Stratum

Use case

Post-Training Data From Domain Experts

Post-training data is expert-created material used after pretraining: supervised fine-tuning pairs, preference rankings, critiques, and RLHF support labels. The point is to teach or select a professional standard, not the average of the public web.

We are not a freelancer marketplace or traditional staffing company.

What is post-training data from domain experts

Post-training data is expert-created material used after pretraining: supervised fine-tuning pairs, preference rankings, critiques, and RLHF support labels. The point is to teach or select a professional standard, not the average of the public web.

The problem this use case solves

Web-scale text is mixed. For a vertical system, that mixture is the risk. Expert post-training data makes the target behavior inspectable. It does not, by itself, guarantee a leaderboard gain.

Work experts can run

  • Expert-authored SFT pairs
  • Preference and ranked comparisons
  • Critiques used as training signal
  • Policy-aligned refusals
  • Adjudicated hard cases

Common mistakes

  • Using the same items for SFT and later as an independent benchmark
  • Preference without domain justification
  • Unmaintained gold answers after a policy change

Need this capacity for a live program?

Share the profession, specialty, experience, location, headcount, hours, duration, and project description. We assemble the expert capacity.

  • Need 25 licensed nurses for a clinical AI evaluation
  • Need 15 attorneys in a specific practice area
  • Need 20 PhD scientists for benchmark creation
  • Need 30 senior software engineers for code evaluation