COMPARISON · ENTERPRISE SUITES

Enterprise-grade filtering,
without the sales call.

CleanSpeak is a capable, established moderation suite. Filter8 is the API-first alternative for teams who'd rather create an account and filter a message in a curl than book a demo — deterministic verdicts you can replay, transparent pricing from $0.

Try the playground → See transparent pricing
100 free calls · no quote · no procurement cycle to start.
Self-serve, not sales-led
Sign up, mint a key, ship a verdict in minutes. No demo, no quote, no procurement gate between you and a working integration.
Pricing you can read on a page
Free tier, then $5 / $20 / $100 a month. No "contact us" to find out what it costs.
Replayable, explainable verdicts
Every decision is a pure function of (bundle, input) with an optional explain trace — reproduce any verdict offline, in CI, or in an audit.

How they line up

CAPABILITY CleanSpeak Filter8
Product shapeFull moderation suiteFocused filtering engine + API
Getting startedDemo / quoteSelf-serve, free in minutes
PricingContact vendorPublished: $0 → $5 → $20 → $100
DeploymentSelf-hosted heritageManaged, hosted API
Integration surfacePlatform + integrationsOne JSON endpoint + WebSocket + embedded docs
Evasion handling✓✓ 26 classes, deterministic
Rating-aware (E–M · minors)Configurable✓ per-rating ceilings
Contact / PII classifiersVaries by productPhone · email · URL (incl. spelled-out)
Replayable explain trace—✓ pure (bundle, input)
Custom dictionaries / overlay✓✓ versioned per-tenant overlay
Human review queue / workflow✓ built-inreview verdict + webhooks (bring your queue)
CleanSpeak is a product of Inversoft. This comparison reflects Filter8's positioning and publicly available information as of July 2026; capabilities, deployment options, and pricing change — verify current details with the vendor before relying on specifics.
WHERE A FULL SUITE WINS

Pick the right tool for the scope

If you need a complete managed moderation operation — human review queues, moderator tooling, forum and user management, long-standing professional services — a full suite like CleanSpeak is built for exactly that, and we won't pretend a filtering API is the same thing.

But many teams don't need the whole operation — they need a best-in-class deterministic filter they drop into their own stack, priced transparently, integrated in an afternoon. Filter8 emits a review verdict and signed webhooks so it plugs into *your* queue and tooling, rather than asking you to adopt a platform.

CleanSpeak comparison questions

Is Filter8 a CleanSpeak replacement?
For the deterministic filtering core — profanity, evasion, PII, rating-aware decisions — yes, with a modern API and self-serve onboarding. If you need a full review-queue suite, that's a broader scope; many teams just need the filter.
Can I self-host like CleanSpeak?
Not yet — Filter8 is a managed, hosted API today: the same engine and bundles behind every verdict, and it keeps nothing after the response.
How does pricing compare?
We publish it: free tier, then $5 / $20 / $100 monthly. Start and integrate with no sales call.
Do I get an audit trail of decisions?
Yes — verdicts replay offline, the explain trace shows every candidate and veto, and a per-tenant audit log records the rest.
COMPARE MORE
vs Azure Content Safety — hosted content safety → vs AWS Guardrails — per-evaluation billing → vs Hive — ML moderation →

Evaluate it before you talk to anyone.

Create an account, run your own worst-case inputs through the engine, and decide on evidence. 100 free calls, no card.

Get an API key Open the playground