AI Tool

UnslopAI Review

UnslopAI is a tool designed to rewrite text to maintain the user's voice while correcting grammar and reducing AI influence.

shipped Sep 9, 2026voicefreemium

voicecodewriting

Why it matters

1Offers a freemium model with a Free plan including 5 rewrites.

2Provides a 'slop score' to quantify the percentage of machine-typical phrasing removed.

3API access is available with the Pro Plan, which costs $19 per month or $190 per year.

4Supports various content types, including newsletters, articles, and LinkedIn posts.

About UnslopAI

Business Model

Subscription SaaS

Platforms

Web, API

Target Audience

Writers, marketers, professionals

Pricing Plans

Free

$0 / one-time

• 5 free rewrites
• No card required

Small

$4.99/month

• For emails, LinkedIn posts, cover letters

Pro

$19/month

• For articles, blog posts, newsletters
• Includes API and MCP access

Small

$49/year

• For emails, LinkedIn posts, cover letters

Pro

$190/year

• For articles, blog posts, newsletters
• Includes API and MCP access

API Docs

Specs

API Docs

View Documentation →

API Available

Yes, public API

overview

What is UnslopAI?

UnslopAI is a text refinement AI tool developed by UnslopAI that enables writers, marketers, and agencies to humanize AI-generated text. It detects and rewrites AI-generated patterns to restore human cadence, structure, and word choice, while preserving the original factual meaning. The tool assigns a 'slop score' to quantify the percentage of machine-typical phrasing removed, offering transparency into the editing process. Its Terms of Service were last updated on June 10, 2026, and its API reference on August 1, 2026, indicating ongoing development.

features

Key Features of UnslopAI

UnslopAI provides several features designed to refine AI-generated text and maintain a human voice, ensuring authenticity and quality in written content.

Rewrites text to maintain the user's unique voice.
Corrects grammar and improves sentence structure.
Offers a 'slop score' to measure and quantify AI influence in text.
Enables rewrites across various text types, including articles, emails, and social media posts.
Includes API access for integration into existing workflows.
Fixes cadence, structure, and lexical density without altering original meaning.
Provides before/after diffs to audit changes made during the rewrite process.

use cases

Who Should Use UnslopAI?

UnslopAI is primarily targeted at professionals and agencies who utilize AI for drafting but require a human-sounding final output. Its capabilities are tailored for specific content creation and refinement needs.

Content, Marketing, and SEO Agencies: For polishing AI-drafted content before client delivery or publication, ensuring a human tone and higher quality output.
Freelance Writers: To refine AI-assisted drafts, improving cadence, structure, and word choice while preserving their unique writing voice.
Businesses Scaling Content Output: Funded startups and regional brands aiming for a consistent, human-sounding brand voice across their AI-assisted content.
Developers Documenting Code: To ensure technical documentation maintains clarity and a human tone, avoiding robotic phrasing.
Individuals Using AI for Drafting: For anyone who uses AI to generate initial drafts but needs to ensure their writing sounds authentic and human for newsletters, posts, emails, and cover letters.

how to use

How to Use UnslopAI

UnslopAI allows users to input text for refinement, providing a 'slop score' and a rewritten version. The process is designed to be straightforward for immediate application.

1Navigate to the UnslopAI web interface or integrate via API.
2Paste or input the AI-generated text into the designated editor.
3Initiate the rewrite process to analyze and refine the text.
4Review the 'slop score' to understand the level of AI influence removed.
5Examine the before/after diffs to audit specific changes made to the text.
6Copy the humanized text for publication or further editing.

pricing

UnslopAI Pricing & Plans

UnslopAI operates on a freemium model, offering various tiers to accommodate different usage levels, with subscriptions processed by Stripe. Quotas are hard caps, meaning users must upgrade or wait for the next period if limits are reached.

Free Plan: $0, includes 5 rewrites with no credit card required, allowing users to test the engine.
Small Plan: $4.99 per month or $49 per year, includes 250 rewrites per month, suitable for shorter content like emails and LinkedIn posts.
Pro Plan: $19 per month or $190 per year, includes API access and 600 rewrites per month, designed for longer content such as articles and blog posts.

Pros

+Provides a measurable 'slop score' to quantify AI influence removed from text.
+Preserves the original meaning and writer's voice during the rewrite process.
+Offers API access for integration into existing content workflows (Pro Plan).
+Includes before/after diffs for auditing changes, enhancing transparency.
+Supports a freemium model, allowing users to test the service with 5 free rewrites.
+Specifically targets and corrects AI-generated patterns, improving human readability.

Cons

−Rewrite limits on paid plans may cap throughput for high-volume content agencies.
−Accuracy in languages other than English may vary.
−The 'Agency Audit' by InnovaAI scored it 5.5/10 for agency resale, suggesting potential limitations for some agency models.
−No explicit integrations with popular CMS or writing tools are detailed beyond API access.

Policies

Pricing Page

View Pricing→

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UnslopAI vs Competitors

UnslopAI positions itself as a specialized tool for humanizing AI-generated text, differentiating itself from broader grammar and style checkers by focusing specifically on removing 'AI slop' and preserving the writer's voice.

GrammarlyOn Stork

Offers advanced grammar, spelling, punctuation, clarity, engagement, and delivery suggestions, including tone detection.

While Grammarly provides extensive grammar and style suggestions and can detect tone, it doesn't offer a specific "slop score" to measure AI influence in the same way UnslopAI does.

ProWritingAidOn Stork

Provides in-depth reports on various writing aspects like style, readability, consistency, and repeated phrases, helping users refine their unique voice.

ProWritingAid offers more detailed stylistic analysis than UnslopAI, which can help maintain voice, but it lacks UnslopAI's explicit "slop score" for AI influence.

QuillBotOn Stork

Primarily a paraphrasing tool that can rewrite text in various modes (e.g., Standard, Fluency, Creative, Formal) to adjust tone and style.

QuillBot excels at rewriting and offers different modes to influence style, which can help align with a desired voice, but it doesn't have the specific grammar-first approach or the "slop score" for AI influence that UnslopAI emphasizes.

LanguageToolOn Stork

An open-source grammar, style, and spell checker that supports many languages and offers suggestions for improving text quality.

LanguageTool provides robust grammar and basic style checking, and its open-source nature is a significant advantage for free users, but it doesn't offer the nuanced voice preservation features or the "slop score" for AI influence found in UnslopAI.

Hemingway EditorOn Stork

Highlights common writing issues like passive voice, adverbs, and complex sentences to make writing clearer and bolder.

Hemingway Editor focuses on improving readability and conciseness, which can contribute to a strong, consistent voice, but it doesn't offer comprehensive grammar correction or the "slop score" for AI influence that UnslopAI provides.

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