Slop is low-quality, machine-generated content published without meaningful human review. Technically coherent, contextually useless — the AI equivalent of spam.

If Google results feel worse, if LinkedIn reads like a single author with a thousand accounts, if customer support emails answer questions nobody asked — you've been swimming in it. The term was popularized by Simon Willison in 2024 and named Merriam-Webster's Word of the Year in 2025, drawing a deliberate parallel to spam: mass-produced, unwanted, and corrosive to every channel it floods.

Machine intelligence made content generation nearly free. When production cost hits zero with no quality gate, volume explodes and average quality collapses. The output isn't wrong the way a hallucination is wrong — it's just empty. SEO articles, social posts, product descriptions, support emails: all slop candidates.

For your organization, slop is a spectrum. Every AI-generated output sits somewhere between "machine-assisted and human-refined" and "shipped without review." The difference is the gate: editorial standards, evals, and the discipline not to publish everything the model produces. Companies that treat generation as the start of the workflow build trust. Companies that treat it as the end train their audience to ignore them.

At the ecosystem level, slop feeds model collapse — future models training on low-quality AI output and degrading as a result. Vibe coding creates the same risk in engineering. Generation without judgment is just expensive noise.