> For the complete documentation index, see [llms.txt](https://docs.raga.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.raga.ai/ragaai-catalyst/ragaai-metric-library/text-summarization/summary-fluency.md).
# Summary Fluency
**Objective:**
Summary Fluency evaluates the linguistic quality of the summary, focusing on its grammatical correctness, smoothness of phrasing, and readability. It measures whether the summary is coherent in language, free of awkward wording or disjointed structure, and whether it can be easily understood by a reader.
**Required Columns in Dataset:**
`LLM Summary`
**Interpretation:**
* **High values**: Indicate that the summary is well-written, grammatically correct, and easily readable.
* **Low values**: Suggest poor grammar, awkward phrasing, or readability issues, making the summary difficult to understand.
**Execution via UI:**
**Execution via SDK:**
```python
metrics=[
{"name": "Summary Fluency", "config": {"model": "gpt-4o-mini", "provider": "openai"}, "column_name": "your-text", "schema_mapping": schema_mapping}
]
```
---
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