Instructions to use Keyven/german-ocr-3 with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use Keyven/german-ocr-3 with Transformers:

# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("image-text-to-text", model="Keyven/german-ocr-3")
messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "url": "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/p-blog/candy.JPG"},
            {"type": "text", "text": "What animal is on the candy?"}
        ]
    },
]
pipe(text=messages)

# Load model directly
from transformers import AutoModel
model = AutoModel.from_pretrained("Keyven/german-ocr-3", dtype="auto")

llama-cpp-python

How to use Keyven/german-ocr-3 with llama-cpp-python:

# !pip install llama-cpp-python

from llama_cpp import Llama

llm = Llama.from_pretrained(
	repo_id="Keyven/german-ocr-3",
	filename="german-ocr-3-Q4_K_M.gguf",
)

llm.create_chat_completion(
	messages = [
		{
			"role": "user",
			"content": [
				{
					"type": "text",
					"text": "Describe this image in one sentence."
				},
				{
					"type": "image_url",
					"image_url": {
						"url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg"
					}
				}
			]
		}
	]
)

Notebooks
Google Colab
Kaggle
Local Apps

llama.cpp

How to use Keyven/german-ocr-3 with llama.cpp:

Install from brew

brew install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama-server -hf Keyven/german-ocr-3:Q4_K_M
# Run inference directly in the terminal:
llama-cli -hf Keyven/german-ocr-3:Q4_K_M

Install from WinGet (Windows)

winget install llama.cpp
# Start a local OpenAI-compatible server with a web UI:
llama-server -hf Keyven/german-ocr-3:Q4_K_M
# Run inference directly in the terminal:
llama-cli -hf Keyven/german-ocr-3:Q4_K_M

Use pre-built binary

# Download pre-built binary from:
# https://github.com/ggerganov/llama.cpp/releases
# Start a local OpenAI-compatible server with a web UI:
./llama-server -hf Keyven/german-ocr-3:Q4_K_M
# Run inference directly in the terminal:
./llama-cli -hf Keyven/german-ocr-3:Q4_K_M

Build from source code

git clone https://github.com/ggerganov/llama.cpp.git
cd llama.cpp
cmake -B build
cmake --build build -j --target llama-server llama-cli
# Start a local OpenAI-compatible server with a web UI:
./build/bin/llama-server -hf Keyven/german-ocr-3:Q4_K_M
# Run inference directly in the terminal:
./build/bin/llama-cli -hf Keyven/german-ocr-3:Q4_K_M

Use Docker

docker model run hf.co/Keyven/german-ocr-3:Q4_K_M

LM Studio
Jan

vLLM

How to use Keyven/german-ocr-3 with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "Keyven/german-ocr-3"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "Keyven/german-ocr-3",
		"messages": [
			{
				"role": "user",
				"content": [
					{
						"type": "text",
						"text": "Describe this image in one sentence."
					},
					{
						"type": "image_url",
						"image_url": {
							"url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg"
						}
					}
				]
			}
		]
	}'

Use Docker

docker model run hf.co/Keyven/german-ocr-3:Q4_K_M

SGLang

How to use Keyven/german-ocr-3 with SGLang:

Install from pip and serve model

# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
    --model-path "Keyven/german-ocr-3" \
    --host 0.0.0.0 \
    --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "Keyven/german-ocr-3",
		"messages": [
			{
				"role": "user",
				"content": [
					{
						"type": "text",
						"text": "Describe this image in one sentence."
					},
					{
						"type": "image_url",
						"image_url": {
							"url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg"
						}
					}
				]
			}
		]
	}'

Use Docker images

docker run --gpus all \
    --shm-size 32g \
    -p 30000:30000 \
    -v ~/.cache/huggingface:/root/.cache/huggingface \
    --env "HF_TOKEN=<secret>" \
    --ipc=host \
    lmsysorg/sglang:latest \
    python3 -m sglang.launch_server \
        --model-path "Keyven/german-ocr-3" \
        --host 0.0.0.0 \
        --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "Keyven/german-ocr-3",
		"messages": [
			{
				"role": "user",
				"content": [
					{
						"type": "text",
						"text": "Describe this image in one sentence."
					},
					{
						"type": "image_url",
						"image_url": {
							"url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg"
						}
					}
				]
			}
		]
	}'

Ollama
How to use Keyven/german-ocr-3 with Ollama:
```
ollama run hf.co/Keyven/german-ocr-3:Q4_K_M
```

Unsloth Studio new

How to use Keyven/german-ocr-3 with Unsloth Studio:

Install Unsloth Studio (macOS, Linux, WSL)

curl -fsSL https://unsloth.ai/install.sh | sh
# Run unsloth studio
unsloth studio -H 0.0.0.0 -p 8888
# Then open http://localhost:8888 in your browser
# Search for Keyven/german-ocr-3 to start chatting

Install Unsloth Studio (Windows)

irm https://unsloth.ai/install.ps1 | iex
# Run unsloth studio
unsloth studio -H 0.0.0.0 -p 8888
# Then open http://localhost:8888 in your browser
# Search for Keyven/german-ocr-3 to start chatting

Using HuggingFace Spaces for Unsloth

# No setup required
# Open https://huggingface.co/spaces/unsloth/studio in your browser
# Search for Keyven/german-ocr-3 to start chatting

Pi new

How to use Keyven/german-ocr-3 with Pi:

Start the llama.cpp server

# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama-server -hf Keyven/german-ocr-3:Q4_K_M

Configure the model in Pi

# Install Pi:
npm install -g @mariozechner/pi-coding-agent
# Add to ~/.pi/agent/models.json:
{
  "providers": {
    "llama-cpp": {
      "baseUrl": "http://localhost:8080/v1",
      "api": "openai-completions",
      "apiKey": "none",
      "models": [
        {
          "id": "Keyven/german-ocr-3:Q4_K_M"
        }
      ]
    }
  }
}

Run Pi

# Start Pi in your project directory:
pi

Hermes Agent new

How to use Keyven/german-ocr-3 with Hermes Agent:

Start the llama.cpp server

# Install llama.cpp:
brew install llama.cpp
# Start a local OpenAI-compatible server:
llama-server -hf Keyven/german-ocr-3:Q4_K_M

Configure Hermes

# Install Hermes:
curl -fsSL https://hermes-agent.nousresearch.com/install.sh | bash
hermes setup
# Point Hermes at the local server:
hermes config set model.provider custom
hermes config set model.base_url http://127.0.0.1:8080/v1
hermes config set model.default Keyven/german-ocr-3:Q4_K_M

Run Hermes

hermes

Docker Model Runner
How to use Keyven/german-ocr-3 with Docker Model Runner:
```
docker model run hf.co/Keyven/german-ocr-3:Q4_K_M
```

Lemonade

How to use Keyven/german-ocr-3 with Lemonade:

Pull the model

# Download Lemonade from https://lemonade-server.ai/
lemonade pull Keyven/german-ocr-3:Q4_K_M

Run and chat with the model

lemonade run user.german-ocr-3-Q4_K_M

List all available models

lemonade list

german-ocr-3 / README.md

Keyven

Upload README.md with huggingface_hub

436b8d3 verified 20 days ago

6.48 kB

language:
  - de
  - en
license: apache-2.0
library_name: transformers
pipeline_tag: image-text-to-text
tags:
  - german
  - deutsch
  - ocr
  - vision
  - document-ai
  - invoice
  - rechnung
  - structured-extraction
  - json-extraction
  - kie
  - ollama
  - vllm
  - llama-cpp
  - apache-2.0
inference: true

German-OCR-3

Deutsche Vision-OCR. Kompakt. Lokal. Open Source.

Was ist German-OCR-3?

German-OCR-3 ist eine kompakte, schnelle und voll lokal lauffähige Vision-OCR-Distribution für deutsche Geschäftsdokumente — Rechnungen, Briefe, Formulare, Quittungen, Bescheide. Aus dem Bild kommt strikt validiertes JSON nach unserem deutschen Extraktions-Schema, ohne Cloud-Pflicht, ohne Vendor-Lock-in.

Zwei Editionen, beide Apache-2.0, beide unter 3 GB:

Edition	Größe (Ollama)	Zielhardware	Stärke
`german-ocr-3:nano`	1.0 GB	CPU / Edge / Mobile	„läuft überall"
`german-ocr-3` ⭐	2.7 GB	4–6 GB VRAM	empfohlene Default-Edition

⭐ Auf unserem Praxistest mit 19 echten anonymisierten deutschen Rechnungen: 100 % gültiges JSON · 95 % Sender korrekt erkannt · 0 % Halluzination.

Fine-tuned adapter für deutsche Geschäftsdokument-Extraktion. Apache 2.0.

Trainings- und Evaluations-Datensätze

neuralabs/german-synth-ocr — 4 500+ deutsche OCR-Samples (synthetisch, Apache-2.0)
Aoschu/German_invoices_dataset_for_donut — 129 echte deutsche Rechnungen (Donut-Format)
Eigenes synthetisches DE-Rechnungs-Set — 100 Rechnungen mit Golden-JSON, deterministisch generiert (eval/fixtures/synth_de_invoices/)
IONOS-Praxistest (anonymisiert) — 19 echte 1&1/IONOS-Rechnungen, intern, nicht im Repo (DSGVO)

Praxistest: 19 deutsche Rechnungen

Edition	Valid JSON	Sender korrekt	Halluzination	Latenz
`german-ocr-3-nano`	16 / 19 (84 %)	15 / 19 (79 %)	0 %	6.6 s
`german-ocr-3` ⭐	19 / 19 (100 %)	18 / 19 (95 %)	0 %	5.0 s

Datenquelle: 19 anonymisierte, real existierende deutsche Rechnungen einer großen DACH-Hosting-Marke. Beide Editionen lesen die echten Daten — Firmenname, USt-IdNr, Kundenadresse, Produkte, Beträge — statt deutsche Defaults zu raten (typischer Fehler kleiner Vision-LLMs ohne strict-prompt).

Größenvergleich

german-ocr-3 (2.7 GB) ist 6× kleiner als ein typischer 7B-OCR-VLM, läuft auf einer 8 GB-Gaming-GPU oder über CPU auf einem normalen Laptop.

Quickstart

Ollama (empfohlen, eine Zeile)

ollama pull Keyvan/german-ocr-3
ollama run Keyvan/german-ocr-3 "Extrahiere die Rechnung im Bild als JSON." ./meine_rechnung.png

Erwartetes Ergebnis (echter Output):

{
  "document_type": "invoice",
  "language": "de",
  "invoice_number": "100137157949",
  "invoice_date": "2024-01-22",
  "due_date": "2024-01-27",
  "sender": {
    "name": "IONOS SE",
    "address": "Elgendorfer Str. 57, 56410 Montabaur",
    "vat_id": "DE815563912",
    "iban": null
  },
  "recipient": {
    "name": "Persepolis Travel e.K.",
    "address": "Dachauer Straße 32, 80335 München",
    "customer_id": "583534778"
  },
  "line_items": [
    {"position": 1, "description": "Mail Business 1 Liz.", "quantity": 1,
     "unit": "Monat", "unit_price_net": 4.20, "amount_net": 4.20, "vat_rate": 19}
  ],
  "amount_net": 4.20,
  "amount_vat": 0.80,
  "amount_total": 5.00,
  "currency": "EUR",
  "notes": ["Entsprechend Ihrem SEPA-Lastschriftmandat ..."]
}

Python (via Ollama HTTP API)

import base64, json, requests
from pathlib import Path

b64 = base64.b64encode(Path("rechnung.png").read_bytes()).decode()
resp = requests.post("http://localhost:11434/api/generate", json={
    "model": "Keyvan/german-ocr-3",
    "prompt": "Extrahiere die Rechnung im Bild als JSON.",
    "images": [b64],
    "stream": False,
    "options": {"temperature": 0, "num_ctx": 32768},
})
data = json.loads(resp.json()["response"])
print(json.dumps(data, indent=2, ensure_ascii=False))

Bundle herunterladen

huggingface-cli download Keyven/german-ocr-3 --local-dir ./german-ocr-3
# Enthält: Modelfile · JSON-Schemas · System-Prompt · GGUF-Quants · Charts

llama.cpp (GGUF direkt)

llama-cli -m ./german-ocr-3/german-ocr-3-Q4_K_M.gguf \
  --system-prompt-file ./german-ocr-3/system_prompt.txt \
  -p "Extrahiere die Rechnung als JSON:" --temp 0

Zielgruppen

Solo-Builder & Indies die deutsche Dokumente lokal extrahieren wollen, ohne Cloud-OCR-Kosten.
DACH-KMU mit Datenschutz-Anspruch, die lokal/on-prem hosten wollen.
Agenturen & Studios die ein Open-Source-Fundament unter ihrer eigenen Pipeline wollen.

Wer es gemanagt und mit größeren Modellen will:

🌐 german-ocr.de — gehostete deutsche OCR-API mit Premium-Modellen, höherer Genauigkeit, ohne eigene Hardware. Daten bleiben in der EU.

Lizenz

Apache License 2.0. Vollständige Attribution (inkl. Architektur-Credit) in NOTICE.

Zitation

@misc{german_ocr_3_2026,
  title  = {German-OCR-3: A compact German document-OCR distribution},
  author = {Hardani, Keyvan},
  year   = {2026},
  url    = {https://github.com/Keyvanhardani/German-OCR-3-Dev}
}