[santoshalper]

According to the post, the Twitter API was already generating $400M/year in revenue. Not sure what it cost, but that doesn't sound like a charity to me.

[brunes]

That is the commercial API. People keep treating these the same, when they have nothing to do with eachother.

[saryant]

You need both. Without the free API you don’t have a funnel of new customers who can grow into the enterprise tiers.

They have a hell of a lot to do with each other beyond that too.

(Led the search API team at Twitter and worked on both API platforms)