# Rasa Train model

**URL:** <https://forum.rasa.com/t/rasa-train-model/45277>\
**Category:** Rasa Open Source\
**Created:** [July 1, 2021, 2:06pm UTC](https://forum.rasa.com/t/rasa-train-model/45277 "2021-07-01T14:06:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Zeusturbo](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/zeusturbo/32/15020_2.png) [@Zeusturbo](https://forum.rasa.com/u/Zeusturbo)\
**Post date:** [July 1, 2021, 2:06pm UTC](https://forum.rasa.com/t/rasa-train-model/45277/1 "2021-07-01T14:06:58Z")

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Is it necessary to “train” rasa every time if we do some changes in any one of these files “domain.yml”, “nlu.md” and “story.md” files.?

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**Author:** ![nik202](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/nik202/32/16098_2.png) [@nik202](https://forum.rasa.com/u/nik202)\
**Post date:** [July 1, 2021, 3:03pm UTC](https://forum.rasa.com/t/rasa-train-model/45277/2 "2021-07-01T15:03:13Z")

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@Zeusturbo Yes 🙂 If you not changed the nlu.md and story.md it will show message nothing changed and if you changed in domain.yml it will trained. Basic thumb rule.

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**Author:** ![Zeusturbo](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/zeusturbo/32/15020_2.png) [@Zeusturbo](https://forum.rasa.com/u/Zeusturbo)\
**Post date:** [July 1, 2021, 3:11pm UTC](https://forum.rasa.com/t/rasa-train-model/45277/3 "2021-07-01T15:11:27Z")

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Oh very well… So I’m not the only one 😅

Thanks 🙂

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**Author:** ![nik202](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/nik202/32/16098_2.png) [@nik202](https://forum.rasa.com/u/nik202)\
**Post date:** [July 1, 2021, 3:13pm UTC](https://forum.rasa.com/t/rasa-train-model/45277/4 "2021-07-01T15:13:40Z")

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@Zeusturbo your welcome 🙂 close this thread for future reference for others.