Zentropi - Build Custom Content Labelers Instantly

${labeler.name || 'Untitled Labeler'} by ${labeler.username} unknown

No Version Yet Deployed

To use this labeler via API, you need to create and deploy a version:

Go to the Criteria tab and refine your labeler definition
Click the Save Version button to save a version
Choose "Yes" to deploy to API when creating the version

Once deployed, tap "Use Labeler" again for API instructions.

No Deployed Version Available

The creator hasn't deployed a version of this labeler yet. Once they deploy a version, you'll be able to use it via the Zentropi API.

API Integration

Run this labeler instantly with the Zentropi API using this labeler_id

${labeler.id}

Pro Tip: Pin to a specific version by using its labeler_version_id

${ forkData.version_id }

Code Examples

curl -X POST "https://api.zentropi.ai/v1/label" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "content_text": "YOUR TEXT TO LABEL HERE",
    "labeler_id": "${labeler.id}",
    "labeler_version_id": "${forkData.version_id === 'latest' ? '<omit for latest>' : forkData.version_id}"
  }'

import requests
url = "https://api.zentropi.ai/v1/label"
headers = {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
}
data = {
    "content_text": "YOUR TEXT TO LABEL HERE",
    "labeler_id": "${labeler.id}",
    "labeler_version_id": "${forkData.version_id === 'latest' ? '' : forkData.version_id}"
}
response = requests.post(url, headers=headers, json=data)
print(response.json())

const response = await fetch("https://api.zentropi.ai/v1/label", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    content_text: "YOUR TEXT TO LABEL HERE",
    labeler_id: "${labeler.id}",
    labeler_version_id: "${forkData.version_id === 'latest' ? '' : forkData.version_id}"
  })
});
const result = await response.json();
console.log(result);

Name (optional)

Description (optional)

Deploy

Make it available via API and to anyone who can see your labeler

No

Yes

Labeler currently visible to everyone. only you. Change in settings if you wish. Undeployed versions are only visible to you

Version v${versions.length - 1} Created

Criteria Suggestions

${ change }

Click to review suggested criteria

Key changes will appear here after optimization completes.

${ parsedMetricDeltas.precision >= 0 ? '+' : '' }${ (parsedMetricDeltas.precision * 100).toFixed(1) }%

Precision

${ parsedMetricDeltas.recall >= 0 ? '+' : '' }${ (parsedMetricDeltas.recall * 100).toFixed(1) }%

Recall

${ parsedMetricDeltas.f1 >= 0 ? '+' : '' }${ (parsedMetricDeltas.f1 * 100).toFixed(1) }%

F1 Score

Label Suggestions

${ change }

Click to review suggested labels

${ parsedSuggestedLabels.filter(item => item.human_label !== item.revised_label).length }

Re-labels

${ Math.round(parsedSuggestedLabels.reduce((sum, item) => sum + item.zentropi_confidence, 0) / parsedSuggestedLabels.length * 100) }%

Confidence

${optimizeResults.afterText}

No suggested criteria yet.

Review carefully. This will overwrite your draft.

Test #${ currentLabelReviewItem.id }

${ currentLabelReviewIndex + 1 } of ${ parsedSuggestedLabels.length }

Content

Loading video...

Video unavailable

${ currentLabelReviewItem.content_text }

Label

Current Label

Yes No

from test set

Suggested Re-Label

Yes No

${ (currentLabelReviewItem.zentropi_confidence * 100).toFixed(0) }% confident

Accept Re-Label?

Reason

${ currentLabelReviewItem.decision_reasoning }

No more label suggestions available

Filter By:

Sort By:

${selectedExample.sampleId} Sample #${selectedExample.id}

${ currentExampleIndex + 1 } of ${ filteredExamples.length }

Image sample

Video sample

${selectedExample.content}

No content

Prediction

${selectedExample.predicted ? 'Yes' : 'No'}

${(selectedExample.confidence * 100).toFixed(0)}% confident

Expected

${selectedExample.expected ? 'Yes' : 'No'}

${selectedExample.isCorrect ? 'Correct' : 'Incorrect'}

Set Expected Label To:

Content

Loading image...

Image could not be loaded

Loading video...

Video could not be loaded

${selectedSample.text}

No content

Expected Label

Yes

Sample meets the criteria

No

Does not meet the criteria

Content

Drag and drop an image here, or

Browse

Drag and drop a video here, or

Browse

Max 50MB, ~60s

Expected Label

Yes

Sample meets the criteria

No

Does not meet the criteria

No Deployed Version Available

The creator hasn't deployed any versions of this labeler yet.

Check back later or contact the creator for help.

About this Labeler

${ labeler.description }

Created by ${labeler.username} unknown • ${ versions.filter(v => v.deployed).length } versions

Spot Check

Text tested

Loading image...

Drag & drop an image here

or click to select

Image tested

Loading video...

Drag & drop a video here

or click to select

Video tested

Predicted Label

${ (quickTestResult.confidence * 100).toFixed(0) }% confident

Save Test As...

Test Performance

Add tests to see performance metrics

Precision

${ benchmarkMetrics.precision ?? '-'}

Recall

${ benchmarkMetrics.recall ?? '-'}

F1 Score

${ benchmarkMetrics.f1 ?? '-'}

${samplesProcessed} of ${samplesTotal} complete

Optimize Labeler

${optimizeStatus}

Your Tests ${ testHistory.length } Tests are always private

ID	Content	Expected Label
${ testHistory.length - testHistory.indexOf(item) }	${ item.text }	Yes No

No Tests Available

Add test examples to evaluate your labeler's performance.

Tests are always private

Page ${ testHistoryCurrentPage } of ${ testHistoryTotalPages }

Danger Zone

Clear all test examples

This will remove all test examples and cannot be undone

Upload Test Set

Upload a CSV with pre-labeled examples for benchmarking

Processing row ${csvUploadProgress.row-1} of ${csvUploadProgress.total} Processing. May take a minute...

${csvTestStats.total} examples added

Error: ${bulkTestUploadError}

CSV Field Requirements (max 1000 rows)

content_text - Text to be labeled (required if no image or video content)
content_image_url - Public image URL (required if no text or video content)
content_video_url - Public video URL (required if no text or image content)
expected_label - '1' for Yes, '0' for No
sample_id - Optional ID for tracking

Download example CSV

Loading activity...

No Activity Yet

API calls in observe mode appear here as they happen.

Your API Calls (Observed)

Time	Content	Label	Confidence
${ formatActivityTime(log.created_at) }	${ log.content_text \|\| '(no content)' }	Yes No -	${ (log.confidence * 100).toFixed(0) }% -	In Tests

Name

Description

Visibility

Public

Anyone can use deployed versions of this labeler

Private

Only you can access this labeler

Danger Zone

Delete this labeler

Once deleted, it cannot be recovered

Labeler Deactivated

${labeler.name || 'Untitled Labeler'} by ${labeler.username} unknown

Fork Labeler

Share Labeler

Public Labeler Private Labeler

No Deployed Version Available

About this Labeler

Spot Check

Predicted Label

Save Test As...

Test Performance

Precision

${ benchmarkMetrics.precision ?? '-'}

Recall

${ benchmarkMetrics.recall ?? '-'}

F1 Score

${ benchmarkMetrics.f1 ?? '-'}

Optimize Labeler

Your Tests ${ testHistory.length } Tests are always private

No Tests Available

Danger Zone

Clear all test examples

Upload Test Set

CSV Field Requirements (max 1000 rows)

No Activity Yet

Your API Calls (Observed)

Public

Private

Danger Zone

Delete this labeler