👉 The MNFL, or Minimum Natural Language Fluency, is a metric used to evaluate how closely a machine-generated text resembles human-written language. It assesses various linguistic features such as vocabulary diversity, sentence structure complexity, and grammatical correctness, aiming to quantify how natural and fluent the text sounds compared to human language. A high MNFL score indicates that the generated text is more coherent, contextually relevant, and stylistically similar to human writing, making it a crucial benchmark for natural language processing models.
