Multi-Agent Cold Email Campaign Generator with O3 Director & GPT-4.1 Specialists
π 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.
π’ Section 1: Entry & Director
π Nodes :
1οΈβ£ When chat message received (Trigger)
π¬ Starts the workflow when a new request arrives (e.g., βCreate a cold email campaign for SaaS CTOsβ).
2οΈβ£ Outreach Director Agent (O3 model)
π― The βmanagerβ agent. Decides what kind of campaign is needed and assigns tasks.
3οΈβ£ Think (Planning Node)
π§  Helps the Director structure thoughts before delegating.
π‘ Why useful?
- Director uses O3 (strong reasoning model) only where strategy is needed β reduces cost.
- Provides a single point of control to coordinate all other agents.
π΅ Section 2: Specialist Agents
Each is powered by GPT-4.1-mini (cheaper + faster).
- π Prospect Research Specialist β researches target companies, roles, pain points.
- βοΈ Cold Email Copywriter β drafts subject lines, hooks, and persuasive body copy.
- π― Personalization Specialist β inserts custom variables for each recipient.
- π
 Email Sequence Strategist β designs follow-ups, timing, nurture flows.
- π¬ Email Deliverability Expert β ensures emails land in inbox, not spam.
- π Outreach Analytics Specialist β tracks performance, runs A/B tests, optimizes campaigns.
π‘ Why useful?
- Each agent is a specialist β just like a real marketing team.
- Parallel execution in n8n means faster results.
- Modular β you can remove or add more specialists.
π£ Section 3: Execution Flow
- Request comes in via chat trigger
- Director (O3) interprets and delegates β calls specialists as tools
- Specialists generate their pieces (research β copy β personalization β sequence β deliverability β analytics)
- Director integrates results into a cohesive cold email campaign
π‘ Section 4: Documentation & Notes
There are two Sticky Notes inside the workflow:
- Header Note β Support info + tutorials (YouTube & LinkedIn by Yaron Been)
- Main Note β Full documentation (overview, use cases, cost optimization, tags)
π Final Overview
| Section | What Happens | Why Itβs Useful | 
|---|
| π’ Director | Trigger + O3 strategy | Ensures smart coordination | 
| π΅ Specialists | GPT-4.1-mini agents | Faster, cheaper execution | 
| π£ Flow | Delegation + Integration | Automated campaign building | 
| π‘ Docs | Sticky Notes | In-workflow guide for users | 
π Benefits
- β
 AI-powered cold email team without hiring humans
- β
 Cost-optimized (O3 only for strategy, GPT-4.1-mini for tasks β ~90% cheaper)
- β
 End-to-end coverage (research β writing β personalization β sequencing β analytics)
- β
 Scalable : can run multiple campaigns in parallel
- β
 Customizable : swap models, add tools, or expand team