# yaml-language-server: $schema=https://promptfoo.dev/config-schema.json description: G-Eval criteria-based evaluation of LLM responses prompts: - 'Hello! How are you?' providers: - openai:gpt-4.1-mini tests: - assert: # Calculate score for one criteria only - type: g-eval value: >- Coherence - the collective quality of all sentences. We align this dimension with the DUC quality question of structure and coherence whereby "the reply should be well-structured and well-organized. The reply should not just be a heap of related information, but should build from sentence to a coherent body of information about a topic." - assert: - type: g-eval value: >- Consistency - the factual alignment between the reply and the source. A factually consistent reply contains only statements that are entailed by the source document. Annotators were also asked to penalize replies that contained hallucinated facts. - assert: - type: g-eval value: >- Fluency - the quality of the reply in terms of grammar, spelling, punctuation, word choice, and sentence structure. - assert: - type: g-eval value: >- Relevance - selection of important content for the source. The reply should include only important information for the source document. Annotators were instructed to penalize replies which contained redundancies and excess information. - assert: # Calculate average score among all criterias - type: g-eval value: - Coherence - the collective quality of all sentences. We align this dimension with the DUC quality question of structure and coherence whereby "the reply should be well-structured and well-organized. The reply should not just be a heap of related information, but should build from sentence to a coherent body of information about a topic." - Consistency - the factual alignment between the reply and the source. A factually consistent reply contains only statements that are entailed by the source document. Annotators were also asked to penalize replies that contained hallucinated facts. - Fluency - the quality of the reply in terms of grammar, spelling, punctuation, word choice, and sentence structure. - Relevance - selection of important content for the source. The reply should include only important information for the source document. Annotators were instructed to penalize replies which contained redundancies and excess information.