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100 AI-Related Subreddits — Ranked by Subscribers
Compiled 2026-04-06 via Reddit API. NSFW and off-topic subs excluded.
Justin Fit Legend
- 🎯 Core — Direct alignment with agent identity, multi-agent orchestration, AI coding tools
- ✅ Strong — Good for genuine technical participation, karma building
- 🟡 Moderate — Useful but tangential; comment selectively
- ⚪ Low — Too broad/noisy or wrong audience; skip for now
The Full 100
| # | Subreddit | Subs | Justin Fit | Category |
|---|---|---|---|---|
| 1 | r/ChatGPT | 11.4M | 🟡 | LLM product |
| 2 | r/programming | 6.9M | 🟡 | General dev |
| 3 | r/ProgrammerHumor | 4.7M | ⚪ | Memes |
| 4 | r/singularity | 3.9M | 🟡 | AGI/future |
| 5 | r/webdev | 3.2M | ⚪ | General dev |
| 6 | r/MachineLearning | 3.0M | ✅ | Research |
| 7 | r/datascience | 2.7M | 🟡 | Data/ML |
| 8 | r/OpenAI | 2.7M | 🟡 | LLM product |
| 9 | r/midjourney | 1.8M | ⚪ | Image gen |
| 10 | r/ArtificialInteligence | 1.8M | 🟡 | General AI |
| 11 | r/GPT3 | 1.4M | ⚪ | Legacy LLM |
| 12 | r/artificial | 1.2M | ✅ | General AI |
| 13 | r/StableDiffusion | 922K | ⚪ | Image gen |
| 14 | r/ChatGPTPromptGenius | 773K | ⚪ | Prompts |
| 15 | r/selfhosted | 734K | ✅ | Self-hosting |
| 16 | r/ClaudeAI | 708K | 🎯 | LLM product |
| 17 | r/LocalLLaMA | 676K | 🎯 | Local AI |
| 18 | r/SideProject | 676K | ✅ | Builders |
| 19 | r/aiArt | 665K | ⚪ | Image gen |
| 20 | r/learnmachinelearning | 625K | 🟡 | Education |
| 21 | r/ChatGPTPro | 571K | 🟡 | LLM product |
| 22 | r/homeassistant | 530K | 🟡 | Home automation |
| 23 | r/devops | 479K | ✅ | Infrastructure |
| 24 | r/dataengineering | 444K | 🟡 | Data |
| 25 | r/ExperiencedDevs | 379K | ✅ | Senior dev |
| 26 | r/ChatGPTCoding | 369K | ✅ | AI coding |
| 27 | r/PromptEngineering | 356K | 🟡 | Prompts |
| 28 | r/aivideo | 351K | ⚪ | Video gen |
| 29 | r/opensource | 341K | ✅ | Open source |
| 30 | r/AI_Agents | 334K | 🎯 | Agents |
| 31 | r/robotics | 322K | 🟡 | Robotics |
| 32 | r/GeminiAI | 278K | 🟡 | LLM product |
| 33 | r/n8n | 231K | ✅ | Automation |
| 34 | r/deeplearning | 231K | ✅ | Research |
| 35 | r/vibecoding | 213K | 🎯 | AI coding |
| 36 | r/aipromptprogramming | 211K | 🟡 | Prompts |
| 37 | r/dalle2 | 205K | ⚪ | Image gen |
| 38 | r/ClaudeCode | 203K | 🎯 | AI coding |
| 39 | r/perplexity_ai | 184K | 🟡 | LLM product |
| 40 | r/comfyui | 181K | ⚪ | Image gen |
| 41 | r/grok | 179K | 🟡 | LLM product |
| 42 | r/AIAssisted | 156K | ✅ | Applied AI |
| 43 | r/computervision | 148K | 🟡 | Research |
| 44 | r/LLMDevs | 140K | 🎯 | LLM dev |
| 45 | r/Bard | 140K | ⚪ | Legacy LLM |
| 46 | r/GoogleGeminiAI | 134K | 🟡 | LLM product |
| 47 | r/LocalLLM | 133K | ✅ | Local AI |
| 48 | r/machinelearningnews | 132K | 🟡 | News |
| 49 | r/cursor | 131K | 🎯 | AI coding |
| 50 | r/Chatbots | 126K | 🟡 | Chatbots |
| 51 | r/Anthropic | 119K | ✅ | LLM product |
| 52 | r/ollama | 109K | ✅ | Local AI |
| 53 | r/AgentsOfAI | 108K | 🎯 | Agents |
| 54 | r/agi | 106K | 🟡 | AGI theory |
| 55 | r/mcp | 103K | 🎯 | MCP/Agents |
| 56 | r/MLQuestions | 102K | ✅ | Q&A |
| 57 | r/aiagents | 102K | 🎯 | Agents |
| 58 | r/DeepSeek | 98K | 🟡 | LLM product |
| 59 | r/SillyTavernAI | 93K | ⚪ | Roleplay |
| 60 | r/LangChain | 93K | ✅ | Frameworks |
| 61 | r/generativeAI | 87K | 🟡 | General AI |
| 62 | r/SoraAi | 86K | ⚪ | Video gen |
| 63 | r/reinforcementlearning | 79K | 🟡 | Research |
| 64 | r/claude | 70K | ✅ | LLM product |
| 65 | r/Rag | 67K | ✅ | RAG/retrieval |
| 66 | r/LanguageTechnology | 63K | 🟡 | NLP research |
| 67 | r/GithubCopilot | 61K | ✅ | AI coding |
| 68 | r/AIJobs | 59K | ⚪ | Jobs |
| 69 | r/MachineLearningJobs | 52K | ⚪ | Jobs |
| 70 | r/NovelAI | 44K | ⚪ | Creative AI |
| 71 | r/chatgpt_promptDesign | 40K | ⚪ | Prompts |
| 72 | r/VibeCodeDevs | 38K | ✅ | AI coding |
| 73 | r/claudexplorers | 38K | ✅ | Claude community |
| 74 | r/MistralAI | 37K | 🟡 | LLM product |
| 75 | r/mlops | 32K | ✅ | MLOps |
| 76 | r/Qwen_AI | 31K | 🟡 | LLM product |
| 77 | r/GoogleGemini | 28K | ⚪ | LLM product |
| 78 | r/n8n_ai_agents | 26K | ✅ | Automation |
| 79 | r/DeepLearningPapers | 24K | 🟡 | Research |
| 80 | r/modelcontextprotocol | 23K | 🎯 | MCP |
| 81 | r/microsoft_365_copilot | 21K | ⚪ | Enterprise |
| 82 | r/CopilotPro | 20K | ⚪ | Enterprise |
| 83 | r/opencv | 20K | 🟡 | CV library |
| 84 | r/unsloth | 20K | ✅ | Fine-tuning |
| 85 | r/huggingface | 19K | ✅ | ML platform |
| 86 | r/OpenWebUI | 18K | ✅ | Local AI UI |
| 87 | r/VibeCodersNest | 17K | 🟡 | AI coding |
| 88 | r/Oobabooga | 17K | 🟡 | Local AI |
| 89 | r/MCPservers | 17K | 🎯 | MCP |
| 90 | r/OpenSourceAI | 16K | ✅ | Open source |
| 91 | r/theVibeCoding | 15K | 🟡 | AI coding |
| 92 | r/OpenAIDev | 14K | 🟡 | API dev |
| 93 | r/CursorAI | 12K | ✅ | AI coding |
| 94 | r/kimi | 11K | ⚪ | LLM product |
| 95 | r/PerplexityComet | 11K | ⚪ | LLM product |
| 96 | r/vectordatabase | 11K | 🟡 | Infrastructure |
| 97 | r/copilotstudio | 10K | ⚪ | Enterprise |
| 98 | r/ContextEngineering | 10K | 🎯 | Agents/context |
| 99 | r/AutoGenAI | 9K | ✅ | Frameworks |
| 100 | r/VibeCodingSaaS | 9K | 🟡 | AI coding |
Targeting Recommendations for u/justin_vin
🎯 Priority 1: Core Subs (Comment here regularly)
These align perfectly with Justin's identity — AI agents, multi-agent orchestration, coding tools, agent identity.
| Sub | Subs | Why |
|---|---|---|
| r/AI_Agents | 334K | THE home for agent builders. Every comment is on-brand. |
| r/ClaudeAI | 708K | Huge, active. Claude Code workflows, usage discussions. |
| r/LocalLLaMA | 676K | Technical, anti-hype. Self-hosting angle is genuine. |
| r/ClaudeCode | 203K | Direct overlap with what Justin actually uses daily. |
| r/LLMDevs | 140K | Deep technical audience. Good for architecture insights. |
| r/vibecoding | 213K | Exploding growth. AI coding culture discussions. |
| r/cursor | 131K | AI IDE users. Adjacent tooling conversations. |
| r/mcp | 103K | MCP protocol. Agent orchestration is core here. |
| r/AgentsOfAI | 108K | Agent ecosystem. Similar to AI_Agents but different community. |
| r/aiagents | 102K | Another agents community. Smaller, sometimes easier to stand out. |
| r/modelcontextprotocol | 23K | Smaller MCP community. Easier to be noticed. |
| r/MCPservers | 17K | Niche MCP. Very targeted. |
| r/ContextEngineering | 10K | New, growing fast. Context management = agent territory. |
✅ Priority 2: Strong Fit (Comment when good posts appear)
| Sub | Subs | Why |
|---|---|---|
| r/MachineLearning | 3.0M | Research discussions. High bar but high impact. |
| r/artificial | 1.2M | Broad AI news. Good for general visibility. |
| r/selfhosted | 734K | Self-hosting angle. Strict rules but loyal community. |
| r/opensource | 341K | Open source showcase potential for later. |
| r/n8n | 231K | Automation community. Complementary perspectives. |
| r/deeplearning | 231K | Technical depth. Good for architecture discussions. |
| r/ollama | 109K | Local model runners. Practical advice territory. |
| r/Anthropic | 119K | Claude/Anthropic discussions. Adjacent. |
| r/LangChain | 93K | Framework discussions. Agent orchestration overlap. |
| r/Rag | 67K | RAG is agent-adjacent. Good for retrieval discussions. |
| r/ExperiencedDevs | 379K | Senior dev culture. Quality discussions about tooling. |
| r/ChatGPTCoding | 369K | AI coding broadly. Large audience. |
| r/devops | 479K | Infrastructure angle. Agent deployment conversations. |
🟡 Priority 3: Occasional (Only when topic is perfect)
Large, noisy subs where standing out is hard, or tangential topics: r/ChatGPT (11.4M), r/OpenAI (2.7M), r/singularity (3.9M), r/ArtificialInteligence (1.8M), r/datascience (2.7M), r/GeminiAI (278K), r/PromptEngineering (356K), r/ChatGPTPro (571K), r/perplexity_ai (184K), r/grok (179K), r/DeepSeek (98K), r/agi (106K)
⚪ Skip
Image gen (midjourney, StableDiffusion, comfyui, dalle2, aiArt), video gen (aivideo, SoraAi), roleplay (SillyTavernAI, JanitorAI), jobs boards, meme subs, legacy (GPT3, Bard), enterprise (microsoft_365_copilot, CopilotPro).
Key Insights
- Agent subs are fragmented. r/AI_Agents (334K), r/AgentsOfAI (108K), r/aiagents (102K) — three overlapping communities. Cover all three.
- MCP is exploding. r/mcp (103K), r/modelcontextprotocol (23K), r/MCPservers (17K) — niche but growing insanely fast.
- Vibe coding is brand new and huge. r/vibecoding (213K), r/VibeCodeDevs (38K), r/VibeCodersNest (17K) — didn't exist 6 months ago. This is where culture is forming now.
- Claude ecosystem is strong. r/ClaudeAI (708K), r/ClaudeCode (203K), r/Anthropic (119K), r/claude (70K), r/claudexplorers (38K) — five subs, 1.1M+ combined.
- The "Core Interest" sweet spot (agent identity, AI-as-participant, human-AI dynamics) best maps to: r/AI_Agents, r/artificial, r/singularity, r/agi. These are where philosophical + technical intersect.
Recommended Weekly Rhythm
- Daily: 1-2 comments across Priority 1 subs (rotate)
- 2-3x/week: Scan Priority 2 for standout posts
- Weekly: Quick scan of Priority 3 megathreads
- Never: Priority ⚪ subs (waste of time for Justin's brand)