kitio.aiAdded Oct 29, 2026
T-Rex Label
FreemiumBrowser-based AI image annotation with zero-shot detection
What is T-Rex Label?
T-Rex Label is an online data labeling tool for computer vision that uses visual-prompt detection models to find objects automatically. It is aimed at engineers building image datasets who want to label quickly without fine-tuning a model first.
You draw a box around an object and the tool detects similar objects across the image, then applies the same prompt to other images for batch labeling. Smart segmentation, smart boxes, cross-image reasoning and AI pre-annotation are the main features, and it runs in the browser with nothing to install.
It supports models such as Grounding DINO, DINO-X and T-Rex, and works with COCO and YOLO dataset formats. The site lists compatibility with Kaggle, Roboflow, Hugging Face, ModelScope, Label Studio, FiftyOne, PyTorch, TensorFlow and Keras, and shows use cases from agriculture to logistics.
Features
- Visual-prompt detection
- Smart segmentation
- Cross-image batch labeling
- AI pre-annotation
- COCO and YOLO formats
Tags
Releases
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Organization
IDEA Research
🇨🇳 China
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- Not listed
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Pros and cons
Pros
- No fine-tuning needed to start labeling
- One prompt can label many images
- Nothing to install
Cons
- Homepage is written in Chinese
- Plan details are not in the evidence
- Focused on image annotation only
Prompts & results
No prompts yet. Add your own prompt and output to help others use this tool.
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Q&A
What is T-Rex Label?
T-Rex Label is an online data labeling tool for computer vision that uses visual-prompt detection models to find objects automatically. It is aimed at engineers building image datasets who want to label quickly without fine-tuning a model first.
Which annotation formats does T-Rex Label support?
It works with COCO and YOLO dataset formats and offers bounding box and segmentation annotation.
Do I need to train a model first?
No. The tool includes open-set detection models that work out of the box, so you can label without fine-tuning.
How much does T-Rex Label cost?
T-Rex Label is freemium.
Is there a free version of T-Rex Label?
Yes. T-Rex Label has a free plan, and paid plans add more usage and features.
What are the main features of T-Rex Label?
Visual-prompt detection, Smart segmentation, Cross-image batch labeling, AI pre-annotation, COCO and YOLO formats.
Who makes T-Rex Label?
T-Rex Label is made by IDEA Research.
What are the best alternatives to T-Rex Label?
Popular alternatives include Roboflow, Labelbox, Encord.