Sightengine review

Sightengine is an API company, so it suits developers more than people checking a single photo, although its site has a demo upload box. The Free tier gives 2,000 operations a month, capped at 500 a day and 1 request per second, and includes AI image detection. Starter costs $29 a month for 10,000 operations, with extra operations at $0.002, and adds deepfake detection and AI video detection for files up to 50 MB. Pro at $99 a month adds AI speech and music detection and live-stream moderation. The detection page lists the generators it identifies, including DALL-E, Firefly, Flux, Midjourney and Stable Diffusion. Because the same API also handles nudity, text and quality checks, platforms can run moderation and AI detection in one call. Non-developers will find it harder to use than a consumer tool. We compared documented features and published prices.

Who it is for

Developers adding AI image checks to an app or platform

Price

Free API tier with 2,000 operations a month; Starter $29 per month.

$29 /mo 10,000 operations / month
Quoted from the vendor pricing page on November 11, 2026.

Key features

• Free tier with 2,000 operations a month, up to 500 a day
• AI image and AI video detection on every plan, including Free
• Deepfake detection from the Starter plan
• Generator table covers DALL-E, Firefly, Flux, Midjourney, Stable Diffusion and others
• Moderation models for nudity, text and more in the same API

Strengths and weaknesses

• Strength: Generous free tier for testing an integration
• Strength: One API covers moderation and AI detection
• Strength: Overages bill at $0.002 per operation instead of cutting service
• Weakness: Built for developers rather than casual uploads
• Weakness: Free tier is limited to 1 request per second
• Weakness: AI speech and music detection need the $99 Pro plan

Key facts

• Free tier: 2,000 operations a month
• Starter operations: 10,000 a month
• Max image size: 12 MB

Where it ranks

Sightengine is No. 6 in our Best AI Image Detectors verdict.