r/PromptEngineering
400k members
r/PromptEngineering is a subreddit with 400k members. The most common kinds of discussions are self-promotion and advice requests, and the community frequently discusses prompt, ai, chatgpt, tool, and engineering.
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
Self-Promotion
: "I built a free personal tutor claude skill and prompt because I was tired of "learning" things I couldn't remember a week later"
9 posts
#2
Advice Requests
: "5 prompts that actually changed my workflow (after testing 200+)"
7 posts
#3
Solution Requests
: "What is the best way to create a useful internal prompt library for a team?"
3 posts
#4
Ideas
: "One prompt change completely changed the quality of my SEO content"
3 posts
#5
Money Talk
: "DO NOT PAY FOR A SUBSCRIPTION"
2 posts
#6
Pain & Anger
: "The most annoying thing about building with AI is it changes code you didn't ask it to touch. Here's how I keep it in its lane."
1 post
Popular Topics in r/PromptEngineering
#1
Prompt
: "Can a Prompt trigger a movie’s narrative structure without naming the movie?"
49 posts
#2
Ai
: "The most annoying thing about building with Ai is it changes code you didn't ask it to touch. Here's how I keep it in its lane."
38 posts
#3
Chatgpt
13 posts
#4
Tool
10 posts
#5
Engineering
9 posts
#6
Tired
8 posts
#7
Struggling
6 posts
#8
Gpt
5 posts
#9
System
4 posts
#10
Course
3 posts
Flair Used in r/PromptEngineering
#1
General Discussion
: "I spent a full day watching every major AI agent tutorial in 2026 - here's what actually matters"
66 posts
#2
Prompt Text / Showcase
: "this my gold Claude.md instructions file"
33 posts
#3
Quick Question
: "Honest question: is "prompt engineering" still a skill, or did the models make it obsolete?"
24 posts
#4
Tools and Projects
: "I built a free personal tutor claude skill and prompt because I was tired of "learning" things I couldn't remember a week later"
21 posts
#5
Tips and Tricks
: "Fable 5's guardrails got bypassed in 48 hours. Here's what that actually means for anyone building customer-facing AI."
16 posts
#6
Requesting Assistance
: "How do I begin learning Prompt Engineering"
11 posts
#7
Tutorials and Guides
: "I make Claude predict how it's going to fail at my task before it starts. The failure list is more useful than the output."
9 posts
#8
Self-Promotion
: "I Built a Claude Code skill that makes Claude admit when it half-assed your task."
5 posts
#9
Prompt Collection
: "Used Claude Fable to strengthen my prompt library 526 prompts, 77 categories, free (no signup)"
4 posts
#10
Ideas & Collaboration
: "Built a 3-layer “session continuity” system for Claude — looking for ideas to make it more seamless"
4 posts
Member Growth in r/PromptEngineering
Yearly
+214k members(115.5%)
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Last updated: July 15, 2026