Course Difficulty Classifier

Use this endpoint when you need to automatically tag, sort, or filter courses by difficulty level without manual review. Ideal for edtech platforms building course catalogs, learning management systems that need to recommend appropriate courses to students, or content teams processing large volumes of course descriptions. Prefer this over general-purpose LLM classification when you want a lightweight, cost-effective, purpose-built ML classifier specifically tuned for educational content difficulty.

• Empty or missing course description input — returns validation error
• Input text too short or ambiguous for reliable classification — low confidence score or error
• Input is not course-related content — model may return incorrect or low-confidence label
• Service unavailable or payment not processed — returns 402 or 5xx error
• Input exceeds maximum text length — truncation or rejection error