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TLDR; Wide-column stores like Cassandra handle messages while Redis holds read state, because each subsystem's access patterns differ significantly. Presence alone generates a write on every connect, disconnect, and heartbeat, making it orders of magnitude more write-heavy than messages. End-to-end encryption prevents the server from searching, moderating, or generating push notification previews, which transport-plus-at-rest encryption

Most teams still think about bot detection as a security problem. CAPTCHAs, rate limiting, DDoS mitigation, browser fingerprinting, that's the domain of the security team, or the network layer above it. It's the gate traffic hits before it ever reaches the product. But the bots causing the most damage in 2026 aren't trying to take

Community Sift has been one of the most purpose-built content moderation platforms for gaming and online communities. If you're evaluating whether it's still the right fit, or your trust and safety team is looking at what else is out there, this guide gives you an honest comparison of the strongest moderation alternatives available today. We'll

We recently open-sourced the Stream Video ESP32 SDK — an SDK that lets an ESP32-S3 or ESP32-P4 join a Stream Video call, capture camera and microphone input, encode H.264 + Opus in real-time, and publish it over WebRTC. Someone on a browser or mobile device can then see and hear the ESP32 live. If you're

Everyone talks about models. New architectures, larger parameter counts, faster inference—those tend to dominate the conversation. But if you're actually building AI systems (or evaluating vendors), you quickly realize something else matters more: The data. Not just how much of it you have, but where it comes from, how it's processed, and how it evolves

Moderation has quietly become one of the hardest problems in modern apps. As chat, feeds, and real-time video interactions expand globally, the challenge isn’t just catching bad content; it’s doing it in real time, across languages, with context, and at scale. At Stream, we’ve been investing deeply in solving that problem. This roadmap is a

Chat looks simple. A user types a message, and it appears on the other person's screen. Ship it. At Stream, we know it's anything but. WebSockets. Persistence. Message ordering. Offline sync. Presence at scale. File uploads. Emojis. All of it is table stakes for any chat or messaging app, and all of it is a

Stream and CometChat are two of the most-evaluated platforms for teams building real-time communication into their products. Both offer APIs, SDKs, and UI components for messaging, audio, and video. But they are built around different philosophies:  Stream is engineered for deep customization and extreme scale, CometChat is designed to get you to production fast with