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 360 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
- 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
- 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
- 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
- 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
- 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
What founders use most, ranked by how many answers lean on it.
- 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
- Covers the metrics that matter: task success, step count, faithfulness. turingcollege.com Guide Evaluating AI Agents: A Practical Guide Turing College
- 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
- 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
- A second full session using messy real data instead of toy examples. news.aakashg.com Podcast How to Do AI Evals Step-by-Step with Real Production Data Product Growth (Hamel & Shreya)
- 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
- 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
- The same argument in shareable form for your team channel. simonw.substack.com Article The lethal trifecta (newsletter edition) Simon Willison
- The full running history of the attack class, from the person who named it. simonwillison.net Article Prompt injection series Simon Willison
- The foundational explainer that makes the attack click in 15 minutes. simonw.substack.com Video Prompt injection explained, with video, slides, and a transcript Simon Willison
- Fresh real-world exploits showing this is not theoretical. simonw.substack.com Article Prompt injections as far as the eye can see Simon Willison
- The industry-standard checklist, free and framework-agnostic. cheatsheetseries.owasp.org Guide AI Agent Security Cheat Sheet OWASP
- Translates the OWASP list into concrete actions for small teams. goteleport.com Article OWASP Top 10 for Agentic Applications: Key Takeaways Teleport
- Security researchers show working attacks and layered defenses. hiddenlayer.com Article How the Lethal Trifecta Exposes Agentic AI HiddenLayer
- Frames the fix as an authorization problem, which is what it is. osohq.com Article Understanding the Lethal Trifecta of AI Agents Oso
- 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
- Argues you cannot prompt your way to safety; the architecture must enforce it. cyera.com Article Why AI Agents Require Architectural Boundaries Cyera
- A copyable taint-tracking and approval-gating pattern for your own build. github.com Tool Lethal trifecta threat model (agentic patterns repo) nibzard (awesome-agentic-patterns)
- A calm engineering-management view of guardrails and human-in-the-loop. infoworld.com Article Building AI agents the safe way InfoWorld
- How a major platform maps each OWASP risk to concrete mitigations. microsoft.com Article Addressing the OWASP Top 10 Risks in Agentic AI Microsoft Security
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Video
Simon Willison on Industry's Tardy Response to Prompt Injection
Simon Willison
- A current-year synthesis tying the main threats to a defense stack. airia.com Article AI Security in 2026: Prompt Injection, the Lethal Trifecta, and How to Defend Airia
- Anthropic's launch post explaining the problem MCP was made to solve. anthropic.com Article Introducing the Model Context Protocol Anthropic
- The official introduction: what MCP connects, the USB-C comparison, and how clients and servers fit together. modelcontextprotocol.io Guide What is the Model Context Protocol (MCP)? Model Context Protocol
Playbooks
A goal, and the route through it a step at a time.