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r/PromptEngineering

Founded February 2021 · Public — anyone can post

Updated Aug 30

Prompt engineering is the application of engineering practices to the development of prompts - i.e., inputs into generative models like GPT or Midjourney.

Members

411,401

411K

Online now

not captured in the last snapshot

Posts per day

17.9

from the last 100 posts, spanning 5.5 days

Comments per post

no sample yet

Growth · 7d

not enough history yet

Growth · 30d

not enough history yet

Promo tolerance

not assessed yet

Last post

Aug 30

sampled Aug 30

Distinct posters

80%

of the last 100 posts

Tracking since Aug 30 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.

Member growth

Tracking since Aug 30 — growth charts appear after a week of history.

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r/PromptEngineering — frequently asked

How many members does r/PromptEngineering have?

r/PromptEngineering has 411,401 members as of our most recent crawl on Aug 30. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.

Is r/PromptEngineering growing?

We don't have 30 days of snapshot history for r/PromptEngineering yet, so we're not going to invent a growth number. We've been tracking it since Aug 30; the chart fills in as history accumulates.

How active is r/PromptEngineering?

Around 17.9 posts per day, measured from the newest 100 posts on Reddit, which span 5.5 days. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.

When was r/PromptEngineering created?

r/PromptEngineering was founded in February 2021 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.

Who posts in r/PromptEngineering?

Of the last 100 posts we sampled, 80% came from distinct accounts; the newest was published Aug 30. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.

Can I promote my product in r/PromptEngineering?

We don't have a promo-tolerance read for r/PromptEngineering yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.

How do I monitor r/PromptEngineering for mentions?

Hit Watch on this page. Prowlo starts crawling r/PromptEngineering into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.

Can my AI agent read r/PromptEngineering's stats?

Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/PromptEngineering's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.

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r/SaaS · 4m ago

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r/PromptEngineering: 411K members, 17.9 posts/day (Aug 2026)