# TGI Model Question

**URL:** <https://discuss.huggingface.co/t/tgi-model-question/55935>\
**Category:** 🤗Hub\
**Created:** [September 21, 2023, 10:22pm UTC](https://discuss.huggingface.co/t/tgi-model-question/55935 "2023-09-21T22:22:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Ahmkhan](https://avatars.discourse-cdn.com/v4/letter/a/a88e57/32.png) [@Ahmkhan](https://discuss.huggingface.co/u/Ahmkhan)\
**Post date:** [September 21, 2023, 10:22pm UTC](https://discuss.huggingface.co/t/tgi-model-question/55935/1 "2023-09-21T22:22:03Z")

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Does TGI Model ([GitHub - huggingface/text-generation-inference: Large Language Model Text Generation Inference](https://github.com/huggingface/text-generation-inference)) has any metric or api to know time taken to generate first token?

Also, I receive below error when my parameter sends stream=true - Does decoder\_input\_detail works only with stream = false?

`decoder_input_details` == true is not supported when streaming tokens"