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Sightengine

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APIs for content moderation, AI-generated media detection, and image analysis.

FreemiumAI Content DetectorsAI Developer Tools

Verified Nov 2, 2026

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Sightengine website screenshot

What is Sightengine?

Sightengine provides AI APIs for moderating images, videos, text, and audio. Developers can use it to screen user uploads, enforce platform rules, and detect unwanted content across more than 150 visual moderation classes, including violence, hate, weapons, and self-harm. Text checks also cover personal information, links, and usernames, while OCR and QR moderation help identify restricted material embedded in visual content.

Developers integrate the service using API keys, SDKs, and documentation. Beyond moderation, Sightengine offers detection for AI-generated images, videos, speech, and music, alongside deepfake detection. Its image analysis tools assess quality, validate profile pictures, estimate age groups, and detect presentation attacks such as faces displayed on screens or printed photographs. Similarity search and custom disallow lists help platforms identify duplicates and recurring unwanted uploads.

A continuing free plan supports testing and proof-of-concept work. Paid subscriptions add higher usage allowances and capabilities, with overage charges based on operations consumed. Starter supports videos up to 50 MB without live streaming; Pro raises the limit to 500 MB and adds live-stream moderation, audio moderation, liveness checks, and AI speech and music detection.

What can Sightengine do?

  • Multimodal content moderation

    Screen images, videos, text, and audio, with more than 150 visual classes for unwanted or restricted content.

  • AI-generated media detection

    Detect AI-generated images, videos, speech, and music, as well as face swaps and other deepfake manipulation.

  • Embedded text and QR checks

    Extract and moderate text and QR codes in images and videos to flag contact details, abusive links, and restricted content.

  • Profile and liveness checks

    Validate profile photos, estimate age groups, and detect spoofing attempts involving screens, printouts, or masks.

  • Duplicate and similarity search

    Find similar images and videos and maintain custom disallow lists to block recurring unwanted uploads.

  • Image quality assessment

    Identify blurriness, poor lighting, and framing problems to help filter low-quality images.

Who is Sightengine for?

Platform developers
Integrate automated moderation and media analysis into apps that accept user-generated content.
Trust and safety teams
Screen uploads for policy violations, spam, embedded contact information, and manipulated media.
Marketplaces
Check listing media for restricted products, unwanted content, and attempts to move transactions off-platform.
Identity and onboarding teams
Use profile validation and liveness detection during onboarding, KYC, and account recovery.

How much is Sightengine?

Official pricing

  • Starter

    $29/mo

  • Pro

    $99/mo

  • Enterprise

    See website

  • Free Tier

    Free

Free plan: 2,000 operations per month, capped at 500 per day, for basic content moderation and AI detection.

Frequently asked questions

Is there a free plan?

Yes. The Free Tier includes 2,000 operations per month, capped at 500 per day, for basic content moderation and AI detection. It has no time limit.

What counts as an operation?

Usage depends on the request type; running nudity detection on one image counts as one operation. API responses report the number of operations consumed.

What happens if I exceed my paid allowance?

Starter and Pro charge $0.002 per additional operation beyond their included allowances. Only requests that return a successful response count toward usage.

Which plans support video and live streams?

Starter supports videos up to 50 MB but not live streams. Pro supports videos up to 500 MB and includes live-stream moderation; Enterprise offers custom limits.

Can I change or cancel my subscription?

Upgrades take effect immediately. Downgrades and cancellations take effect at the end of the current subscription period.

Are images sent to human moderators?

Sightengine processes images without human moderators and does not share them with third parties.

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