Labelbox: Best AI Tool for AI API, Latest Features & Pricing Plans 2026

Intro

What is Labelbox?

Labelbox (often searched as label box or labelxbox) is a comprehensive data factory platform designed for AI teams to build, operate, and staff their machine learning workflows. It combines advanced data labeling software with managed services to generate high-quality training data and conduct rigorous model evaluation. Labelbox AI capabilities accelerate critical generative AI tasks like supervised fine-tuning (SFT), reinforcement learning from human feedback (RLHF), and red teaming. The ecosystem integrates seamlessly with Alignerr, an exclusive network of expert AI trainers, to provide domain-specific human data alignment for frontier and task-specific models.

Labelbox at a glance

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Best Labelbox use cases by task, role, industry, and platform

These use cases show where Labelbox fits best, ranked by fit score before popularity or pricing.

Data LabelingAnnotate text, images, and audio files to create high-quality training datasets for machine learning models.100 Model EvaluationAssess model performance, compare benchmark metrics, test specific prompts, and analyze output accuracy across different datasets.95 Model Fine-TuningAdapt existing pre-trained models with custom datasets to achieve higher accuracy and domain-specific performance.95 AI Training DataCollect, clean, label, and format diverse datasets to train machine learning models for specific business use cases.95 Data AnnotationLabel, tag, and categorize text, images, and audio datasets to train machine learning models efficiently.95 Human AlignmentEvaluate, refine, and steer machine outputs to match specified human values, safety guidelines, and precise intent instructions.90 Data CurationCollect, clean, organize, and format raw datasets to prepare high-quality information for training models or generating reports.90 Image AnnotationLabel, tag, and segment visual data like bounding boxes or polygons to prepare high-quality datasets for machine learning models.90 Red-TeamingSimulate adversarial attacks, identify security vulnerabilities, and test system defenses against complex, real-world cyber threats.85 AI Model TrainingPrepare datasets, configure hyperparameters, monitor loss metrics, and optimize weights to build accurate neural networks for specific applications.85

Pricing

Labelbox Pricing Plans

Compare Labelbox free options, Labelbox paid pricing plans, and usage notes before you choose the best way to use this AI tool in 2026.

Contact sales for pricing details

Pricing updated:Jun 11, 2026

Features

Labelbox AI Features

Comprehensive data labeling tools for images, video, text, PDF, and audioAlignerr Connect for hiring specialized, domain-expert AI trainersEnd-to-end GenAI solutions including Model Evaluation, Supervised Fine-Tuning (SFT), RLHF, and Red TeamingAdvanced data curation and management features, including labelbox features ontlogoiesPublic leaderboards for evaluating image, audio, and video generative models

Pros & Cons

Labelbox Pros and Cons

Pros

All-in-one scalable architecture to operate, build, or staff AI data factories
Access to a vetted network of world-class AI trainers (Alignerr)
Proven to significantly boost data quality and improve model development accuracy up to 35%
Robust video processing capabilities supported by extensive labelbox video docs

Limitations

Enterprise features and full-scale data factory capabilities require custom pricing agreements
Independent contractors may occasionally experience periods with no projects alignerr available depending on market demand

Labelbox FAQ

You can explore opportunities via labelbox careers or check the Alignerr portal. Once registered, you can access your dashboard through the alignerr login page. If you run into a dry spell where there are no projects alignerr available, it typically means the system is calibrating new task allocations based on project type and budget requirements.

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Labelbox

What is Labelbox?

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