Spanish AI Detector

Check Spanish essays, articles and documents for signs of AI-generated writing. Explore sentence-level results while keeping your interface in English.
96.0%
Accuracy
#1 AI detector
by MGTD Benchmark
Full Spanish
support
See accuracy benchmarks →
characters (min 200): 0/500000
PDF, DOCX, TXT
Deep AI Scan
find out which part of text seems AI-generated with our sentence-level segmentation.
Plagiarism check
detect plagiarized content by comparing your text against online sources.
Grammar check
find grammar and spelling mistakes in your text.
4000words left

Take a closer look at your text

Deep AI scan
Plagiarism checker
Grammar checker
Shareable reports
File upload
App feature screenshot
Try It’s AI now
4000 words for free
Go to App

Why It's AI?

Simple
Accurate
Affordable
AI detection forSpanish writing
Check Spanish text directly and review results sentence by sentence. The MGTD comparison shown here is a general benchmark comparison; see the Spanish-specific evaluations below.
MGTD Roc-Auc Score
It's AI
92.0
GPTZero
88.7
Originality
82.5
ZeroGPT
71.4
Full Spanish Support
Check Spanish text in its original form, with an English interface and sentence-level analysis. See benchmarks →
96.0%
accuracy
Accuracy on 11,997 Spanish samples in DetectRL-X. Results on individual texts can vary.
crown
False Positive Rate
False positives on human-written Spanish text: 0.72% on CAES.

Accuracy on Spanish text

How we test

Detection accuracy

96.0%

Share of Spanish texts we classified correctly across 11,997 human and AI writing samples.

DetectRL-X dataset

False positives

0.72%

Share of human-written Spanish texts our detector flagged as AI-generated.

CAES dataset

How to check Spanish text for AI

Use the original Spanish passage, including its accents and punctuation.

  1. Add your text

    Paste a passage in Spanish or upload a PDF, DOCX or TXT file.

  2. Run a deep scan

    Choose Deep AI Scan and select Run scan to open the analysis in the app.

  3. Review flagged sentences

    Read each highlighted sentence in context. Drafts and sources can help explain how a passage was written.

When to check Spanish writing

Spanish essays and assignments

Check essays and coursework written in Spanish. Read the highlighted sentences alongside the full assignment, drafts and references.

Articles and publishing

Review Spanish news articles, blog posts and editorial submissions. Use the result to identify passages for discussion with the writer before publication.

Content across Spanish-speaking markets

Check Spanish business and marketing copy in its original form. Regional vocabulary and editing can affect a text, so interpret each result in context.

AI detection in your workflow

Connect your Spanish AI checker to the tools you already use
API
Add Spanish AI text detection to your applications with our API.
View API docs
Canvas LMS
Scan student submissions for AI right inside Canvas SpeedGrader.
See how it works
Chrome Extension
Highlight any text and get instant answers — no need to leave the page
Try extension
Moodle Integration
Coming soon
Ensure academic integrity by verifying AI-generated content in Moodle
Set up Moodle
ChatGPT Plugin
Analyze and verify AI-generated content directly within ChatGPT
Use plugin
Zapier Integration
Connect AI detection with thousands of apps for automated workflows
Set up integration
Python SDK
Check Spanish text with It’s AI from your Python code.
Get started

Spanish AI detection for teams

Review Spanish assignments, publishing drafts and business content with tools for educators and multilingual teams.
Pay as you go
GPTZero
Originality
ZeroGPT
It's AI
MGTD Roc-Auc Score
88.7
82.5
71.4
92.0
API availability
Batch processing
API Rate Limit (texts/minute)
2500
500
250
2000
Min text length to check (chars)
250
500
250
200
Max text length to check (chars)
250,000
None
500,000
500,000
Annual (save 20%)
Monthly
Free
⁦$0⁩
/month
Cancel anytime
Free plan includes:
feature icon
4000 words
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File upload
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3 deep scans
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10,000 characters per scan
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Chrome Extension
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Usage statistic
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PDF certificates
Get started
Plus
⁦$7⁩
⁦$9⁩/month
Save ⁦$24⁩/year
|
Billed ⁦$84⁩/year
Everything from Free, plus:
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150,000 words
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10 files per upload
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50,000 characters per scan
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Deep Scan mode
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Plagiarism Checker
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Unlimited grammar checks
Get started
Premium
⁦$12⁩
⁦$15⁩/month
Save ⁦$36⁩/year
|
Billed ⁦$144⁩/year
Everything from Plus, plus:
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300,000 words
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25 files per upload
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100,000 characters per scan
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ChatGPT plugin
Get started
Pro
⁦$20⁩
⁦$25⁩/month
Save ⁦$60⁩/year
|
Billed ⁦$240⁩/year
Everything from Premium, plus:
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500,000 words
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50 files per upload
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500,000 characters per scan
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365 day history
Get started
Enterprise
From
⁦$95⁩
/month
Save ⁦$300⁩/year
|
Billed ⁦$1,140⁩/year
Get started
Everything from Pro, plus:
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1M+ Words & Unlimited Top-Ups
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365 day history
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250 files per upload
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⁦$9.50⁩ / 100,000 extra words
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Priority support
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API access
Educational Institution
⁦$5⁩
/student per year
No monthly subscription
Everything from Pro, plus:
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500k words/month per teacher
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Give Pro subscription to every teacher
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All-in-one student authenticity checker
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Google Classroom integration included (soon)
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Moodle integration included (soon)
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Priority support

Check your Spanish writing

Check for AI
Find plagiarism
Improve texts
originality

What our users say

Really love the detailed reports. They save a lot of time when it comes to polishing creatives after you make them with AI help.
Brendan Kelly's avatar
Brendan Kelly
Marketer at Mochi Health
It's AI became an irreplaceable part of my work—much more accurate than other AI detectors. Now each text where I use ChatGPT or similar services, I check with It's AI and it shows which part of text looks artificial, so that I can rewrite it.
Flora Gevorgyan's avatar
Flora Gevorgyan
Copywriter at TotoGaming
Great tool for improving my reports and technical specifications before giving them to the team. Simple and efficient—just like it should be.
Dora Akulshina's avatar
Dora Akulshina
Product manager at INCYMO.A

Spanish AI Detector FAQ

Questions about checking Spanish text?