Pretrained computer vision classifier
Identify the color of a bicycle with one API call.
A pretrained the color of a bicycle classifier that sorts an image into one of 10 categories — the color of a bicycle. Use the the color of a bicycle API immediately, no training required, then adapt it to your own data when you need more.
Try the the color of a bicycle classifier
Drop in a photo and get the prediction back. No signup, no setup.
What this the color of a bicycle classifier recognizes
A sample of the 15 labels this pretrained classifier chooses between.
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 the color of a bicycle API
Get your own copy of this classifier behind your own endpoint — callable from any HTTP client:
curl -X POST "https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke" \
-H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
-H "Content-Type: application/json" \
-d '{"data": "https://example.com/photo.jpg"}'import requests
response = requests.post(
"https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke",
headers={"Authorization": "Bearer YOUR_ACCESS_TOKEN"},
json={"data": "https://example.com/photo.jpg"},
)
print(response.json())const response = await fetch("https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke", {
method: "POST",
headers: {
"Authorization": "Bearer YOUR_ACCESS_TOKEN",
"Content-Type": "application/json",
},
body: JSON.stringify({ data: "https://example.com/photo.jpg" }),
});
console.log(await response.json());$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, '{"data": "https://example.com/photo.jpg"}');
$headers = array();
$headers[] = 'Authorization: Bearer YOUR_ACCESS_TOKEN';
$headers[] = 'Content-Type: application/json';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$result = curl_exec($ch);
curl_close($ch);
echo $result;Example response
{
"labelName": "Beige",
"labelId": "label_...",
"confidence": 0.92
}Under the hood
Trained on a Nyckel-curated dataset covering 10 the color of a bicycle categories, served on Nyckel's own infrastructure — your image stays on Nyckel.
Send an image URL or file to the invoke endpoint; the response is a label with a confidence score.
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.
Where teams use the color of a bicycle classification
Retail Inventory Management
The color of a bicycle identifier can assist retailers in managing their inventory by quickly classifying and categorizing bicycles based on color. This capability can streamline stock management, ensuring that the right colors are available in appropriate quantities for customer demand.
E-commerce Product Listing
Online retailers can use this function to automatically tag and classify bicycles according to their color during the product listing process. This enhances searchability and improves the customer experience by allowing users to filter products by color when shopping online.
Market Trend Analysis
Bicycle manufacturers and suppliers can utilize color classification to analyze market trends and consumer preferences regarding bicycle colors. This can inform future product development and marketing strategies by revealing which colors are popular among consumers.
Personalized Marketing
Companies can leverage the color identifier to create personalized marketing campaigns based on customer preferences. By analyzing customer purchase history, businesses can recommend bicycles in colors that align with individual tastes, boosting engagement and sales.
Quality Control in Manufacturing
Manufacturing facilities can implement the color classification function as part of their quality control processes. By automatically verifying the color of bicycles during production, companies can ensure that products meet specifications and reduce the risk of defects.
Insurance Claim Processing
Insurance companies can use this function in processing bicycle-related claims. By accurately identifying the color of the bicycle involved in an accident or theft, insurers can verify claims more efficiently and assess potential payouts.
Urban Planning and Infrastructure Development
City planners can utilize color classification data to understand the popularity of different bicycle colors in urban areas. This information can aid in designing bike lanes and parking facilities that align with community preferences and promote cycling as a sustainable transportation option.
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 the color of a bicycle 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.
Related classifiers
Ready to classify the color of a bicycle 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.