Fast mode

Fast mode supports synchronous summarization for inline conversation text with immediate results after processing completes.

Capabilities

Single-call transcript summarization
Immediate summarization results
Optimized for bounded conversations and meeting content

Input

The API accepts the following input:

Supports conversation or transcript text from any system
Limits input size to 96 KB

Output

The API returns the summarization result as human-readable rendered text in the result.text field. The content of result.text depends on the task you requested:

Task	Content of `result.text`
`recap`	A `Recap:` section with a single concise sentence or short paragraph.
`summary`	A `Summary:` section with a detailed paragraph or multi-paragraph summary.
`action_items`	An `Action Items:` section grouped by owner. Each owner appears as a `Name` markdown header, followed by their items as `-` bulleted lines.
`full_summary`	All three sections — `Recap:`, `Summary:`, and `Action Items:` — concatenated with blank lines between them.

For example, a full_summary response returns result.text similar to:

Recap:
The team agreed to delay the launch by one week.
Summary:
The discussion focused on finalizing the project timeline. Engineering requested additional time for validation, and the team aligned on shifting the launch schedule accordingly.
Action Items:
Engineering
- Complete validation before the new launch date.
Marketing
- Adjust the campaign timeline to match the revised launch.

Summarization options

These options control the summarization task and output language.

Parameter	Type	Default	Description
`summary_type`	string	`"conversation"`	The type of content being summarized. Currently only `"conversation"` is supported.
`task`	string	`"full_summary"`	The summarization task. Accepted values are `"recap"`, `"action_items"`, `"summary"`, and `"full_summary"`.
`language`	string	`"en-US"`	Output language as a BCP-47 locale code. Must be one of the supported locales.

You can optionally include a reference_id to track the request in your own systems.

Summarize text

Use this endpoint to send inline transcript text for synchronous summarization:

POST /aiservices/summarizer/summarize

Example request (cURL)

This cURL example sends conversation text to the Summarizer API and returns a rendered summary:

curl -X POST https://api.zoom.us/v2/aiservices/summarizer/summarize \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "input": {
      "text": "Speaker A: Let'\''s finalize the timeline. Speaker B: We need one more week."
    },
    "config": {
      "summary_type": "conversation",
      "task": "summary",
      "language": "en-US"
    },
    "reference_id": "meeting-789"
  }'

Response (200)

{
    "request_id": "req_123",
    "task": "summary",
    "result": {
        "text": "Summary:\nThe discussion focused on finalizing the project timeline, with agreement to extend it by one week to allow additional validation."
    },
    "model": "zoom-summarizer-v1"
}