Pretrained computer vision classifier

Identify bean species with one API call.

A pretrained bean species classifier that sorts an image into one of 10 categories — what species of bean it is. Use the bean species 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 bean species classifier

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

What this bean species classifier recognizes

A sample of the 26 labels this pretrained classifier chooses between.

Adzuki Bean
Black Bean
Black-Eyed Pea
Borlotti Bean
Cannellini Bean
Cowpea
Cranberry Bean
Fava Bean
Flageolet Bean
Great Northern Bean

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 bean species 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": "Adzuki Bean",
  "labelId": "label_...",
  "confidence": 0.92
}

Under the hood

Model type
Nyckel-trained

Trained on a Nyckel-curated dataset covering 10 bean species 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 bean species classification

Agricultural Quality Control

The bean species identifier can be utilized by agricultural companies to ensure the quality of their bean products. By quickly classifying bean species, companies can ensure compliance with standards and avoid costly mistakes in packaging and marketing.

Supply Chain Optimization

Distributors can use the identifier to categorize and streamline their inventory of different bean species. This data can improve logistics, enabling more efficient stock management and reducing waste due to mislabeling.

Biodiversity Research

Researchers studying plant biodiversity can use the bean species identifier to accurately classify field samples. This can enhance data accuracy in ecological studies, contributing to better conservation strategies.

Consumer Education Apps

Developers of food apps can integrate the bean species identifier to provide users with information about the beans they purchase. Users can learn about the nutritional benefits and culinary uses of different species, promoting informed food choices.

Food Fraud Detection

Food safety organizations can adopt the identifier to combat food fraud in the market. By verifying the species of beans being sold, they can prevent mislabeling and protect consumers from potentially harmful substitutes.

Culinary Innovation

Chefs and food technologists can leverage the identifier to explore new flavor combinations and improve recipes. Knowing the exact type of beans allows culinary professionals to experiment with various cooking techniques and presentations.

Sustainable Farming Practices

Farmers can use the identifier to select the most appropriate bean species for their specific local conditions. By assessing species that thrive in their environment, they can enhance yield while promoting sustainable agricultural practices.

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 bean species 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 bean species 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.