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Pictograph

Pictograph

Label images, train vision models, run them anywhere.

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Docs · Quick start · API reference · App


Four ways in. Same API underneath, so you can move between them.

Python pip install pictograph, this repo
CLI pip install "pictograph[cli]" · reference
REST Any language, X-API-Key header · reference
Claude skill Let an agent drive it · guide

Quick start

pip install pictograph

Upload a directory, draft labels from a text prompt, review them, then export and train.

from pictograph import AnnotateReport, Client, TrainingRun, UploadReport

client = Client()  # reads PICTOGRAPH_API_KEY

uploaded: UploadReport = client.images.upload_from_directory(
    dataset_name="road-signs",
    directory="./road_signs",
)
print(f"{uploaded.images_uploaded} images uploaded")

labelled: AnnotateReport = client.auto_annotate.dataset(
    dataset_name="road-signs",
    classes=[("stop_sign", "bbox"), ("yield", "bbox")],
)
print(f"{labelled.annotations_added} annotations added")

# They are drafts: a person reviews them before you train. Start with the least
# confident (the app's review stage approves an image or sends it back).
for image in client.images.list(
    dataset_name="road-signs",
    min_confidence_lt=0.5,
):
    print("review first:", image.filename)

client.exports.create(
    dataset_name="road-signs",
    name="road-signs-v1",
    format="pictograph",
    include_images=True,
    wait=True,
)

run: TrainingRun = client.training.create(
    dataset_name="road-signs",
    export_name="road-signs-v1",
    pipeline_type="yolox",
    name="road-signs-detector",
)
print("Trained model:", run.model_id or run.status)

A class is a (name, output_type) pair, where the output type is bbox, polygon or tag, because auto-annotation has to know what shape to produce. Training runs on an export, never on a dataset directly: you create the export, see what went into it, then train that.

The same thing from the shell:

pictograph login
pictograph images upload-directory road-signs ./road_signs
pictograph auto-annotate batch road-signs --images 001.jpg,002.jpg --classes "stop_sign:bbox"
pictograph images list road-signs --min-confidence-lt 0.5    # review the drafts, least confident first
pictograph exports create road-signs --name road-signs-v1 -f pictograph --include-images
pictograph train start road-signs road-signs-v1 --pipeline yolox --gpu a10g
pictograph models download "road-signs-detector" -o ./yolox.onnx

Or over REST:

curl -s https://api.pictograph.io/api/v1/developer/datasets/ \
  -H "X-API-Key: $PICTOGRAPH_API_KEY"

Resources are addressed by name everywhere. There are no IDs to look up first.

Typed

Responses are Pydantic models. Failures are typed exceptions.

from pictograph.exceptions import NotFoundError, PaymentRequiredError, RateLimitError

try:
    client.datasets.get(name="does-not-exist")
except NotFoundError:
    ...

Transient failures retry with backoff, and writes carry an idempotency key so a retry cannot apply twice.

Async

Every method has an async twin with the same signature.

import asyncio
from pictograph import AsyncClient

async def main() -> None:
    async with AsyncClient() as client:
        datasets = await client.datasets.list(limit=5)
        print([d.name for d in datasets])

asyncio.run(main())

Run models on your own hardware

from pictograph import get_model

model  = get_model(name="signs-detector", task="object_detection")
result = model.predict(image="test.jpg")

Weights download and cache on first use. ONNX, PyTorch, ExecuTorch and TensorRT are supported targets. See local inference.

Agents

pip install "pictograph[agents]"
pictograph agents install-skill --target claude-code
from pictograph.agents import Toolkit

tools = Toolkit(client).as_anthropic_tools()   # or .as_openai_tools()

Offline utilities

No network needed, so an existing local dataset can be brought into typed models before uploading anything.

pictograph.formats Read and write COCO, YOLO, Pascal VOC
pictograph.metrics Score detections against ground truth by IoU
pictograph.augment Transform images, remapping annotation geometry with them
pictograph.tile Slice images into a grid, clipping annotations per tile

Documentation

Full reference at pictograph.io/docs.

Quick start · Installation · Authentication · API reference · CLI · Agents · Annotation format · Auto-annotation · Local inference · Deployments · Export conversion · Async client · Error handling · Rate limits

Requires Python 3.10 or newer. Extras: [cli], [agents], [inference], [torch], [all].

Contributing, security, license

CONTRIBUTING.md has the development setup and the checks a change must pass. Report vulnerabilities per SECURITY.md, not as a public issue.

The SDK is MIT licensed, see LICENSE. Two model architectures are vendored so local inference works without pulling their full training stacks; both are Apache-2.0 and keep their own licence and attribution alongside the code:

Component Upstream Licence
pictograph.inference._rfdetr RF-DETR (Roboflow) Apache-2.0 · NOTICE
pictograph.inference._yolox YOLOX (Megvii) Apache-2.0 · NOTICE

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