# Pictograph > Developer-first computer vision platform. Annotate images with SAM3, train custom models, and deploy inference APIs from one API, SDK, and CLI. Pictograph turns directories of images into trained, deployed computer-vision models with minimal hand-annotation. The same REST API backs a typed Python SDK ("pip install pictograph"), a CLI, and a 37-tool agent registry for Claude and OpenAI. Pricing is USD-denominated compute credits with a free tier and no credit card required. ## Product - [Auto-annotation (SAM3)](https://pictograph.io/auto-annotate): Point, box, and text prompts; single image or async batch over a dataset. Outputs editable polygons and boxes. - [Training](https://pictograph.io/train): Train YOLOX, RF-DETR, Segformer, and classification models on managed GPUs. Returns model weights. - [Deployments](https://pictograph.io/deployments): Serve a trained model as one authenticated /predict endpoint, billed by uptime, with pause and resume. - [Workflows](https://pictograph.io/workflows): Visual node-graph pipelines over images, video, or datasets with object tracking, counting, dwell time, and webhook sinks. - [Explore](https://pictograph.io/explore): Public datasets and trained models to star, comment on, and fork. - [Pricing](https://pictograph.io/pricing): USD compute credits, four tiers, free to start. - [Glossary](https://pictograph.io/glossary): Plain-language definitions of computer-vision terms - annotation shapes, dataset formats, training, accuracy metrics, and inference. ## Documentation - [Docs home](https://pictograph.io/docs) - [Quickstart](https://pictograph.io/docs/quick-start) - [Installation](https://pictograph.io/docs/installation) - [API reference](https://pictograph.io/docs/api-reference) - [Agents (Claude and OpenAI)](https://pictograph.io/docs/agents) - [Docs index for LLMs](https://pictograph.io/docs/llms.txt) - [Full documentation bundle](https://pictograph.io/docs/llms-full.txt) ## Guides - [Blog](https://pictograph.io/blog): Practical guides on annotation, training, and shipping vision models. - [Polygon vs bounding box annotation](https://pictograph.io/blog/polygon-vs-bounding-box): When to use each, with tradeoffs. - [Train YOLOX and export to ONNX](https://pictograph.io/blog/train-yolox-export-onnx): A no-infrastructure walkthrough. ## Datasets and models - [Explore](https://pictograph.io/explore): Browse public datasets and trained models to star, comment on, and fork. - [Public datasets](https://pictograph.io/datasets): Curated, downloadable computer-vision datasets (COCO, YOLO, Pascal VOC, CVAT, and more). - [Trained models](https://pictograph.io/models): Public models with ONNX weights and reported metrics. - [Browse by task](https://pictograph.io/explore/task): Public datasets and models grouped by CV task. - [Object detection datasets and models](https://pictograph.io/explore/task/object-detection): Bounding-box datasets and YOLOX / RF-DETR detectors. - [Image segmentation datasets and models](https://pictograph.io/explore/task/segmentation): Polygon-mask datasets and instance / semantic segmentation models. - [Keypoint and pose datasets and models](https://pictograph.io/explore/task/keypoint-detection): COCO-keypoint datasets and RF-DETR keypoint models. - [Pictograph on Hugging Face](https://huggingface.co/pictograph): Datasets and models mirrored to the Hub with ready-to-run weights. ## Compare - [Pictograph vs Roboflow](https://pictograph.io/compare/roboflow-alternative) - [Pictograph vs CVAT](https://pictograph.io/compare/cvat-alternative) - [Pictograph vs V7](https://pictograph.io/compare/v7-alternative) - [Pictograph vs Labelbox](https://pictograph.io/compare/labelbox-alternative) - [Pictograph vs Ultralytics](https://pictograph.io/compare/ultralytics-hub-alternative) - [Pictograph vs SuperAnnotate](https://pictograph.io/compare/superannotate-alternative) - [Pictograph vs Encord](https://pictograph.io/compare/encord-alternative) - [Pictograph vs Supervisely](https://pictograph.io/compare/supervisely-alternative) - [Switching from Roboflow](https://pictograph.io/compare/switching-from-roboflow): step-by-step dataset migration guide. - [Switching from V7](https://pictograph.io/compare/switching-from-v7): step-by-step V7 Darwin dataset migration guide. ## Optional - [GitHub](https://github.com/pictograph-io) - [Python SDK on GitHub](https://github.com/pictograph-io/pictograph-sdk) - [Hugging Face](https://huggingface.co/pictograph) - [PyPI](https://pypi.org/project/pictograph/) - [Agent tool registry (JSON Schema)](https://api.pictograph.io/api/v1/developer/tools.json)