Best Undetectable AI Alternatives for Fake Image Detection
14 AI tools that can replace Undetectable AI for detecting AI-generated images, ranked by how closely they match. The percentage is a match score, not a popularity score.
Replacing: Undetectable AI — Undetectable AI bundles an AI text detector, an AI humanizer and an AI image detector intoInput: text, images, documents · Output: text, data
1
Illuminarty detects whether an image or a piece of text was created by AI.
Input: text, images · Output: data
Free planFrom $10/moAPI
85%Strong alternative
00
How the score adds up
- Built for Fake Image Detection (its core category)70/70
- Shares Undetectable AI's other goals6/10
- Feature description similarity10/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
2
This tool verifies whether an image was created by artificial intelligence or a human, delivering a confidence score and detailed reasoning in under 10 seconds
Input: images · Output: text
Free planFrom $19/moAPI
79%Strong alternative
00
How the score adds up
- Built for Fake Image Detection (its core category)70/70
- Shares Undetectable AI's other goals3/10
- Feature description similarity6/20
Shared goals 1 of the 3 we tag Undetectable AI for
Fake Image Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
3
ZeroGPT processes text quickly to detect AI-generated content
Input: text, images, video, documents · Output: text
From $7.99/mo
57%Limited overlap · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals10/10
- Feature description similarity5/20
Shared goals 3 of the 3 we tag Undetectable AI for
AI DetectionFake Image DetectionHumanizing Text
Also tagged for
Plagiarism Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
4
Pangram Labs makes an AI detector that checks whether text was written by a person or generated by a language model.
Input: text, images, documents · Output: data
Free planFrom $20/moAPIBrowser extension
64%Partial replacement — covers the main need with gaps · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity15/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Also tagged for
Plagiarism Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
5
Winston AI is an AI content detector and plagiarism checker built for education, SEO, and writing.
Input: text, images, documents · Output: data
Free planFrom $10/moAPITeams
63%Partial replacement — covers the main need with gaps · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity13/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Also tagged for
Plagiarism Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
6
AI or Not is an AI detector that checks whether images, text, video, audio and music were generated by AI, and flags deepfakes.
Input: text, images, audio, video · Output: data
Free planFrom $5/moAPITeams
61%Partial replacement — covers the main need with gaps · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity12/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
7
55%Limited overlap · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity6/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
8
Copyleaks is a content authenticity platform that checks whether text was written by AI and whether it copies existing sources.
Input: text, images, video, documents, code · Output: data
From $13.99/moAPI
58%Limited overlap · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity9/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Also tagged for
Plagiarism Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
9
isFake.ai is a tool designed for detecting AI-generated content across different media types, including text, images, audio, and videos. It employs proprietary algorithms to analyze for characteristic
Input: text, images, audio, video · Output: data
Free planFrom $3.99/mo
57%Limited overlap · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity8/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
10
Your voice, synthesized
Input: text, images, audio, video · Output: audio, data
Free planFrom $280/moAPI
48%Limited overlap
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals3/10
- Feature description similarity3/20
Shared goals 1 of the 3 we tag Undetectable AI for
Fake Image Detection
Also tagged for
Text to SpeechVoice Cloning
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
11
Hive Moderation is an AI content moderation provider built for trust and safety teams at enterprise scale.
Input: text, images, audio, video · Output: data
APITeams
53%Limited overlap · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity4/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
12
Reality Defender detects deepfakes and AI-manipulated media across audio, video and images.
Input: images, audio, video · Output: data
Free planAPITeams
53%Limited overlap · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity4/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
13
Sensity AI is a forensic deepfake detection service that analyzes videos, images and audio for signs of AI manipulation.
Input: images, audio, video, web pages · Output: documents
APITeams
53%Limited overlap · same core category as Undetectable AI
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals7/10
- Feature description similarity3/20
Shared goals 2 of the 3 we tag Undetectable AI for
AI DetectionFake Image Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
14
Sightengine is an API service for moderating and analyzing user-generated content.
Input: text, images, audio, video · Output: data
Free planFrom $29/moAPITeams
49%Limited overlap
00
How the score adds up
- Offers Fake Image Detection as a secondary capability42/70
- Shares Undetectable AI's other goals3/10
- Feature description similarity4/20
Shared goals 1 of the 3 we tag Undetectable AI for
Fake Image Detection
Also tagged for
API IntegrationImage Recognition
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
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At a glance: top Undetectable AI alternatives for Fake Image Detection
| Tool | Match | Input | Output | Pricing | Free plan | Rating | Category |
|---|---|---|---|---|---|---|---|
| Illuminarty | 85% | text, images | data | From $10/mo | Yes | — | AI Image Detector |
| AI Image Detector | 79% | images | text | From $19/mo | Yes | — | AI Image Detector |
| ZeroGPT | 57% | text, images, video, documents | text | From $7.99/mo | No | — | AI Detector |
| Pangram Labs | 64% | text, images, documents | data | From $20/mo | Yes | — | AI Detector |
| Winston AI | 63% | text, images, documents | data | From $10/mo | Yes | — | AI Detector |
| AI or Not | 61% | text, images, audio, video | data | From $5/mo | Yes | — | AI Detector |
Frequently asked
What is the best Undetectable AI alternative for detecting AI-generated images?
Illuminarty (85% match) is the closest alternative to Undetectable AI for detecting AI-generated images: Illuminarty detects whether an image or a piece of text was created by AI. AI Image Detector (79% match) and ZeroGPT (57% match) come next.
Is there a free alternative to Undetectable AI for detecting AI-generated images?
Yes. 9 of the 14 ranked alternatives have a free plan or free tier, including Illuminarty, AI Image Detector, Pangram Labs.
How is the match percentage calculated?
It measures how much of Undetectable AI's job a tool can take over for detecting AI-generated images: shared core category, how many of the same use cases it covers and how similar its feature set is. Popularity and ratings never change the percentage; they only break ties in the order. Lists are recomputed nightly and reviewed by editors for the most-visited tools.
How this list is ranked
The match score measures how much of Undetectable AI's job each tool can take over when the goal is detecting AI-generated images: shared core category, how many of the same use cases it covers, and how similar its feature set is. Popularity and ratings do not change the score; they only break ties in the order.
Lists are recomputed nightly from the live catalog and reviewed by our editors for the most-visited tools. Sponsored placements are marked and sit outside the ranking.