Pretrained computer vision classifier

Identify if a document is edited with one API call.

A pretrained if a document is edited classifier that sorts an image into one of 2 categories. Use the if a document is edited API immediately, no training required, then adapt it to your own data when you need more.

Pretrained · Nyckel-trained 2 labels out of the box Image input

Try the if a document is edited classifier

Drop in a photo and get the prediction back. No signup, no setup.

What this if a document is edited classifier recognizes

A sample of the 2 labels this pretrained classifier chooses between.

Edited Document
Original Document

Need a label that isn't here? Clone the classifier into your Nyckel console and edit the label set to fit your data.

Call the if a document is edited API

Once you've added this classifier to your console, you get your own copy of it behind your own endpoint. Invoke it with any HTTP client:

curl

curl -X POST "https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke" \
  -H "Authorization: Bearer $NYCKEL_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"data": "https://example.com/photo.jpg"}'

Python

import requests

# Get an access token: https://www.nyckel.com/docs/api/overview/authentication/
token = "YOUR_ACCESS_TOKEN"

response = requests.post(
    "https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke",
    headers={"Authorization": "Bearer " + token},
    json={"data": "https://example.com/photo.jpg"},
)
print(response.json())

Example response

{
  "labelName": "Edited Document",
  "labelId": "label_...",
  "confidence": 0.92
}

Under the hood

Model type
Nyckel-trained

Trained on a Nyckel-curated dataset covering 2 if a document is edited categories, served on Nyckel's own infrastructure — your image stays on Nyckel.

Input
Image

Send an image URL or file to the invoke endpoint; the response is a label with a confidence score.

Make it yours
Adaptable

Clone it, then correct predictions and add your own samples in the console — Nyckel retrains automatically, turning this into a custom model tuned to your data.

More than a demo: this page is one of thousands of pretrained functions on Nyckel, an ML classification platform. You can invoke classifiers by API, review predictions, correct labels, collect samples from production traffic, and promote any pretrained function to a private custom model — without changing your integration.

Where teams use if a document is edited classification

Document Version Control

Organizations can use the identifier to manage version histories of documents effectively. By recognizing when a document has been edited, teams can ensure that they are always working with the most current and relevant information, thus minimizing errors.

Compliance Monitoring

Companies can employ the identifier to ensure compliance with regulatory standards that require document integrity. By flagging edited documents, businesses can track changes and maintain audit trails for legal and compliance purposes.

Content Approval Workflows

The identifier can be integrated into content management systems to trigger approval workflows for edited documents. When a document is modified, it can automatically notify stakeholders for review, helping to streamline collaboration and maintain quality control.

Historical Document Analysis

Researchers and analysts can utilize the identifier to analyze changes made to important documents over time. This feature allows for retrospective insights into edits, helping organizations understand decision-making processes and trends.

Security and Access Control

The document edited identifier can be used as part of a security framework to monitor unauthorized changes. By detecting edits, organizations can safeguard sensitive information and enforce access controls more effectively.

Content Personalization

Marketing teams can leverage the identifier to tailor content strategies by analyzing which documents were frequently edited. This can provide insights into customer preferences, enabling more effective targeting and engagement.

Training and Development

Educational institutions can use the identifier to track edits in training materials or coursework. By doing so, they can evaluate the effectiveness of learning resources and improve training programs based on the frequency and nature of document edits.

Common questions

What's the difference between a zero-shot and a Nyckel-trained classifier?

A zero-shot classifier uses a large foundation model's general knowledge to pick between your labels — no task-specific training, so new or edited labels work immediately. A Nyckel-trained classifier has been trained on labeled examples and runs on Nyckel's own infrastructure, which typically makes it faster, cheaper per call, and more accurate on data that resembles its training set. The "Under the hood" section on this page shows which kind this classifier is, and any classifier can be adapted into a trained one by adding your own examples.

How do I know whether this will work for my application?

Honestly: we can't know in advance — it depends on your data stream and how closely it resembles what this classifier has seen. The reliable way to find out is to measure it on your own data: start invoking the classifier with real traffic, or upload and annotate a set of images in the console — make sure they look like your production data, not idealized examples. Nyckel's evaluation metrics then show you exactly how it performs on that data before you rely on it.

What happens when it makes a mistake?

No classifier is perfect, so Nyckel is built around the correction loop: invokes can be captured for review, you confirm or correct predictions in the console, and corrections become training data. Over time the model adapts to your data distribution — accuracy on your traffic improves with use rather than staying fixed.

Do I need training data to get started?

No. This if a document is edited classifier works out of the box — clone it into your console and you'll have your own API endpoint in under a minute. Training data only enters the picture when you want to adapt it: your corrected predictions and uploaded samples improve the model, and you can also edit the label set to match your needs.

What does it cost to try?

Trying the classifier on this page is free with no signup. Cloning it requires a free account, and the free tier covers your first API calls each month — see nyckel.com/pricing for current limits and paid tiers.

Ready to classify if a document is edited at scale?

Add this pretrained classifier to your Nyckel console — you'll get a live API endpoint in under a minute, and a path to a custom model when you need one.