8 GPT communities on Reddit
Updated 6/3/2026
r/PromptEngineering
on reddit
Prompt engineering is the application of engineering practices to the development of prompts - i.e., inputs into generative models like GPT or Midjourney.425K members
Forum47 views / month

r/ChatGPTPromptGenius
on reddit
ChatGPTPromptGenius: Master the Art of Prompting Learn to engineer better AI prompts together. We analyze structure, tone, and technique to help you get consistently better results from LLMs. Share prompts. Get feedback. Improve your craft. New here? Check the Wiki & Community Guide.827K members
Forum40 views / month

r/ChatGPT
on reddit
Subreddit to discuss ChatGPT and AI. Not affiliated with OpenAI. Thanks, Nat!11.7M members
Forum56 views / month

r/ArtificialInteligence
on reddit
The high-signal hub for artificial intelligence!2.0M members
ForumJobsCourses19 views / month

r/PromptDesign
on reddit
The art of prompting LLMs such as OpenAI GPT & Codex, Anthropic Claude, Google Gemini, GPT-OSS, Kimi. This is the largest community on Reddit when it comes to prompt design.40K members
Forum21 views / month

r/aipromptprogramming
on reddit
A place for all those who take speaking to AI with the same seriousness as programming.240K members
ForumCourses7 views / month

r/GPT3
on reddit
The subreddit for AI text generation technology1.4M members
Forum10 views / month

r/ChatGPTPro
on reddit
A community for putting ChatGPT and other language models to good use. Share workflows, ask questions, and learn from what others are trying—in work, study, and everyday life. Whether you’re getting started or exploring advanced uses, you’re welcome here. We’re an unofficial community whose name predates OpenAI’s ChatGPT Pro subscription and has no connection to the plan.620K members
Forum9 views / month
FAQ
Aggregate Stats
Community size
- Tiny: 0 communities (<20 members)
- Small: 0 communities (20-100 members)
- Medium: 0 communities (100-1,000 members)
- Large: 0 communities (1,000-10,000 members)
- Huge: 1 communities (10,000-100,000 members)
- Massive: 4 communities (100,000-1M members)
- Gigantic: 3 communities (1M+ members)


