The Mux Blog

We're a team of engineers, marketers, designers, all passionate about video and the work we create together. Welcome to our blog about video.

Walker Frankenberg (Senior Engineer) and Joshua Alphonse (Community Engineer) sitting down and chatting.

Published on August 26, 2026 (3 days ago)

Dev Talks: Building Automated AI Workflows With Mux Robots Directives API

By Walker and Joshua • 6 min read • Product & Engineering

Learn about automating Mux Robots Workflows with the new Directives API.

Illustration of a video player interface showing a 720p resolution badge in the top right corner, with playback controls including a play button, scrubber, and settings gear icon.

Published on August 24, 2026 (5 days ago)

It’s one rendition. What could it cost?

By Andrew Crowe • 10 min read • Engineering

Why we kept 270p, added 720p, and let the data, not intuition, decide our basic rendition ladder.

Published on August 20, 2026 (9 days ago)

Domo arigato, Mux Roboto: stream.new's road to Robots

By Phil Cluff • 13 min read • Product & Engineering • AI

Mux Robots powers stream.new's video moderation today. See how it evolved from 2021 vision API calls through @mux/ai to get there.

Published on August 10, 2026 (19 days ago)

The broadcast squeezeback, rebuilt with CSS Grid and WebVTT

By Dave Kiss • 11 min read • Engineering

Confession: I did not care much about football as recently as May. But by the time España lifted the trophy last month, I was watching matches I had no stake in, still unable to explain offside. Somew...

Published on August 3, 2026 (26 days ago)

How Mux chooses a CDN in 9.9ms

By Mark Franceschini • 10 min read • Engineering

CDN selection sounds simple: pick the best CDN for each viewer. But “best” is where it gets tricky. What does best even mean? Cheapest for the business? Fastest for the customer? Most reliable? Or, the...

A dark-background chart showing two overlapping score lines — blue and orange — representing two shot detection algorithms. Two tall spikes where both lines converge are labeled "Shot change detected by both algorithms" with a double-headed arrow spanning between them. Three warning triangle icons mark false positives: an orange triangle above a spike detected only by the first algorithm, and two blue triangles above spikes detected only by the second algorithm.

Published on June 25, 2026 (2 months ago)

How Mux detects shot boundaries

By Grzegorz Gronkowski • 4 min read • Engineering & Product

Learn more about the algorithm behind Mux Video's newest primitive: Shots.

React Symbol in a video player on a mobile smart phone

Published on June 12, 2026 (3 months ago)

React Native needs a new video player

By Joshua Alphonse • 10 min read • Engineering

A new React Native video player with AI Video intelligence features from Mux Robots and the ability to collect video data with Mux Data.

A Mux Robot inserting a coin into a another robotic machine

Published on May 28, 2026 (3 months ago)

Fine-tuning a multimodal model for video intelligence

By Joshua Alphonse • 12 min read • Product & Engineering

We’ve been on quite the run for the first half of 2026. VideoJS got an upgrade, and Mux Robots, the new video intelligence layer for videos on Mux, was just released. There is one more project that I t...

Illustration of a monitor on a stand against a yellow grid background. The screen shows a browser window with a recording indicator (red dot and "REC" label) in the upper left. A red dashed selection border outlines the recording area, which contains a large red circle with a stylized smiley face in the center.

Published on May 5, 2026 (4 months ago)

The death of the to-do app

By Dave Kiss • 10 min read • Engineering

LLMs killed the to-do app. So we built a real screen recorder instead: open source, native macOS, and, of course, powered by Mux.

Content moderation dashboard showing on item passing, one item that "needs review" and one items that is processing

Published on April 28, 2026 (4 months ago)

One click content moderation dashboard with Mux Robots

By Dylan Jhaveri • 4 min read • Engineering • AI

Every user-generated content site needs content moderation. We’ve spilled lots of ink on this topic over the years, and even a Demuxed talk. Feel free to dive into any of those links if it suits you. ...

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