I spent a week in SFO following my wife who has a Dev team here. At a meetup about ML using AWS SageMaker I heard: One GitHub star is worth 15,000 dollars to your start up valuation.
Butter.ai launched on Slack giving it instant access to a market as well ability to offer chat UX meaning they had lass to build to enter a market. Slack invested in Butter.
At a San Francisco AI meetup I heard: AI is what you sell to customers and Machine Learning is what you say you do to hire.