Multi-Agent Cold Email Campaign Generator with O3 Director & GPT-4.1 Specialists

Multi-Agent Cold Email Campaign Generator with O3 Director & GPT-4.1 Specialists

🌍 Overview

This workflow simulates a virtual sales & marketing team where each AI agent has a role:

A Director Agent (O3) who manages strategy. Multiple Specialist Agents (GPT-4.1-mini) for research, writing, personalization, deliverability, sequencing, and analytics. Everything is triggered automatically when a new chat message request comes in.

🟢 Section 1: Entry & Director

🔗 Nodes: 1️⃣ When chat message received (Trigger) 💬 Starts the workflow when a new request arrives (e.g., “Create a cold email campaign for SaaS CTOs”).

2️⃣ Outreach Director Agent (O3 model) 🎯 The “manager” agent. Decides what kind of campaign is needed and assigns tasks.

3️⃣ Think (Planning Node) 🧠 Helps the Director structure thoughts before delegating.

💡 Why useful?

Director uses O3 (strong reasoning model) only where strategy is needed → reduces cost. Provides a single point of control to coordinate all other agents.

🔵 Section 2: Specialist Agents

Each is powered by GPT-4.1-mini (cheaper + faster).

🔍 Prospect Research Specialist → researches target companies, roles, pain points. ✍️ Cold Email Copywriter → drafts subject lines, hooks, and persuasive body copy. 🎯 Personalization Specialist → inserts custom variables for each recipient. 📅 Email Sequence Strategist → designs follow-ups, timing, nurture flows. 📬 Email Deliverability Expert → ensures emails land in inbox, not spam. 📊 Outreach Analytics Specialist → tracks performance, runs A/B tests, optimizes campaigns.

💡 Why useful?

Each agent is a specialist → just like a real marketing team. Parallel execution** in n8n means faster results. Modular → you can remove or add more specialists.

🟣 Section 3: Execution Flow

Request comes in via chat trigger Director (O3) interprets and delegates → calls specialists as tools Specialists generate their pieces (research → copy → personalization → sequence → deliverability → analytics) Director integrates results into a cohesive cold email campaign

🟡 Section 4: Documentation & Notes

There are two Sticky Notes inside the workflow:

Header Note** → Support info + tutorials (YouTube & LinkedIn by Yaron Been) Main Note** → Full documentation (overview, use cases, cost optimization, tags)

📊 Final Overview

| Section | What Happens | Why It’s Useful | | -------------- | ------------------------ | --------------------------- | | 🟢 Director | Trigger + O3 strategy | Ensures smart coordination | | 🔵 Specialists | GPT-4.1-mini agents | Faster, cheaper execution | | 🟣 Flow | Delegation + Integration | Automated campaign building | | 🟡 Docs | Sticky Notes | In-workflow guide for users |

🚀 Benefits

✅ AI-powered cold email team without hiring humans ✅ Cost-optimized (O3 only for strategy, GPT-4.1-mini for tasks → ~90% cheaper) ✅ End-to-end coverage (research → writing → personalization → sequencing → analytics) ✅ Scalable: can run multiple campaigns in parallel ✅ Customizable: swap models, add tools, or expand team