Text Summarization

The Azure Text Summarization service provides state‑of‑the‑art, extractive and abstractive summarization for large documents, articles, and conversation transcripts. It helps users quickly understand the key points of a piece of text.

Key Features

• Extractive summarization – selects the most relevant sentences.
• Abstractive summarization – rewrites content in concise form.
• Supports up to 25,000 characters per request.
• Customizable length: short, medium, long.
• Integration with Azure AI Studio and REST API.

Quickstart Demo

Python Sample

import os, requests, json

endpoint = os.getenv("AZURE_ENDPOINT")
key = os.getenv("AZURE_API_KEY")
path = "/language/:analyze-text?api-version=2023-04-01-preview"

def summarize(text, length="medium"):
    url = endpoint + path
    headers = {
        "Ocp-Apim-Subscription-Key": key,
        "Content-Type": "application/json"
    }
    body = {
        "kind": "ExtractiveSummarization",
        "analysisInput": {"documents": [{"id": "1", "language": "en", "text": text}]},
        "parameters": {"summaryLength": length}
    }
    response = requests.post(url, headers=headers, json=body)
    response.raise_for_status()
    result = response.json()
    return result["summaries"][0]["text"]

sample = """Your long text goes here..."""
print(summarize(sample, "short"))

REST API Reference

POST https://{endpoint}/language/:analyze-text?api-version=2023-04-01-preview
Headers:
  Ocp-Apim-Subscription-Key: {key}
  Content-Type: application/json
Body:
{
  "kind": "ExtractiveSummarization",
  "analysisInput": {
    "documents": [
      {
        "id": "1",
        "language": "en",
        "text": "Your text..."
      }
    ]
  },
  "parameters": {
    "summaryLength": "medium"
  }
}
Response:
{
  "summaries": [
    {
      "text": "Summarized content..."
    }
  ]
}