Pretrained computer vision classifier

Identify shark species with one API call.

A pretrained shark species classifier that sorts an image into one of 2 categories — which species of shark it is. Use the shark species 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 shark species classifier

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

What this shark species classifier recognizes

A sample of the 25 labels this pretrained classifier chooses between.

Great White Shark
Hammerhead Shark

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 shark 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": "Great White Shark",
  "labelId": "label_...",
  "confidence": 0.92
}

Under the hood

Model type
Nyckel-trained

Trained on a Nyckel-curated dataset covering 2 shark 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 shark species classification

Fishery Management

Fisheries can utilize the 'shark species' identifier to accurately classify types of sharks caught. This not only helps in managing fishing quotas but also enables sustainable practices by identifying and releasing endangered species.

Educational Institutions

Schools, colleges and research organizations can utilize the tool in biological and ecological studies. Detailed data about different shark species densities area-wise can lead to new discoveries and promote education about marine ecology.

Marine Conservation Efforts

Conservation organizations can use the tool to track shark populations and species distribution. It helps in identifying endangered species and also supports decision-making related to conservation efforts.

Wildlife Control & Management

The tool can be used by wildlife control agencies to monitor species distribution in different areas. This can help in managing human-shark encounters and mitigate potential harm.

Aquariums & Public Zoos

The 'shark species' identifier can be used to correctly label the species on display, leading to better visitor education. It can also be used in the acquisition of new species and in breeding programs to ensure genetic diversity.

Seafood Industry Audit

Authorities can use this technology in monitoring and audit functions to ensure prohibited species or juvenile individuals of shark species aren’t being caught and sold illegally.

Coastal Tourism & Adventure Sports

Companies offering underwater diving experiences can use this tool to identify shark species inhabiting local waters. This knowledge can enhance the overall customer experience and safety, by informing divers of what species they might encounter.

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 shark 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 shark 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.