Sightengine
by Kozelo SAS • Paris, France • Founded 2012
AI-Powered Content Moderation and Deepfake Detection API Platform
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8 reviews
What is Sightengine?
Sightengine is an AI-driven content moderation and media analysis API built for developers and platforms. It provides real-time image, video, text, and audio moderation across 120+ detection classes, including nudity, violence, hate speech, and restricted activities.
The platform also specializes in AI-generated image and video detection, deepfake identification, and near-duplicate content search. Founded in Paris in 2012, Sightengine serves social networks, marketplaces, dating apps, and media platforms worldwide with sub-second API response times and proprietary deep learning models trained specifically for trust and safety use cases.
Sightengine — AI-Powered Content Moderation and Deepfake Detection API Platform Whether you're evaluating Sightengine for your team or comparing it to alternatives in the AI Development Tools category, this in-depth review covers everything: features, pricing, real user reviews, pros and cons, integrations, and direct comparisons against competitors.
Key Features 8
Who Is Sightengine For
Pros & Cons
- Sub-Second API Response Times
- Transparent Public Pricing Model
- Proprietary Deep Learning Models
- 120+ Moderation Class Granularity
- API-Only With No Dashboard
- SDKs Lack Regular Maintenance
- Limited Decision Explainability Output
Frequently Asked Questions
5 questionsSightengine allows multiple detection models to be combined in a single API request. Developers can stack models such as nudity, violence, text moderation, and AI detection simultaneously, reducing latency and operation counts compared to running them separately.
Sightengine provides official client libraries for Python, PHP, and Node.js. The API also supports direct REST calls via cURL, making it compatible with virtually any programming language that can send HTTP requests.
Sightengine uses proprietary deep learning models trained to identify artifacts and patterns typical of AI-generated content. It supports detection across generators like Stable Diffusion, Midjourney, and DALL-E, returning confidence scores indicating the likelihood of synthetic origin.
Yes, live-stream moderation is available on the Pro plan and above. Sightengine processes video frames at configurable rates between 0.5fps and 2fps on Pro plans, analyzing each frame against selected moderation models and returning results in real time.
An operation is Sightengine's usage unit. Running one detection model on a single image counts as one operation. Combining multiple models in one call may consume additional operations. Failed requests and errors are not counted toward the monthly quota.
How Sightengine works
Sightengine is positioned as aI-Powered Content Moderation and Deepfake Detection API Platform. Under the hood it ships 8 headline capabilities, including Real-Time AI-Powered Image and Video Content Moderation API, AI-Generated Image, Deepfake, and Synthetic Media Detection, Text Moderation With Smart Profanity and Evasion Bypass Filters, 120+ Content Moderation Classes Including NSFW, Violence, and Hate, Audio Moderation With Transcription and Profanity Detection Capabilities and OCR and QR Code Detection in Images and Videos. Together these features cover the core workflows most teams expect from a modern ai development tools, from initial setup through day-to-day production use.
Sightengine runs as a self-contained product, so you can adopt it without touching the rest of your stack — useful when you want to evaluate the tool in isolation before wiring up integrations.
Who is Sightengine for?
Sightengine is most useful for Trust and Safety Engineers, Platform Developers Building Moderation Pipelines, Marketplace Product Listing Moderators and Dating App Development Teams. If your team falls into one of those buckets, the feature set lines up well with how you already work — you won't be forcing a square peg into a round hole.
Beyond the obvious use case, the product tends to attract users who want a low-friction starting point option in the ai development tools space.
Sightengine pricing explained
Sightengine runs on a freemium model. You get a usable free tier to evaluate the product, and you only pay when you outgrow the limits — usage volume, seat count, or premium features. Headline pricing: From $29/mo.
Across the AI Gear Base rubric, we score freemium pricing models on transparency, rate-limit honesty, and how predictable spend is at scale. Sightengine's freemium approach is standard for the category — useful for evaluation, but always re-check tier limits before you depend on the free plan.
Our verdict on Sightengine
Sightengine hasn't been rated by enough reviewers yet to publish an aggregate score. The strongest signal in those reviews is that sub-second api response times. The most common complaint is that api-only with no dashboard — worth knowing before you commit, but rarely a deal-breaker for teams that already match the use case.
If you're evaluating Sightengine against alternatives, weigh it on the same 7-criteria rubric we apply to every tool: capability, integrations, pricing transparency, support, security posture, roadmap velocity, and community signal. Built by Kozelo SAS, founded in 2012, the product has a clear track record you can verify before adopting it. The bottom line: Sightengine is a solid pick in the ai development tools category, and it deserves a spot on your shortlist if your workflow matches what it was built for.
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Sightengine Pricing
From $29/mo
- 10,000 operations per month
- $0.002 per additional operation
- Visual moderation (up to 50MB per video)
- Text moderation
- 40,000 operations per month
- $0.002 per additional operation
- Advanced video and live-stream moderation (up to 500MB)
- Audio moderation
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