GPTPrompts.AI

Custom
Instructions.

Stop repeating yourself. Master ChatGPT Custom Instructions to create personalized, persistent prompts that apply to every conversation automatically.

01 — Intro

What are ChatGPT Custom Instructions?

Custom Instructions are a ChatGPT feature (available to Plus, Pro, and Team users) that define two key elements applied to all new chats:

Field 1: What ChatGPT should know about you

Your background, profession, preferences, constraints, or context (e.g., "I'm a marketing manager for a SaaS startup targeting small businesses").

Field 2: How ChatGPT should respond

Desired tone, format, length, rules (e.g., "Always use bullet points, keep responses under 300 words, avoid fluff").

These persist across all your chats, eliminating the need to restate context. Users report 40-60% reduction in prompt length and 2-3x faster workflows.

02 — Setup

Step-by-Step Setup for Custom Instructions

  1. 1

    Open ChatGPT and click your profile icon (bottom-left sidebar)

    Select "Customize ChatGPT" or go to Settings > Personalization > Custom Instructions.

  2. 2

    Toggle Custom Instructions ON

    If not already enabled, activate the feature.

  3. 3

    Fill Field 1: "What would you like ChatGPT to know about you?"

    Include role, goals, audience, tools, constraints. Keep under 1,500 characters.

  4. 4

    Fill Field 2: "How would you like ChatGPT to respond?"

    Specify format, tone, rules. Bullet points, tables, or structured outputs work best.

  5. 5

    Click Save and test in a new chat

    Refine iteratively based on outputs.

04 — Templates

Copy-Paste Templates by Use Case

Content Creators & Marketers

Field 1 (About you):

"I'm a content marketer for tech startups. I write blog posts, social media, and email newsletters targeting developers and founders. Always optimize for SEO with primary keywords like [LIST KEYWORDS]. My brand voice is helpful, witty, and actionable."

Field 2 (How to respond):

"Structure responses as: 3-sentence intro hook, bullet points or numbered steps, 1-2 actionable takeaways. Keep under 400 words, use engaging headers, end with a CTA. Include 2-3 internal link ideas."

Business Professionals & Entrepreneurs

Field 1 (About you):

"I'm a SaaS founder with a remote team of 10. Focus on growth hacking, customer support, and operations. Use tools like Notion, Zapier, HubSpot. Budget-conscious; prioritize free/low-cost tactics."

Field 2 (How to respond):

"Respond in business-professional tone: concise, data-driven, realistic. Format as: Summary (1 para), Pros/cons table if comparing, Step-by-step implementation, Risks and mitigations. Avoid hype; cite sources if possible."
FAQ

Frequently Asked Questions