r/PromptEngineering↗
Prompt engineering is the application of engineering practices to the development of prompts - i.e., inputs into generative models like GPT or Midjourney.
426k subscribers669 posts / mo in Sep 2026 (incl. ~1% by known bots)479 authors / mosince 2021
r/PromptEngineering has 426k members (+64% over the last 12 months). It gets about 669 posts a month from 479 people. Top topics: Claude Code, ChatGPT Issues and LLMs and AGI Progress.
When to post on r/PromptEngineering
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How r/PromptEngineering has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/PromptEngineering
Top topics
Share of the subreddit's posts
- Claude Code3.0%
- ChatGPT Issues1.4%
- LLMs and AGI Progress1.2%
- ChatGPT & AI Developments0.6%
- AI in Coding0.5%
Brands people mention
Most-mentioned brands and sites, last 12 months
- ChatGPT
- Apple
- Claude Code Docs
- Medium
- GenTube
Everything else about r/PromptEngineering
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research