Best AI Subreddits

Largest communities first, with fastest-growing subreddits highlighted separately.

Best AI Reddit Communities

This guide highlights the largest and fastest-growing ai subreddits for AI builders, researchers, and enthusiasts. FreeSubStats tracks 147 AI & Machine Learning communities with 13,228,601 combined members, so the list uses live subreddit analytics instead of a static editorial snapshot.

AI & Machine Learning subreddits show ↗ +0.82% average daily growth and ↗ +2.64% average weekly growth. Net tracked movement is +45,904 members today and +141,528 members this week.

For the full sortable directory, open the AI & Machine Learning subreddit analytics page.

How This List Is Built

Largest ai subreddits are ranked by current member count

Fastest-growing communities are highlighted separately by weekly growth rate

Each entry links to a live analytics page with history, related subreddits, and current stats

AI Subreddit Snapshot

Tracked Subreddits

147

Total Members

13,228,601

Daily Growth

↗ +0.82%

Weekly Growth

↗ +2.64%

Largest AI Subreddits

r/singularity

Everything pertaining to the technological singularity and related topics, e.g. AI, human enhancement, etc.

Members

3,912,129

Weekly

↗ +0.09%

r/artificial

Reddit’s home for Artificial Intelligence (AI)

Members

1,289,190

Weekly

↗ +0.33%

r/learnmachinelearning

Welcome to r/learnmachinelearning - a community of learners and educators passionate about machine learning! This is your space to ask questions, share resources, and grow together in understanding ML concepts - from basic principles to advanced techniques. Whether you're writing your first neural network or diving into transformers, you'll find supportive peers here. For ML research, /r/machinelearning For resume review, /r/engineeringresumes For ML engineers, /r/mlengineering

Members

648,554

Weekly

↗ +0.34%

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.

Members

384,848

Weekly

↗ +0.80%

r/AI_Agents

A place for discussion around the use of AI Agents and related tools. AI Agents are LLMs that have the ability to "use tools" or "execute functions" in an autonomous or semi-autonomous (also known as human-in-the-loop) fashion. Follow our event calendar: https://lu.ma/oss4ai Join us on Discord! https://discord.gg/6tGkQcFjBY

Members

380,669

Weekly

↗ +1.42%

r/isthisAI

Welcome to r/isthisAI. This is the Reddit community to ask whether or not a picture, video or anything is AI-generated.

Members

335,675

Weekly

↗ +2.51%

r/GeminiAI

Gemini AI is a neural network that has been trained on a massive dataset of text and code. This dataset includes books, articles, code repositories, and other forms of text. https://www.youtube.com/watch?v=_TVnM9dmUSk

Members

326,327

Weekly

↗ +1.48%

r/ClaudeCode

a community where claude code enthusiasts build, share, and solve together.

Members

307,373

Weekly

↗ +2.84%

r/JanitorAI_Official

Welcome to the official JanitorAI subreddit! JanitorAI is a platform for creators building immersive worlds and readers seeking living stories, we are where human creativity meets AI magic. Welcome to the future of interactive entertainment.

Members

222,557

Weekly

↗ +0.46%

#10