ChatGPT custom instructions tell the AI who you are, what you do, and how you want responses formatted, so every conversation starts with your context instead of a blank slate. On aidowith.me, the Practical Prompts route covers custom instructions as part of a 15-step prompting skills path. You'll set up your professional context (role, industry, common tasks), output preferences (tone, length, format), and constraints (what to avoid, how to handle ambiguity). The route shows you what to include (your role, key tools you use, output format preferences) and what to skip (overly long backstories, conflicting instructions that cancel each other out). You'll also see how custom instructions interact with conversation-level prompts and when one overrides the other. Well-configured instructions cut prompt setup time by 50-70% because you stop re-explaining your context at the start of every chat. The full route takes about 75 minutes.
Last updated: April 2026
The Problem and the Fix
Without a route
- You re-explain your role, industry, and preferences at the start of every ChatGPT conversation
- Your custom instructions are either empty or a wall of text that ChatGPT mostly ignores
- You've tried setting up instructions but the output didn't change, so you gave up
With aidowith.me
- Custom instructions that give ChatGPT your context automatically in every session
- Clear framework for what to include and what to leave out so nothing gets ignored
- 50-70% less time spent on prompt setup because your context is always loaded
Who Builds This With AI
Marketers
Content, campaigns, and briefs done in hours instead of days.
Sales & BizDev
Prep calls, draft outreach, research prospects in minutes.
Managers & Leads
Reports, presentations, and team comms handled faster.
How It Works
Define your professional context
Write a concise description of your role, industry, daily tasks, and the tools you use. AI helps you distill this into effective instructions.
Set output preferences
Specify tone, length, format (bullets vs. prose), and what to avoid. The route shows you which preferences ChatGPT follows reliably.
Test and refine
Run your new instructions against real tasks. The route shows you how to spot when instructions conflict and how to fix priority issues.
Set up your ChatGPT custom instructions
15 steps. About 75 minutes. Better output in every ChatGPT session from now on.
Start This Route →What You Walk Away With
Define your professional context
Set output preferences
Test and refine
50-70% less time spent on prompt setup because your context is always loaded
"Finally set up custom instructions properly. Now ChatGPT responds like it's been working with me for months instead of meeting me for the first time."- Senior analyst, management consulting firm
Questions
Your role and industry, the types of tasks you use ChatGPT for, your preferred output format (length, tone, structure), and things to avoid. Keep it under 1,500 characters. The route provides a template and real examples for different roles: marketers, analysts, HR professionals, managers, and founders.
Yes. Custom instructions are available on both free and paid ChatGPT plans. You access them through Settings in the ChatGPT interface. The route walks through the setup process step by step. The feature works the same way regardless of your subscription level.
Yes, and the route covers this. If your custom instructions say 'always respond in bullets' but your prompt asks for a paragraph, ChatGPT may do either. The route shows you how to structure instructions as defaults that your prompts can override, so you get consistent behavior.