Free AI Writing Tool

AI Slop Detector
Sentence-by-Sentence Writing Signal Map

Paste your text once. Every sentence is checked against recognizable AI writing patterns, so you see exactly what sounds generated and why.

  • Private & zero data retention
  • Sentence-level pattern analysis
  • In-card apply & recheck
Try example:
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Why sentence-by-sentence analysis beats an overall AI score

Free AI writing and slop detector that evaluates text sentence by sentence against the Wikipedia AI writing rubric.

Why it matters

Traditional AI detectors give you a single probability percentage that tells you almost nothing useful. You paste an article, a detector claims it is '74% AI', and you are left wondering which phrases triggered the score or whether it is just a false positive. AI writing patterns do not infect an entire document evenly; they cluster in specific formulaic transitions, significance puffery, and empty buzzwords.

The AI Slop Detector breaks your writing down sentence by sentence. It runs a fixed set of pattern checks built from the Wikipedia 'Signs of AI writing' rubric and, when our self-hosted classifier is running, adds a DeBERTa model score for each sentence. It highlights exactly which sentences sound machine-generated and marks the specific phrases responsible.

What the tool does

You can review flagged sentences individually, see the matched tells, read why they sound synthetic, and edit them directly in the review card. Choose 'Apply & recheck' to immediately test whether your revision cleared the AI signal while keeping the rest of your document intact.

This approach focuses on style and clarity rather than witch-hunting authorship. Human prose can occasionally slip into cliché, and great writing is about cutting fluff, not chasing a single score.

Sentence 2 of 5 · Flagged (Score 3/4)Significance puffery

"In today's ever-evolving digital landscape, artificial intelligence stands as a testament to human ingenuity."

Matched tell: "stands as a testament"✓ In-card revision available
Example sentence review card with matched tell highlight and revision guidance.

Terms worth knowing

Significance puffery
Inflating ordinary events into world-changing milestones with phrases like 'stands as a testament to' or 'pivotal turning point'.
Empty buzzwords
Decorative vocabulary favoured by LLMs such as 'delve into', 'tapestry of', 'beacon', 'foster', and 'transformative journey'.
Superficial balance
Generic, non-committal pros-and-cons hedges like 'While X offers Y, it is crucial to remember Z'.
Unnatural formality
Mechanical connective transitions like 'Moreover,', 'Furthermore,', 'In conclusion,', and 'It is worth noting that'.
Classifier score
When the self-hosted DeBERTa classifier is running, each sentence also gets its probability of being machine-written. Pattern checks alone report no confidence number.

Frequently asked questions

Short answers for the decisions that usually come up after a first run.

What is an AI slop detector?

A tool that scans text sentence by sentence for recognizable patterns, clichés, and tropes common in machine-generated writing, highlighting the specific phrases that deserve human revision.

How does the AI Slop Detector analyze text?

It splits your text into sentences and runs each one through pattern checks built from the Wikipedia 'Signs of AI writing' project: significance puffery, empty buzzwords, superficial balance, and formulaic structure. When our self-hosted classifier is running, it adds a model score per sentence. Your text is checked on our servers and is not stored.

Why not just ask a chatbot?

A chatbot can score the same text differently from one run to the next and rarely shows its reasons. The pattern checks here give the same result for the same sentence every time and point at the exact phrase that triggered it.

Does a high score mean text is 100% AI generated?

No. The detector flags recognizable writing patterns, not proof of authorship. Human writers often use clichés and formal transitions, which is why Wikipedia and linguists warn against using any detector as sole proof.

What is the Wikipedia Signs of AI Writing rubric?

A collaborative guideline developed by Wikipedia editors identifying common stylistic tells in LLM prose, including significance puffery, superficial balance, empty buzzwords, and formulaic paragraph structures.

How does 'Apply & recheck' work?

When a sentence is flagged, you can revise it directly inside the review card. Clicking 'Apply & recheck' runs the same checks on just that revised sentence, including the classifier when it is running. If the sentence comes back clean, the main passage updates immediately.

Is there a word limit or cost?

No cost, no login, and no account required. You can scan passages up to 10,000 words at a time.