The Unit 2 final quiz cannot generate feedback because the grader fails to resolve api-inference.huggingface.co, even though my solutions match the reference

A Unit 2 final quiz grader is failing to generate feedback because its backend cannot resolve api-inference.huggingface.co, the Hugging Face Inference API endpoint it calls, even when submitted solutions match the reference. The failure is attributed to the grader side — DNS resolution or inference backend availability — rather than the user's browsers, networks, or resubmissions, and the main website still loads normally. The SmolAgents team must check the quiz's feedback service and restore connectivity to the Inference API before feedback generation resumes.

Thanks for reporting this — your description matches an upstream connectivity issue rather than anything wrong with your quiz answers. The Unit 2 grader calls the Hugging Face Inference API to generate feedback, and when the backend cannot resolve api-inference.huggingface.co , the feedback step fails even if the submitted solutions are correct. This is separate from the main website, which can still load normally. Since you’ve already tried multiple browsers, networks, and resubmissions, the issue is almost certainly on the grader side DNS resolution or inference backend availability , not on your end. The SmolAgents team will need to check the quiz’s feedback service and restore connectivity to the Inference API. Once the resolver issue is fixed, the grader should be able to generate feedback normally. Thanks for the detailed troubleshooting — it helps confirm this is a backend problem rather than a client-side one.