{"slug": "the-unit-2-final-quiz-cannot-generate-feedback-because-the-grader-fails-to-api", "title": "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", "summary": "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.", "body_md": "Thanks for reporting this — your description matches an upstream connectivity issue rather than\n\nanything wrong with your quiz answers.\n\nThe Unit 2 grader calls the Hugging Face Inference API to generate feedback, and when the backend\n\ncannot resolve `api-inference.huggingface.co`, the feedback step fails even if the submitted\n\nsolutions are correct. This is separate from the main website, which can still load normally.\n\nSince you’ve already tried multiple browsers, networks, and resubmissions, the issue is almost\n\ncertainly on the grader side (DNS resolution or inference backend availability), not on your end.\n\nThe SmolAgents team will need to check the quiz’s feedback service and restore connectivity to the\n\nInference API. Once the resolver issue is fixed, the grader should be able to generate feedback\n\nnormally.\n\nThanks for the detailed troubleshooting — it helps confirm this is a backend problem rather than a\n\nclient-side one.", "url": "https://wpnews.pro/news/the-unit-2-final-quiz-cannot-generate-feedback-because-the-grader-fails-to-api", "canonical_source": "https://discuss.huggingface.co/t/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/178159#post_3", "published_at": "2026-09-19 07:29:29+00:00", "updated_at": "2026-09-19 07:54:40.880776+00:00", "lang": "en", "topics": ["ai-infrastructure", "ai-tools", "ai-agents"], "entities": ["Hugging Face", "api-inference.huggingface.co", "SmolAgents", "Hugging Face Inference API"], "alternates": {"html": "https://wpnews.pro/news/the-unit-2-final-quiz-cannot-generate-feedback-because-the-grader-fails-to-api", "markdown": "https://wpnews.pro/news/the-unit-2-final-quiz-cannot-generate-feedback-because-the-grader-fails-to-api.md", "text": "https://wpnews.pro/news/the-unit-2-final-quiz-cannot-generate-feedback-because-the-grader-fails-to-api.txt", "jsonld": "https://wpnews.pro/news/the-unit-2-final-quiz-cannot-generate-feedback-because-the-grader-fails-to-api.jsonld"}}