Prompt Junky

Prometheus Eval

Online · Nationwide

An open-source evaluator language model and toolkit for grading responses against a user-supplied scoring rubric, offered as an alternative to proprietary judge models.

Services

  • Open judge model
  • Rubric-based grading
  • Absolute and pairwise scoring
  • Evaluation toolkit

Highlights

  • #python
  • #llm-judge
  • #open-weights
  • #apache-2.0

Source: Official GitHub repository. Last checked 2026-09-18. Spot an error? Tell us.

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