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Updated March 29, 2026

Content Moderation API Comparison: Which One Should You Choose in 2026?

Last updated: March 2026

Every platform that accepts user-generated content eventually needs automated moderation. Manual review does not scale, and the legal and reputational risks of unmoderated content are real and growing.

The good news: there are more content moderation APIs available today than ever before. The bad news: choosing between them is not straightforward. They differ in what they detect, how they score it, what they charge, and how hard they are to integrate.

This guide compares the major content moderation APIs available in 2026 and provides a framework for choosing the right one for your use case.

The Landscape in 2026

The content moderation API market has shifted in the past year. Google Perspective API, one of the most widely used free options, is shutting down at the end of 2026. Meanwhile, LLM-based moderation has matured and new specialized providers have emerged.

Here is what is available today.

The Contenders

moder8r

moder8r is a dedicated text moderation API that focuses on ease of integration and Perspective API compatibility. It scores content on toxicity, insults, profanity, threats, and identity attacks using a 0-1 probability scale.

  • Modality: Text
  • Approach: LLM-based classification
  • Latency: ~120ms median
  • Languages: 15+
  • Pricing: Free tier (10K req/mo), then $0.001/request

OpenAI Moderation API

Bundled with any OpenAI API key. Classifies text across hate, harassment, self-harm, sexual, and violence categories. Returns boolean flags and per-category scores.

  • Modality: Text
  • Approach: Dedicated moderation model
  • Latency: ~150ms median
  • Languages: 10+
  • Pricing: Free

Azure AI Content Safety

Microsoft's offering within Azure Cognitive Services. Covers text and image moderation with severity scoring (0-6 scale) across hate, sexual, violence, and self-harm.

  • Modality: Text, Image
  • Approach: Dedicated classification models
  • Latency: ~200ms median
  • Languages: 10+
  • Pricing: Free tier (5K req/mo), then ~$1.50/1K requests

Hive Moderation

Enterprise-grade multimodal moderation platform. Text, image, video, and audio classification with very granular subcategories.

  • Modality: Text, Image, Video, Audio
  • Approach: Ensemble of specialized models
  • Latency: ~200ms (text), varies for other media
  • Languages: 10+
  • Pricing: Custom (sales-driven)

Tisane Labs

Linguistics-first approach with deep multilingual support. Detects specific abuse types, criminal activity, and personal attacks across 30+ languages.

  • Modality: Text
  • Approach: NLP + abuse detection
  • Latency: ~250ms median
  • Languages: 30+
  • Pricing: From $50/month

Roll Your Own (Open-Source Models)

Fine-tune an open-source model like LLaMA Guard, Mistral-moderation, or a dedicated toxicity classifier and host it on your own infrastructure.

  • Modality: Whatever you build
  • Approach: Self-hosted model
  • Latency: Depends on your infrastructure
  • Languages: Depends on model and training data
  • Pricing: Infrastructure costs only

Feature Comparison Table

| Feature | moder8r | OpenAI | Azure | Hive | Tisane | Self-Hosted | |---|---|---|---|---|---|---| | Text moderation | Yes | Yes | Yes | Yes | Yes | Yes | | Image moderation | No | No | Yes | Yes | No | Possible | | Video moderation | No | No | No | Yes | No | Possible | | Toxicity score (0-1) | Yes | Partial | No (0-6) | Yes | Partial | Depends | | Custom categories | Yes (Pro) | No | No | Yes | Partial | Yes | | Perspective-compatible | Yes | No | No | No | No | No | | On-premise option | No | No | Yes | Yes | Yes | Yes | | Batch processing | Yes (Pro) | No | Yes | Yes | Yes | Yes | | Real-time streaming | No | No | No | No | No | Possible | | SOC 2 / HIPAA | In progress | Yes | Yes | Yes | Varies | You own it |

Choosing by Use Case

Not every platform needs the same thing. Here is how the options break down by common use cases.

Community Forums and Comment Sections

What matters: Low latency, toxicity scoring with adjustable thresholds, easy integration, reasonable cost at moderate volume.

Best options: moder8r or OpenAI Moderation. Both are simple to integrate and handle the core toxicity detection that forums need. moder8r's threshold-based scoring is particularly useful for forums that want to auto-hide borderline content rather than just block clearly toxic posts.

Social Platforms and Messaging

What matters: Speed (users expect real-time chat), high throughput, multiple content types (text + images + video), and global language support.

Best options: Hive (if you need multimodal) or a combination of moder8r (text) + a dedicated image moderation service. For platforms with users worldwide, consider Tisane Labs for its language breadth.

Gaming (In-Game Chat)

What matters: Ultra-low latency, profanity filtering, handling of leetspeak and creative evasion, high volume at low cost.

Best options: moder8r (low latency, profanity detection) or a self-hosted solution if you need sub-50ms latency. Gaming chat moderation is one of the few cases where self-hosting can genuinely make sense because latency requirements are extreme and you can tune the model for gaming-specific slang.

UGC Platforms (Reviews, Listings, Profiles)

What matters: Accuracy over speed (moderation can be slightly async), spam detection alongside toxicity, compliance with platform policies.

Best options: Azure Content Safety (good compliance story) or moder8r. For marketplaces that need to comply with regulations like the EU's Digital Services Act, Azure's compliance certifications matter.

Enterprise / Regulated Industries

What matters: Compliance certifications (SOC 2, HIPAA), SLA guarantees, on-premise deployment, audit trails.

Best options: Azure Content Safety or Hive. Both offer enterprise SLAs and compliance. Tisane Labs also supports on-premise deployment. If you need the data to never leave your infrastructure, self-hosting or Tisane's on-premise option is the way to go.

The Decision Framework

When evaluating content moderation APIs, these are the factors that actually matter, roughly in order of importance:

1. Does It Detect What You Need?

This sounds obvious, but the category sets differ significantly between providers. If you need a specific "insult" score, OpenAI does not provide one. If you need image moderation, moder8r and Tisane do not offer it. Start by listing exactly what you need to detect.

2. Integration Effort

How long will it take to integrate? If you are migrating from Perspective API, a compatible endpoint saves days. If you are starting fresh, most APIs are straightforward. Factor in the time to rewrite any score-handling logic if the response format differs from what you are used to.

3. Latency

For real-time use cases (chat, live comments), anything over 300ms is noticeable. For async moderation (review queues, batch processing), latency matters less. Measure actual latency from your servers, not just the numbers providers advertise.

4. Language Support

If your users communicate in languages other than English, test thoroughly. Many APIs advertise multilingual support but perform significantly worse on non-English content. Tisane Labs is the standout here for genuine multilingual depth.

5. Pricing at Your Scale

A free API is great until you need 10 million requests per month. Model out your expected volume and compare total costs. Do not forget to factor in the engineering time for integration and maintenance.

6. Customization

Some platforms need to enforce specific community guidelines beyond standard toxicity categories. If you need custom categories (e.g., detecting discussion of specific topics, enforcing platform-specific rules), check whether the API supports them.

Pricing Comparison

| Provider | Free Tier | Cost at 100K req/mo | Cost at 1M req/mo | |---|---|---|---| | moder8r | 10K req/mo | ~$90 | ~$800 | | OpenAI Moderation | Unlimited* | $0 | $0 | | Azure Content Safety | 5K req/mo | ~$142 | ~$1,500 | | Hive | Trial | Custom | Custom | | Tisane Labs | Trial | ~$100 | ~$500 | | Self-hosted | N/A | $200-2,000+ | $500-5,000+ |

*OpenAI Moderation is free but rate-limited based on your OpenAI usage tier.

Self-hosted costs vary enormously depending on your infrastructure, model choice, and whether you use GPU instances.

Our Recommendation

There is no single best content moderation API. But here is a starting point:

  • Migrating from Perspective API? Start with moder8r for the fastest migration, or OpenAI if cost is the deciding factor.
  • Need multimodal moderation? Hive is the most complete platform.
  • Global audience, many languages? Tisane Labs has the deepest multilingual support.
  • Enterprise compliance requirements? Azure Content Safety or Hive.
  • Maximum control and customization? Self-hosted with an open-source model.

Whatever you choose, start with a proof of concept. Run a sample of your real user content through the API and evaluate the results before committing. Most providers offer free tiers or trials that make this easy.

Want to test moder8r on your content? Sign up for free and get 10,000 requests per month at no cost.