r/PromptEngineering
417k members
r/PromptEngineering is a subreddit with 417k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses prompt, ai, chatgpt, tool, and tired.
Prompt engineering is the application of engineering practices to the development of prompts - i.e., inputs into generative models like GPT or Midjourney.
Popular Themes in r/PromptEngineering
#1
Solution Requests
: "Here's a prompt that writes speaker notes from finished slides so the talk track matches"
14 posts
#2
Advice Requests
: "Two years of prompt engineering for coding work, what actually moved the needle"
13 posts
#3
Ideas
: "Stop asking for a summary of your reports. Ask for a decision brief instead."
12 posts
#4
Pain & Anger
: "I spent days fixing the prompt when the real problem was the tool schema"
3 posts
#5
Opportunities
: "The problem with building too many useful AI automations"
2 posts
#6
News
: "GPT-6 Astra is being talked about as a major step toward the AGI era."
1 post
Popular Topics in r/PromptEngineering
#1
Prompt
: "Prompt mistakes that are quietly wasting your ChatGPT/Claude output (and the fix for each)"
47 posts
#2
Ai
31 posts
#3
Chatgpt
11 posts
#4
Tool
10 posts
#5
Tired
8 posts
#6
Engineering
7 posts
#7
Struggling
5 posts
#8
Gpt
5 posts
#9
Model
: "What is the smallest prompt regression set you trust after a Model switch?"
5 posts
#10
Course
3 posts
Flair Used in r/PromptEngineering
#1
General Discussion
: "Stop asking NotebookLM to "summarize" your sources. Do this instead for pro-level research."
38 posts
#2
Quick Question
: "What are the best and most up to date free Ai courses I can take that will help me stay ahead of the curve and get a good job in Ai?"
10 posts
#3
Tips and Tricks
: "Two years of prompt engineering for coding work, what actually moved the needle"
9 posts
#4
Prompt Text / Showcase
: "A system prompt for editing that fixes your writing without flattening your voice"
9 posts
#5
Requesting Assistance
: "A reusable prompt system that turns bullet notes into clean prose without the AI voice"
8 posts
#6
Tutorials and Guides
: "Training on Prompts"
6 posts
#7
Tools and Projects
: "Subagent Dispatch Economics skill.md"
6 posts
#8
Ideas & Collaboration
: "A system prompt that compresses a long report into an executive one-pager without losing the argument"
5 posts
#9
Self-Promotion
: "DBS Framework: a shared structure for reusable AI skills across Claude, ChatGPT, and Codex"
4 posts
#10
AI Produced Content
: "Broke Copilot Search by accident"
2 posts
Member Growth in r/PromptEngineering
Yearly
+187k members(81.6%)
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Last updated: September 18, 2026