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r/OntologyEngineering

5K members. The best post we have captured here reached 164 upvotes, which works out to 33 per 1,000 members.

33peak upvotes per 1,000 members
5Kmembers
164best post
38most comments
100posts we track

Open r/OntologyEngineering on Reddit β†—

What actually lands here

The mix of post types among everything we have captured. Posting a link where almost nothing but images lands is wasted effort, and this is the fastest way to see it.

38% 27% 19% 12%
Text 38% Link 27% Image 19% Question 12% Video 3% Gallery 1%

The topics it labels

Flairs are the community's own categories, and the closest thing a subreddit has to telling you what it wants.

Agentic Enablement 15 Business Semantics 9 Canonical Data Model 7 Epistemology 5 Human as a Semantic Layer 4 Metacognition 4 Code Precision vs High Semantics 2 Deterministic Extraction 1 Meta 1 OBDA 1

What the ceiling looks like

The biggest posts we have captured here. Links go to the original on Reddit.

Bro is about to discover OWL

↑ 164 πŸ’¬ 5 image 2026

AI engineering is rediscovering ontology engineering the hard way

↑ 137 πŸ’¬ 10 image 2026

Karpathy's new "LLM Wiki" pattern is converging on exactly what this community has been building

↑ 106 πŸ’¬ 19 link 2026

Bigger context windows won’t fix your semantics

↑ 94 πŸ’¬ 18 image 2026

My current approach to engineering the r/ontologyengineering ontology

↑ 82 πŸ’¬ 8 image 2026

LLMs are just giant probability machines pretending to think

↑ 78 πŸ’¬ 38 text 2026

We need to stop using LLMs to extract knowledge graphs when deterministic parsing exists

↑ 61 πŸ’¬ 8 image 2026

How have you personally used (agentic) ontologies recently?

↑ 48 πŸ’¬ 16 image 2026

Your semantic layer used to be a person, you just automated them out of the loop.

↑ 47 πŸ’¬ 4 text 2026

ontology based data access at Anthropic

↑ 46 πŸ’¬ 6 gallery 2026

Communities its size

Within four times the member count either way, so the comparison is fair. Sorted by upside.

See what is climbing here before you write

ViralHunt tracks Reddit and eight other networks, records how every post grows, and puts what is taking off in front of your team in one list.

Start free β†’

Every figure here is what ViralHunt has captured from r/OntologyEngineering, not everything the community has ever posted. We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong. Peak per 1,000 members is computed the same way for every community listed. See how we measure.