I am completely new to Hugging Face. So I asked Grok to hold my hand while I entered. After a long discussion and many tries Grok kind of gave up and told me to ask here.
I have this curl command (windows cmd format):
curl -v https://api-inference.huggingface.co/models/microsoft/DialoGPT-medium ^
-X POST ^
-d ‘{“inputs”: “The goal of life is”}’ ^
-H ‘Authorization: Bearer %KEY_HF%’ ^
-H ‘Content-Type: application/json’ ^
-o temp.html 2> curl_debug.txt
I am on a free plan. The API key is fresh and should be valid for READ. I get 401. Why?
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Hi @Lejonhjarta welcome 
We have info on authentication here. Make sure you’re using a fine-grained token with Make calls to Inference Providers permissions enabled.
Unfortunately, the model microsoft/DialoGPT-medium · Hugging Face isn’t deployed with any Inference Provider at this time. On the model page you can click ‘Ask for Provider Support’.
Check out our filtered list of 48k+ models deployed with at least one Inference Provider. You can also use DialoGPT-medium with Inference Endpoints instead.
We have a guide Send Your First API Call if you’d like a walkthrough, and make sure to subscribe to PRO to unlock 20× included inference credits!
Hope this helps! 
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Thanks. I created a new access token with permissions FINEGRAINED (where I checked “inference”).
And I switched to the first model in that “filtered list”.
set MODEL=zai-org/GLM-4.6
Unfortunately I still get 401.
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I think I have to give up on Hugging Face. I have not find anything that works on the free tier. So I can not test.
And unfortunately I have not find any info about how secure the payment system is. There does not seem to have been any evaluation of that?
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Can you please double check that your code snippet looks like this: zai-org/GLM-4.6 · Hugging Face? (You can find this on the model page by clicking Deploy > Inference Providers)
Check out our guide here as well: Inference Providers .
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