Pretrained computer vision classifier

Identify check date visibility with one API call.

A pretrained check date visibility classifier that sorts an image into one of 10 categories — what dates are visible. Use the check date visibility API immediately, no training required, then adapt it to your own data when you need more.

Pretrained · Nyckel-trained 10 labels out of the box Image input

Try the check date visibility classifier

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

What this check date visibility classifier recognizes

A sample of the 10 labels this pretrained classifier chooses between.

Blurred
Clear
Faded
Fully Visible
Illegible
Invisible
Obscured
Partially Clear
Partially Visible
Visible With Distortion

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 check date visibility 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": "Blurred",
  "labelId": "label_...",
  "confidence": 0.92
}

Under the hood

Model type
Nyckel-trained

Trained on a Nyckel-curated dataset covering 10 check date visibility 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 check date visibility classification

Product Authentication

Businesses can use the 'check date visibility' function to verify the authenticity of products by analyzing images of packaging. This ensures that the expiration date or manufacturing date is visible and clearly displayed, helping to prevent counterfeit products from circulating in the market.

Inventory Management

Retailers can implement this image classification function to automate the monitoring of stock levels. By checking images of products on shelves, it can confirm that items are within their sell-by dates, ensuring compliance and maximizing sales.

Food Safety Compliance

Restaurants and food retailers can utilize this function to regularly check food products' expiration dates by analyzing images. This helps maintain food safety standards, ensuring that no expired items are served to customers, thus reducing liability.

Quality Control in Manufacturing

Manufacturing companies can deploy this feature in their quality control process. By analyzing images of products as they are packaged, the function ensures that all necessary dates are correctly printed and visible, enhancing overall product quality.

E-commerce Product Listings

E-commerce platforms can integrate this classification function to ensure that product images meet quality standards. It can verify that key information such as expiration dates or availability dates are clearly visible in listings, improving customer trust and satisfaction.

Supply Chain Transparency

Logistics companies can leverage the image classification function to monitor the condition of products as they move through the supply chain. By checking date visibility on packaging, they ensure that products are handled properly and meet required delivery timelines.

Regulatory Compliance Audits

Businesses in regulated industries can use this function during internal audits to verify that date visibility requirements are consistently met. By analyzing photographic evidence from different stages of production and distribution, companies can ensure compliance with industry regulations and avoid potential fines.

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 check date visibility 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 check date visibility 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.