Alternatives to Fashion Mnist

Open-source annotation platform for text, image, audio, video, 3D data and AI agent traces — configured in YAML, self-hosted for free.

CVAT is an open-source data annotation platform for image, video, 3D point cloud, and audio labeling.

Offline AI image annotation with local SAM2, SAM3 and YOLO-World — one-time purchase from $49.

Human-recorded computer-use datasets that teach AI agents to operate real software the way people do.

Velvet sources, verifies, and delivers curated video datasets so AI labs can train interactive and world models with spatial reasoning.

Snorkel AI builds the expert-curated datasets, evaluation rubrics, and runnable environments that fix where frontier models and agents break.

Open-source Python framework for generating training datasets from sandboxed tool execution traces

BioStack Platforms supplies structured clinical datasets and RL environments for healthcare AI teams.

AfterQuery captures expert reasoning and structures it into SFT, RL rubric, agent, and computer-use training data for frontier models.

Cortex AI supplies real-workplace egocentric video and robot trajectory data for training embodied AI and robot foundation models.

Early-stage San Francisco robotics lab building policies for robots that do real work, and hiring its first researchers.

GameEngineBench scores frontier AI models on real game-engine programming — see which model can actually ship UE5 code.

Prolific connects AI and research teams to 300,000+ verified participants for human feedback, preference tuning, and safety evaluations.

Autodistill auto-labels image datasets with foundation models, then trains small vision models you own.

Structured3D is a free 3.5K-design synthetic dataset for 3D structure and room layout research.

Open-source multimodal data engine that turns raw video, images, and audio into training-ready AI datasets.

Free MIT-licensed Python CLI that exports AI coding assistant chat history from your local disk into one normalized JSONL dataset.

Raiinmaker sources rights-cleared custom video datasets and runs real-time human evaluation for generative AI video models.

Agent training data, RL environments, and safety red-teaming built by Toloka for LLM and agent teams

Buy pre-collected AI training datasets from 900+ domains, or pull live web data at inference time through Bright Data's scraping APIs and

LabelGPT auto-labels images from a text prompt—zero-shot bounding boxes and segmentation in minutes.

Custom audio datasets for training and evaluating voice AI, scoped to your model's spec.

Spotlight is Renumics' open-source Python library for visualizing and curating unstructured datasets as interactive similarity maps.

Markup turns PDFs and long text into structured NLP and ML datasets with AI-assisted annotation in the browser

Licensed audio datasets for teams training speech recognition, translation, and voice interaction models

Open-source Python library to load, stream, and preprocess Hugging Face datasets for AI model training

Browser and offline desktop data labeling for image, text, document, and video annotation.

Enterprise dataset management platform for AI training teams

Applied AI for aviation: pilot-controller training datasets, the Y4 Aviation Understanding Model, and real-time runway incursion risk detection.

Somali-language AI datasets, speech models, and benchmarks — plus courses that teach you to use them