AI writer for Reddit
Reddit is the hardest platform to use AI on. Redditors can smell an AI-written comment from three subreddits away, and they will downvote you into the shadow realm. Here's how to use AI on Reddit anyway — without getting banned or ratio'd.
What AI is actually good for on Reddit
- Structuring a long post before you rewrite it in your voice
- Summarising a long thread so you can find the actually-interesting comments
- Drafting a comment that responds to a specific point you want to raise
- Translating a foreign-language sub's post so you understand what's being discussed
What AI is bad for on Reddit
- Writing posts you don't rewrite. They read stiff, mods will remove.
- Drafting comments in casual subs (r/AskReddit, r/funny, r/showerthoughts) — casual voice is hard for AI to nail.
- Anything remotely resembling promo. Reddit auto-mod will remove.
- Bulk-commenting to farm karma. Immediate ban.
The workflow that actually works
- Read 5 top posts and 10 top comments in the sub you're posting in. Notice: how long are they? What tone? Do they use emojis? Do they cuss? Do they mention their own experience?
- Open WriterPi. Attach the sub's front page or the specific post you're replying to.
- Ask for a draft with specific constraints: "Draft a Reddit comment for r/[sub] in reply to this post. Match the sub's voice: informal, first-person, mentions personal experience, no marketing language. Under 4 sentences."
- Read the draft. Rewrite it in your own words. Add specifics from your life. Remove any sentence that sounds vaguely corporate.
- Post.
Sub-voice tone guide
Different subs, different rules:
- r/AskReddit, r/showerthoughts — Casual tone, one line, personal.
- r/ChangeMyView, r/philosophy — Detailed tone, structured, cites reasoning.
- r/programming, r/webdev — Concise + technical. Never marketing-speak.
- r/relationships, r/AITAH — Friendly + Empathetic. Long-form is fine.
- r/personalfinance — Professional + Detailed. Specifics + numbers.
- r/marketing, r/SaaS — More promo-tolerant BUT read pinned rules first.
Prompt templates that actually work
For post drafts
"Write a Reddit post for r/[subname]. Topic: [what you want to say]. Match the sub's voice: [informal / technical / storytelling]. Include a specific personal experience. Under [word limit]. End with a question that invites discussion."
For comment drafts
"Reply to this post as a Reddit comment. My angle: [your point]. Include one specific example. Match the sub's tone. Under 3 sentences. Don't start with 'This' or 'Great post'."
For post summaries (when you're catching up)
"Summarise the top 3 things being discussed in this thread. Bullet points. Include the top comment's take."
Signs your AI comment reads like AI (and what to fix)
- Starts with "This is an interesting perspective" → rewrite to start with your actual point.
- Contains "In my opinion" or "It's important to note" → cut. Redditors just say it.
- All sentences roughly the same length → break it up. Real humans write short. Sentences. Sometimes fragments.
- Uses the phrase "leverage" or "utilize" → nobody on Reddit says these words. Use "use".
- Perfectly balanced pros/cons in 4 sentences → real Redditors have opinions. Pick one side.
The one-question test before you post
Read the draft out loud. If you sound like a LinkedIn thought leader, delete it and start over. Reddit rewards specificity, opinion, and self-deprecation. It punishes polished neutrality.