Best subreddits for AI tools
AI tools have the largest audiences on Reddit right now: r/ChatGPT and r/OpenAI for the mainstream, r/ArtificialInteligence and r/artificial for general AI conversation, r/LocalLLaMA for the technical crowd that runs models themselves, and r/AI_Agents for the agent-builder niche.
These rooms drown in AI-tool launches daily, so a bare launch post is invisible. What works: a genuinely novel demo, an honest benchmark against the tool everyone already uses, or solving a thread's specific problem on the spot.
The communities
| Subreddit | Members | How to use it |
|---|---|---|
| r/ChatGPT | 11.6M | The mainstream AI room. Demos that make people say 'wait, it can do that?' travel far. |
| r/MachineLearning | 3.1M | Researchers and practitioners. Papers and rigorous evals only, but immense credibility if you clear the bar. |
| r/OpenAI | 2.8M | Follows the frontier. Tools building on the latest models find early adopters here. |
| r/ArtificialInteligence | 1.9M | General AI discussion (yes, the name is misspelled). Broad reach for accessible content. |
| r/artificial | 1.3M | The older general-AI room. News and discussion; tolerant of thoughtful product talk. |
| r/LocalLLaMA | 795k | Runs models locally, allergic to hype. If your tool works offline or open-weights, lead with that. |
| r/AI_Agents | 418k | Agent builders comparing frameworks and workflows. Small, dense with exactly the right users for agent tooling. |
Member counts read from Reddit on 2026-08-09. Every community verified to exist. Each subreddit sets its own promo rules; check them with the rules checker before posting.
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