OpenAI's coding agent, run at GPT-5.5 'extra high' — the course's pick when back-end correctness matters more than looks.

Pick this when

You need generated config or back-end code to be right first time — it produced the only n8n JSON with native Firecrawl nodes when Claude missed them.

What makes it different

Reasoning effort is a dial you turn up — 'extra high' was the setting that won both BC3 and BC4 comparisons

Live preview while building

Strong at structured output (JSON, workflow definitions) where a near-miss is a broken artifact

What it does

Generates and repairs structured config — n8n workflow JSON, schemas

Builds full projects with a live preview and pushes them to GitHub

Runs an error-fix loop: paste the failure, get the corrected artifact

What it does not do

Common wrong expectations

Doesn't design well — 'strong back end, average front end' in the bake-off

Doesn't replace review of generated automation; a wrong node is a silently broken workflow

Where it sits in a stack

The generate-the-config seat: workflow JSON, schemas, back-end logic. Pair with a vibe-coding platform for anything user-facing.

Shelf

Coding agents & editors

Our status · not-using

No current need for a second coding agent alongside the Claude stack.

For your projects

Worth remembering as the second opinion when a generated artifact has to be exactly right — the BC3 Firecrawl-node miss is the cautionary case for trusting one agent.

Freshness

current

Related tools

competes withClaude Codecomplementsn8n

claude-code: the head-to-head the course keeps running; Codex won on n8n JSON

n8n: 'use AI to build AI' — generate the workflow JSON, then import it

Every moment the course touched it (48)

SessionCoverageMomentWhat happened
Basecamp 3: Introduction to n8n — Idemonstrated2:30:17GPT-5.5 'extra high' produced the better JSON with native Firecrawl nodes; also the error-fix loop; trainer mixes Codex with n8n to build workflows
Basecamp 4: Introduction to n8n — IIdemonstrated2:21:38GPT-5.5 'extra high' with live preview; strong back end, average front end; repo pushed for learners; trainer's YC early access; also his n8n-local-install helper; has 'pets' feature
Community Session II: The Meta-Harness — Praful Thakkar on AgentGrid, Orchestrator-plus-Workers on One Canvas, Hand-Off Between Models, and OAuth Instead of API KeysdemonstratedOrchestrator pane, reasoning extra high
Build Reliable AI Apps Using LangGraph: The Travel Agent That Changes Its Mind — State, Nodes, Cycles, Interrupts, and Why the Vocabulary Is the SkilldemonstratedThe build environment. GPT-5.6 on medium, then Saul Light, then a data model at extra-high effort. Screenshot attached as context, plan mode used belatedly, and TWO accounts exhausted on usage limits during the session.
Office Hours V: Paul's Compliance Scanner Meets Firecrawl, Painkillers vs Vitamins, What a Real Second Brain Costs, and Why Selling Got HarderdemonstratedGitHub connection in plain English
Session 3: Building Elegant Landing Pagesdemonstrated0:09:38The session's workbench end-to-end: projects, GPT-5.5 reasoning tiers, files/browser/terminal panel, git auto-tracking, skill installs, automations, plugins; his team migrating to it from Claude Code
Session 4: How to Build Micro Prototypesdemonstrated1:37:55Open-existing-folder projects, 'enable git and push', run-the-server local preview (localhost:8080), commit/rollback demo, prompt queueing, multiple windows (4 apps at once)
Session 7: The Outreach Enginedemonstrated0:45:35Built both skills live ('GPT 5.5 extra high'); chosen because it writes files straight to his desktop — also organizes his desktop weekly
Session 8: The Conversion Playbookdemonstrated1:16:34Rebuilt his live /consulting page mid-session, created the /coaching short redirect, installed the tracking pixel (head injection), built the ICP-finder skill — all pushed live via GitHub
Session 14: Claude Code — Advanced Workflowsdemonstrated0:09:22His own studio shown: one autonomous 1d 1h 17m run on 'GPT 5.6 Sol' (as heard); YouTube API auto-publish configured
Session 15: Loop, Harness & Graph Engineering (posted as 'Securing Vibe-Coded Apps')demonstrated2:49:59/goal available; /loop not (as stated); starring as the different-model JUDGE in his graph — agent-evals bias argument
Session 18: Nano Banana + Veo 3.1 Multi-Shot Video — UGC Genie, an AI-UGC Product Built LivedemonstratedGPT-5.6 Sol light for speed; annotate tool, in-app browser (Atlas absorbed), side chat, agent's own cursor doing browser checks
Session 19: Content Strategy Pipeline — the YouTube Growth Stack, Built by an Agent Team of ChatsdemonstratedOrchestrator + sub-chats + worktrees + /side chat + status mini-sites; running on API credits, not the app plan
Session 20: Complete LinkedIn Agency Automation — Carousels + Newsletter from One Content SystemdemonstratedGPT-5.6 extra-high for planning, Sol light for speed; multi-chat delegation incl. the GitHub force-push chat
Session 21: Advanced Data Extraction from PDFs — Parsing, OCR, and the Token-Free ProductdemonstratedBuild agent: brainstorming skill, writing-plan skill, spec docs, thin adapter, three parallel chats by session's end
Session 22: Automate Admin Tasks — Advanced RAG (Enterprise 'Internal Perplexity' Built Live)demonstratedPrimary build agent; queueing, steering, side chats, Connections-to-VPS all demonstrated; worktrees puzzled over live
Session 23: Automating AEO/GEO — Audits, the File Layer, and Evidence-Led AI SearchdemonstratedThe working agent throughout — skills, audits, fixes, the tool build; GPT-5.6 tier switching live
Session 24: Building a Marketing OS — Sector-Agnostic Command Center on an Open-Source StackdemonstratedThe recovering agent: reads the handover, one-shots the mini-site + Velora build, drives PostHog/dashboard integration
Session 25: Product Hunt Launch Playbook — Engineering as Marketing, Rules That Get You Banned, and a Real Launch Scheduled Livedemonstrated1:17'Terra Lite' mode; built /apps page, brief, icon, embed
Session 26: Product-Led Activation & Lifecycle Growth — Turning a Free Tool into a Growth Machinedemonstrated0:41Primary build agent, 0.147->0.151, repeatedly stalling on stream
Session 27: Lead Magnets as Proof Artifacts — the Mega-Prompt Build, Four Live Magnets, and the Skill That Packages the WorkflowdemonstratedBuild engine for every magnet; Medium vs Ultra reasoning
Make Websites Agent-Ready with WebMCP: Front-End Tools for Browser Agents, the Tool Menu, MCP vs WebMCP, and a New Service Offerdemonstrated0:21Browser agent used for all three demo branches
Building a Mobile App with AI: React Native and Expo with Codex, One Screen at a Time, Clerk Login with Supabase Progress, and a Mascot That Makes It a Productdemonstrated0:12Coding agent for every build step; skill-creator used to make the mobile app skill
How to Build Vertical Harnesses: The Car Analogy, a Reusable Folder Template, and Live Builds that Print a Keycap, Replace a TV's Bloatware, and Reach Physical Devices Over SSH and Tailscaledemonstrated0:33:00CLI and app; main build tool; open-source harness
AI Sprint: The Hermes Agent — Day 1 (Always-On Agents, the Employee-on-Day-One System, and the Self-Improving Ghostwriter)demonstratedThe harness: installs Hermes, wires Ollama, researches file conventions, fixes keys, debugs, and finishes the image skill when Hermes stalls
Understanding Jev, the AI Built for Decisions (Sprint Day 2): Two Second-Brain Systems - a Leadership Self-Review Built Problem-First, and a Tag-Classifying Knowledge Base Where a Cheap Decision Model Replaces a Chat ModeldemonstratedProject on a new folder; docs checks; builds the MVP
AI Sprint: Build Your Own AI Skills - Day 1 (Solve It Three Times Before You Build the Skill, Prompt / Skill / Project Rule, the Video-Restoration Walkthrough, and the Two-Skill Voice-Then-Deslop Pipeline)demonstratedBoth worked examples run in Codex / the ChatGPT app with GPT-6 Luna, 6.1 Sol and Astra
Office Hours I: Vetting an Idea, Niching Against the Frontier Labs, and Paul's Aircraft-Parts App (PWA, and 'What If I Get Hit by a Bus')explainedRecommended over the $20 Claude plan for coding
Mentor Session XV: Selling Beats Building - Paul's Referral-Network Platform, Phone-Book Outbound, Give-First Communities, One Use Case Not a Hundred, and 'Know Thyself'explained1:08:00Harshit's daily agent on the Max plan
From Learner to Business Owner: an Alumnus on Interviewing the AI First, Criticising Plans, Free First Projects, and Working from Telegramexplained0:36His recommended builder for cost; used in the prompt and by his agent
Weekly AI Updates - October 2026 digest (Oct 7 so far: Gemini 4 'Argon', America.gov AI, Meta Muse, NVIDIA OpenShell, Grok Bot rewards, Copilot teammates, Claude Sonnet 5.5 deep dive; Mark Palmer's GBox showcase; Oct 14 so far: Google Health Coach, the White House frontier-AI accord, OpenAI Dev Day 2026, Anthropic's Oct 8 usage-policy update, Hark, Microsoft MAI voice models, Claude Haiku 5.5)explained
Community Session 1: Causa Claims — a Non-Coder's Five-Agent Construction-Claims Pipeline, the Gate as the Product, and What RAG Really Costsmentioned~$100/week subscription, hackathon requirement
Office Hours III: Backing Up Claude Chats with Obsidian, Bridging Chat and Cowork, What Fable Is For, and the Context-Rot ProblemmentionedToken-heavy; '@codex' as a Claude Code sub-agent, untested
Office Hours IV: PostHog over Plausible, the Launch-Fast Loop, Scraping Ethics, Agent Swarms with Memory, and Why You Never Give Credits Away FreementionedGPT-5.5 extra-high, unattended for hours
Office Hours XII: Building Paul's Second Brain — the Full Project-Management System, Livementioned0:37Runs keyless in Hermes - the asymmetry the harness fixes
Office Hours XIII: Ponytail, Ten Hermes Instances, a Web-MCP Verification Layer, and CodeRabbitmentioned0:3228-hour hackathon build; slow
Office Hours XIV: Story Before Landing Page, Scoping an Agentic-Web Pitch, the Cost of Compute, Automating Past Google, and the Idea Bankmentioned1:10Same; good compaction
Session 9: Introduction to Cursor & its principlesmentioned0:37:46This month's main; local-system access (no sandbox); can open its own browser past CAPTCHAs
Session 11: Overview of Claude Code & Key Concepts (Installs, Modes, Context Files, Skills, Hooks & MCPs)mentioned2:09:02Named competitor (OpenAI); can't nest inside Claude Code, though GPT models can be used within it
Session 30: C3 Town Hall — Four Cohort Products Under the Knife, Outcome Selling, and the Rest of the ProgrammementionedStephen runs a business premium plan alongside Claude Max; Syed uses it to verify skills before listing them.
Adding Beautiful Animations to Your App: Splash and Onboarding, State-Driven Micro-Interactions, an AI Layer That Never Blocks, PostHog Funnels and Feature Flags, and the Road to the Storesmentioned0:11Same
Founder Stack Ep02 with Tanmay: Nothing Starts Where It Ends - Win the King, Start as a Service and Productise as You Go, Tech Is Not a Moat, Where Your Buyers Already Are, and Throw More Dartsmentioned2:18:00
Founder Stack Ep03 with Shai Krishna: Why Wrappers Make AI Slop - CLAUDE.md as the Brain and DESIGN.md as the Art Direction, Founder-Led UGC with AI Avatars, Trial Reels, and Email Journeysmentioned0:47:00
Business - Five Steps to Paid Work, Specialise 90/10, Hormozi's Four Ways to Get Clients, the Free-Video Offer, Cold Outreach With Claude Cowork, the Pricing Calculator ($100/$200/$300 an Hour), a Website on Netlify in Half an Hour, and Keywording Stock Footage With ChatGPTmentionedNamed as the ChatGPT alternative to Cowork
AI Sprint: Meet GrokBot — Stop Prompting, Start Delegating (One Cloud Computer, a Chief of Staff, Four Specialist Bots, and the Reversible/Irreversible Rule)mentionedSupervised coding comparison
AI Sprint: The Hermes Agent — Day 2 (Loop Engineering: the Scheduling Loop, the Delegation Loop, and the Skill Auditor)mentionedSub-agent delegation target in Hermes' skill pack; 'Codex doesn't have sub-agents, I think' aside
AI Sprint: The Open Source Playbook — Day 2 (Weights 101, OpenCode, and the Subsidy Math)mentionedThe other 50%; also 'does parallel sub-agents very well'
AI Sprint: AI Evals & Reliability — Day 2 (Testing Systems That Never Answer Twice)mentionedThe other tool behind the certificate generator

← All tools by category