$0.70/hr is our starter rate for low-volume testing. In production, developers will see higher usage and choose to commit to volume and longer-term usage. Because of this, we've seen most teams don’t pay the starter price once they scale beyond early pilots

Is this with active speech or you pay in every second of silence too?

Usage includes silent time too as we are still processing the media streams

What is the value in paying this massive cost when Teams, Zoom all support ootb?

Enabling transcription/recordings per platform and remembering to record creates user-dependent setup. Also the host often needs to install apps which adds security friction, and you still have to build/maintain separate implementations for Zoom/Meet/Teams which is often a cost that devs don't want to deal with

Instead, we built a single API that can get the same results without the issues mentioned above so you can focus on building the features your users care about

It is a lot but processing real time video and audio streams inherently consumes alot of CPU. So they may not be making as much profit on that price as you'd think.

I run an open source alternative to Recall (for meeting bots), and our costs are about 8 cents per hour.

What is the open source project?

The median salary in the US is $29/hour. By definition a one hour meeting has at least two people in it; often more. So two median guys talking for an hour costs ~$60. The meeting the you really want transcripts for often contain more than one person; and often involve people earning more than the median. I'd happily ad $1 to every single one of my meetings if they get more productive.