COMPARISON · CHAT-BUNDLED MODERATION

Your filter shouldn't be locked
to one chat vendor.

Stream and Sendbird bundle moderation — but only for text inside their SDK, tied to their roadmap and pricing. Filter8 is a portable, deterministic filter for your whole stack: chat, comments, usernames, bios, AI prompts — on any backend, or none.

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100 free calls · works with any chat stack · no lock-in.
One policy, every surface
Bundled moderation only sees the chat SDK. Filter8 applies the same deterministic policy to chat, comments, usernames, bios, reviews, and AI prompts — everywhere text enters.
No vendor lock-in
Change chat providers and your moderation moves with you — it was never tied to their SDK, roadmap, or pricing in the first place.
Deterministic & explainable
Every verdict replays offline with a full trace — the same answer in the chat path, a comment box, or a CI test. And it's cheaper for pure filtering.

Bundled moderation vs a standalone filter

CAPABILITY Stream / Sendbird moderation Filter8
ScopeText inside the chat SDKAny text surface, any backend
PortabilityTied to the platformStandalone — moves with you
ApproachPlatform-definedDeterministic engine
Explainable / replayableVaries✓ reproducible explain trace
Evasion (leet · homoglyph · spacing · zero-width)Varies26 classes, deterministic
Contact / PII (incl. spelled-out)VariesBuilt-in classifiers
Rating-aware (E–M · minors)—Per-rating, per-category ceilings
Cross-message abuseVariesConversation layer
Data handlingPlatform-hostedNothing retained after the response
Full chat infrastructure✓ their product— filter only
Stream (GetStream) and Sendbird are chat-infrastructure providers with moderation features. Comparison as of July 2026 based on public information and Filter8's positioning; capabilities and pricing change — verify current details with the vendor before relying on specifics.
WHERE A CHAT PLATFORM WINS

Honest about the trade

If you need chat infrastructure itself — channels, presence, delivery, history, client SDKs — Stream and Sendbird are excellent at exactly that, and bundled moderation is a convenience if all your text lives in their SDK. Filter8 isn't a chat platform; it's the filter you point at every text surface in your product, so your moderation policy is consistent and portable no matter what carries the messages.

Chat-moderation questions

Do I have to replace Stream/Sendbird?
No. Keep your chat platform and call Filter8 wherever text enters — chat, comments, usernames, AI prompts. It complements a chat SDK.
Why not the built-in moderation?
It only sees text in that SDK and ties filtering to one vendor. Filter8 gives one consistent, portable, deterministic policy across your whole stack.
Is it cheaper?
For pure filtering, typically yes — flat compute cost, and you don't pay to moderate messages that never touch the chat SDK.
Can it catch abuse across messages?
Yes — the conversation layer re-runs the engine over a speaker's recent window, so a number or slur split across turns is still caught, with per-message attribution.
COMPARE MORE
vs Community Sift — the enterprise suite → vs Bodyguard.ai — hosted moderation SaaS → vs WebPurify — hosted moderation service →

One filter. Your whole stack.

Portable, deterministic, explainable — on any backend you run. 100 free calls, no card.

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