Chinese (Mandarin) AI Content Annotator — Singapore (C1 English Required)

OpenTrain is hiring contract AI Content Annotators to help evaluate and improve next -generation AI systems. In this role, you will review AI -generated outputs (primarily text; occasionally with image/video context), assess quality and factual accuracy, compare multiple responses, classify content, and flag safety/policy issues using detailed guidelines and rubrics. Tasks may also include writing and refining prompts and gold -standard responses for supervised fine -tuning and RLHF evaluation.

We're hiring multiple contractors for this engagement. Work is asynchronous with a flexible schedule, but you must be based in Singapore and able to meet accuracy and throughput targets consistently.