & Performance Marketing 14 Social & Community 12

Sales & Customers

Sales Prospecting 13 Customer Support 6 CRM & Sales Calls 12

Operations & Back-office

Legal & Contracts 13 Finance & Accounting 3 Hiring & HR 3 Productivity 3 Workflows & Automation 3

Strategy & The AI-Native Founder

Fundraising 6 Prompting 3 Building Your AI Stack 3 AI as a Thinking Partner 4

Everyday AI

Choosing Your AI Assistant 8 Learning with AI 7 Working with AI Agents 7 Using AI Safely 8 AI in Indian Languages 7
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