What's the main difference between TextSight and Originality.ai?

Both ship strong AI detection at similar self-reported accuracy (TextSight: up to 99.2% internal benchmark; Originality: 99.41%). The product difference is the humanizer. TextSight ships a one-click rewrite in the same scan; Originality is detection-only and you need a second tool (typically Undetectable.ai) to fix flagged sentences. Originality includes a fact-checker that TextSight does not. See /originality-ai-alternative/ for the full comparison.

How does TextSight compare to GPTZero?

GPTZero is built around educator workflows (LMS integrations, bulk grading, multilingual classroom features). TextSight is built around writer workflows (detect-then-fix in one tool, three humanizer intensity modes). Detection accuracy is comparable. If you're grading student submissions through Canvas/Moodle, GPTZero is still the better fit. If you're a writer checking your own drafts, TextSight is closer to the actual loop. See /gptzero-alternative/ for the full comparison.

How does TextSight compare to Copyleaks?

Copyleaks is an enterprise stack: AI detection + plagiarism + LMS integrations + 30+ languages + credit-based pricing. TextSight bundles AI detection + humanizer at flat subscription pricing (no credits). Copyleaks is the better fit for enterprise compliance and multilingual classrooms; TextSight is more direct for solo writers and agencies. See /copyleaks-alternative/ for the full comparison.

Is TextSight better than Undetectable.ai?

Different products. Undetectable is a humanizer with no detector — you rewrite, then verify on a separate tool. TextSight bundles both, with a Humanization Score that updates after every rewrite so you can stop guessing whether your changes worked. If you only need raw humanization volume and don't care about verification, Undetectable's per-word pricing can be cheaper at the entry tier. See /undetectable-ai-alternative/ for the full comparison.

Which AI detector is the most accurate?

All five tools we compare cluster within 1-2 percentage points on their self-reported benchmarks: TextSight up to 99.2% (internal benchmark), Originality 99.41%, Copyleaks 99.12%, Winston AI 99.98%, GPTZero ~98%. The differences are within statistical noise on most independent test corpora — accuracy is rarely the deciding factor. The workflow after the verdict is what differs. AI detection is probabilistic — see /accuracy-methodology.html for caveats.

Which tool should an SEO agency pick?

If you need detection + humanization in one workflow + API access at a reasonable price, TextSight Business ($29.99/mo, 10K API calls/mo) is built for that. Originality has an Enterprise-only API at $179/mo. Copyleaks has bulk-grading workflows that suit education more than agencies. For solo SEO writers, Pro ($19.99/mo) covers detection + humanizer for unlimited scans. See /for-seo-agencies/ for the agency-specific workflow.

Can I use TextSight alongside another tool?

Yes — many users do. Common pairings: TextSight (detect+humanize) + GPTZero (educator workflows), TextSight + Copyleaks (compliance reporting), or TextSight + Originality (fact-checking). They're sold separately and there's no conflict in running both. The case for full switching is when the second tool's role can be absorbed into TextSight's workflow without losing essential features.

2026 Comparison

TextSight vs Originality, GPTZero, Copyleaks & Winston AI

We compared the 5 most-used AI content tools across 24 features, 4 pricing tiers, and the question every writer actually asks: can it help me fix what it flags?

The short answer: only one of them can.

Last updated: May 2026

Pricing and features reflect publicly available information from each vendor as of May 2026 and may change. We review competitor data monthly.

Try TextSight Free See the Comparison ↓

TextSight scoring an AI-generated paragraph at 95/100 with one-click Humanize button

Key findings (May 2026)

TextSight bundles a detector and a humanizer in one workflow. Most major tools on this comparison ship either detection (Originality, GPTZero, Copyleaks, Winston) or rewriting (Undetectable) — not both in the same scan.
Self-reported accuracy is a wash. All five tools claim 98–99.98%. The differentiator isn't detection — it's the workflow after the verdict.
Cheapest entry tier: TextSight Starter at $7.49/month annual billing. Cheapest popular tier per scan: GPTZero Premium at ~$10.40/month with $0.017/scan.
Most expensive per scan: Copyleaks Personal at $0.28/scan (only ~25K words/month for $13.99). Followed by Undetectable.ai's 10K plan at $0.25/scan.
Free tier winner for pure detection volume: GPTZero (10,000 words/month free). For detection + humanizer combined in one free tier: TextSight (3 free scans/day, no signup needed).

The Finding

Detector. Humanizer. Or Both.

After comparing five tools side-by-side, the AI content market splits into three categories. TextSight sits in the third — bundling detection and humanization into the same workflow.

🔍

Detection Only

They tell you it's AI. Then they stop. You still have AI text on your screen.

Originality.ai
GPTZero
Copyleaks
Winston AI

✨

Humanizer Only

They rewrite your text — but never tell you what was wrong. You're guessing.

Undetectable.ai

🎯

Detector + Humanizer

Catch every AI flag. Fix it in one click. No tab-switching, no second tool.

TextSight.ai

Only one in this category

Accuracy Claims

What Each Tool Claims

Self-reported accuracy from each vendor's own marketing pages. All five cluster within 1-2 percentage points. How we measure ours →

Up to 99.2%

TextSight.ai

internal benchmark

99.41%

Originality.ai

~98%

GPTZero

99.12%

Copyleaks

99.98%

Winston AI

All five tools cluster within 1-2 percentage points on self-reported accuracy. The differentiator isn't detection accuracy — it's what the tool does after the detection. Independent benchmark study coming Q3 2026.

Real Pricing Math

Cost Per Scan

At a typical 500-word average scan, here's what each tool's "popular" tier costs you per use.

Tool	Plan	$/mo	Words/mo	Scans @ 500w	$/scan
TextSight	Pro	$14.99	Unlimited scans	∞	$0.00
Originality.ai	Pro	$14.95	200,000	400	$0.037
GPTZero	Premium	$10.40	300,000	600	$0.017
Copyleaks	Personal	$13.99	~25,000	~50	$0.280
Winston AI	Essential	$10.00	80,000	160	$0.063
Undetectable.ai	10K (humanizer only)	$5.00	10,000	20	$0.250

Math: monthly word allowance ÷ 500-word scan size = scans available. Cost ÷ scans = $/scan. TextSight Pro charges for unlimited scans, so per-scan cost trends to zero with usage.

Why It Matters

Built for writers, not detectors.

Every other tool on this page sells you a verdict. "This is 87% AI." Then they leave. You still have the 87% AI text on your screen, the deadline still ticking.

TextSight finishes the job. The same scan that flags your text shows you exactly which sentences are flagged, ranks them by severity, and offers a one-click Humanizer with three intensity modes — Light, Balanced, Maximum.

No tab switch. No second tool. No copy-paste. Detection and the fix in one workflow.

Try the Humanizer Free

TextSight AI Humanizer with Light, Balanced and Maximum modes, showing live progress on analyzing patterns, restructuring sentences, and checking AI score

Side-by-Side

Full Feature Table

Every feature, every tier, every yes/no. Pricing reflects annual billing rates as of May 2026.

Feature	TextSight.ai	Originality.ai	GPTZero	Copyleaks	Winston AI
Core Detection
AI Content Detection	✓	✓	✓	✓	✓
AI Humanizer (one-click rewrite) Bundled	✓ 3 modes	✗	✗	✗	✗
Humanization Score (0-100) Bundled	✓	✗	✗	✗	✗
Sentence-level highlights	✓	✓	✓	✓	✓
Plagiarism Checker	✓	✓	✓	✓	✓
Grammar & readability	✓	✓	✓	✓	✓
Self-reported accuracy methodology →	Up to 99.2%	99.41%	~98%	99.12%	99.98%
Pricing & Limits
Free Plan	✓ 3 scans/day	✗	✓ 10K w/mo	Trial only	14-day trial
Entry tier (annual)	$7.49/mo Starter	$14.95/mo Pro	$10.40/mo Premium	$13.99/mo Personal	$10/mo Essential
Most popular tier	$14.99/mo Pro Unlimited scans	$14.95/mo Pro 200K w/mo	$10.40/mo Premium 300K w/mo	$13.99/mo Personal ~25K w/mo	$16/mo Advanced 200K credits
Enterprise / top tier	$59.99/mo	$179/mo	$20.10/mo Pro	$74.99/mo Pro	$26/mo Elite
Integrations & Access
API Access	✓ Business+ ($29.99/mo)	Enterprise only ($179/mo)	Paid add-on	✓ Pro ($74.99/mo)	✓ Advanced+
Bulk file scan	✓	✓	✓ Up to 250 files	✓	✓
Chrome extension	✗	✓	✓	✓	✓
Scan history retention	Unlimited (Enterprise)	30 days / 365 (Ent)	Limited	90 days	Limited

Scan History

Scan once. History forever.

Every TextSight scan is saved. View past results, see how scores changed over time, and re-Humanize old drafts with one click — directly from the history view.

GPTZero, Copyleaks, and Winston AI either don't save your past scans or limit history to 7-30 days. Originality.ai keeps history for 30 days standard, 365 days only at the Enterprise tier ($179/mo).

TextSight Pro keeps 30 days. Business: 90 days. Enterprise: unlimited.

Decision Guide

When to Choose Each Tool

Honest take. Each tool is built for a different user. Pick the one that fits how you work.

Choose TextSight if…

You write content that needs to pass AI detection — and you don't want to spend 20 minutes copy-pasting between a detector and a separate humanizer for every draft.

Choose Originality.ai if…

You're an SEO agency that needs plagiarism + AI detection + fact-checking in one pass for client deliverables. You don't write the content yourself.

Choose GPTZero if…

You're an educator running high volumes of free scans. The free tier is the most generous in the market at 10,000 words/month.

Choose Copyleaks if…

You need enterprise compliance, LMS integration, and you can justify the $74.99/mo Pro tier. Overkill for individual writers.

Choose Winston AI if…

You scan very high volumes (500K+ words/month) and don't need a humanizer. Best $/scan ratio at scale among detection-only tools.

Choose Undetectable.ai if…

You only want a rewriter, not a detector. Risky workflow — you'll never know if your rewrite passed without running a separate detector after.

FAQ

Common Questions

Is Originality.ai more accurate than TextSight?

Both tools cluster around 99% on self-reported accuracy. The real difference: when Originality flags your text, you're done. When TextSight flags your text, you get a one-click Humanizer that rewrites the flagged sentences in three intensity modes. We're not competing on detection — we're competing on what happens after.

Why is GPTZero cheaper at $/scan?

GPTZero's Premium tier offers 300K words/month for ~$10.40 — about 600 scans of 500-word drafts at $0.017/scan. Cheaper per detection. But it has no humanizer, so you'll need a second tool ($5-31/mo at Undetectable.ai) the moment you need to fix a flagged text. Total: $15-41/mo vs TextSight's $14.99 with both built in.

Does TextSight have a free plan?

Yes. 3 scans/day with up to 10,000 characters per scan, no signup required for the first 3. The free tier includes the Humanization Score and sentence-level detection — same engine as Pro.

Can I just use Undetectable.ai instead?

You can — but Undetectable rewrites without telling you what was wrong. You're guessing whether the new text will pass detection. Most writers end up running their Undetectable output through a separate detector (Originality, GPTZero) to verify. That's two tools, two subscriptions. TextSight does both in one pass.

Which tool has the best free tier?

For pure detection volume: GPTZero (10,000 words/month free). For detection + humanizer: TextSight (3 scans/day free with full Humanization Score and the AI Humanizer in Light mode). Originality.ai has no free tier; Copyleaks and Winston AI offer trials with credit-card capture.

Which tools have API access?

TextSight (Business+ tiers, 10K-50K calls/mo). Copyleaks (Pro tier, $74.99/mo). Winston AI (Advanced+). Undetectable.ai (all tiers). Originality.ai (Enterprise only, $179/mo). GPTZero (paid add-on, contact sales).

Is the comparison fair? You built TextSight.

Pricing data is straight from each vendor's pricing page (May 2026). Accuracy claims are self-reported by each vendor on their own marketing pages. We're transparent about being TextSight: the comparison is opinionated, not neutral. Our differentiator is shipping both a detector and a humanizer in one workflow — built so you can detect, understand, and improve in the same pass.

The Verdict

What Makes Us Different

Three things that set our workflow apart in 2026.

📊

Humanization Score

A 0–100 Humanization Score that tells you how human your text reads, not just a binary "AI / not AI" verdict. So you know exactly how close you are to passing.

✨

One-Click Humanizer

Three intensity modes — Light, Balanced, Maximum. Rewrites only the sentences flagged by detection. Other tools detect and stop; we close the loop.

💰

One Subscription, Both Tools

$14.99/mo Pro = unlimited scans + humanizer + scan history. Replacing both Originality ($14.95) + Undetectable ($9.99) saves you $9.95/month and one tab in your browser.