# Trainer eval step callback

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**Category:** Beginners\
**Created:** [January 30, 2024, 4:47pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Ftrainer-eval-step-callback%2F71215 "2024-01-30T16:47:06Z")\
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**Author:** ![Federic](https://avatars.discourse-cdn.com/v4/letter/f/e99b99/32.png) [@Federic](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2FFederic)%5C
**Post date:** [January 30, 2024, 4:47pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Ftrainer-eval-step-callback%2F71215%2F1 "2024-01-30T16:47:06Z")

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during trainer’s train is possible to add a callback every evaluation step where the model is used to generate output using eval batches?