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CrowdFlower is the Human-in-the-Loop AI solution for data science and machine learning teams.

Our software platform trains, tests, and tunes machine learning models to make AI work in the real world. Ask a CrowdFlower expert how we can help!

Request a product demo to learn how our technology and expertise can support any of your AI use cases - from autonomous vehicles and chatbots to medical image labeling and search relevance. If you are an existing customer, please use the form to the right to request technical support.

And, if you are “here to task”, you can start by logging in here.


Located at the epicenter of today's technology - San Francisco's South of Market (SOMA)

940 Howard St.
San Francisco, CA 94103
(415) 985-7125