# Authentication and running different models

**URL:** <https://forum.rasa.com/t/authentication-and-running-different-models/21243>\
**Category:** Rasa Open Source\
**Created:** [November 14, 2019, 9:11am UTC](https://forum.rasa.com/t/authentication-and-running-different-models/21243 "2019-11-14T09:11:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![juvanthomas](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/juvanthomas/32/5906_2.png) [@juvanthomas](https://forum.rasa.com/u/juvanthomas)\
**Post date:** [November 14, 2019, 9:11am UTC](https://forum.rasa.com/t/authentication-and-running-different-models/21243/1 "2019-11-14T09:11:08Z")

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I want to run different models for different users, how can i do that?

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**Author:** ![Tanja](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/tanja/32/4696_2.png) [@Tanja](https://forum.rasa.com/u/Tanja)\
**Post date:** [November 15, 2019, 9:02am UTC](https://forum.rasa.com/t/authentication-and-running-different-models/21243/2 "2019-11-15T09:02:28Z")

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An assistant can only load one model at a time. So if you want to run different models at the same time, you need to run multiple assistants. You might find some useful tips on how do to that in this thread: [Removing projects for Rasa NLU server](http://forum.rasa.com/t/removing-projects-for-rasa-nlu-server/8962/19).