Product: Resources

Voice activity detection tells a voice agent when someone is actually speaking. Here is how VAD works, why it drives turn-taking and interruptions, and where Silero VAD fits in a real-time pipeline.

You introduce feed ranking without increasing latency by moving scoring to write time, putting a cheap retrieval stage in front of your ranking model, and fetching features in parallel rather than in series.

Large group video calls stay under a few hundred milliseconds by moving the work onto the server. Here's how SFUs, WebRTC, and simulcast keep latency low.

Syncing chat state after a user goes offline means pulling a delta from the server first, applying it atomically, then replaying queued local writes - with each type of state handled according to its own durability and merge rules.

A vision agent watches a live video and audio stream and acts while things are still happening. Here is what a vision agent is, how it differs from batch vision pipelines and voice agents, and how to build one in about 18 lines with Vision Agents, the open-source Python framework from Stream.

Open Instagram and you're immediately dropped into motion. The news feed is already populated. Stories are queued at the top. Within seconds, the app has a read on what you're likely to engage with. That read comes from signals (watch time, shares, saves, replies, viewing patterns) that update ranking systems and shape what's

The latest live streaming research shows the market hitting $221.17 billion by 2031.. But at the platform level, the data tells a more nuanced story. In Q1 2026, YouTube and TikTok both saw live content consumption drop, with TikTok Live viewership down more than 11%. At the same time, Twitch and Kick edged up in

Activity feeds look like the simplest feature in your app. A reverse-chronological list of stuff that happened. Sort by timestamp, render, done. That was then. Feeds are now a composite of the underlying event and everything that accumulates on top of it: likes, threads, GIFs, replies, and read receipts. If you're building one today, you