NVIDIA NeMo Data Designer
NVIDIAGenerates synthetic datasets from scratch or from seed data using statistical samplers, dependency-aware generation across correlated fields, Python, SQL and custom validators, and judge-model scoring. The data-designer library runs locally, and the NeMo Platform runs the same configurations as a managed service.
The productized form of Gretel's technology after NVIDIA's 2025 acquisition; the Gretel brand is retired (gretel.ai redirects to NVIDIA) and the gretel-synthetics OSS repo was archived February 2026. Substituted for Gretel, which no longer exists as a standalone product.
Openness
5 medium confidence- license
- Apache-2.0(OSI, NVIDIA-NeMo/DataDesigner LICENSE)
- source
- public(pip install data-designer, the published framework runs locally against any configured inference provider)
- core features withheld
- no — the NeMo Platform adds infrastructure around the published library rather than withholding generation from it
NVIDIA's own documentation says its Data Designer service is built on the separately published NeMo Data Designer library, released under Apache-2.0. The library can be installed and run locally with pip, and the NeMo Platform sells infrastructure around it, such as managed inference routing and job execution, rather than holding back any generation feature from the published package.
- https://docs.nvidia.com/nemo/microservices/latest/data-designer/index.html recorded 2026-09-29
NVIDIA NeMo microservices docs (served from archive.docs.nvidia.com): "The service is built on the open-source" NVIDIA NeMo Data Designer library; comparison table lists "Local Python process", "Direct API calls to any OpenAI-compatible endpoint" and "Distributed job execution with monitoring".
- https://github.com/NVIDIA-NeMo/DataDesigner recorded 2026-08-12
Apache-2.0, 2.1k stars, packages/ ships data-designer-config, data-designer-engine and data-designer; README documents pip install data-designer and local generation against NVIDIA Build, OpenAI or OpenRouter providers
- https://raw.githubusercontent.com/NVIDIA-NeMo/DataDesigner/main/LICENSE recorded 2026-09-29
Apache license text: "Apache License" and "Version 2.0, January 2004".
- https://raw.githubusercontent.com/NVIDIA-NeMo/DataDesigner/main/README.md recorded 2026-09-29
README badge "License-Apache_2.0", install step "pip install data-designer", and "Validate and score outputs** with Python, SQL, custom validators, and LLM judges"; searched the body for license key, enterprise, and hosted-only requirement: none (model providers are user-configured API keys).
Adoption
3 high confidenceThe data-designer package on PyPI is this tool's primary distribution channel, so its downloads are the usage signal. The package is confirmed as belonging to this product, rather than to an unrelated project of the same name, because the repository's own quick start instructs users to `pip install data-designer`.
- https://pypistats.org/api/packages/data-designer/recent recorded 2026-08-13
last_month 416,634 (last_week 145,088; last_day 24,257)
- https://raw.githubusercontent.com/NVIDIA-NeMo/DataDesigner/main/README.md recorded 2026-08-13
quick start reads `pip install data-designer`, tying the PyPI package to this product
Capability
4 medium confidenceA capable synthetic-data engine, scored on its current NVIDIA-productized form. The transformation and augmentation workflows and the differential-privacy heritage from Gretel no longer appear on the NVIDIA page, so they do not count toward the score.
- https://raw.githubusercontent.com/NVIDIA-NeMo/DataDesigner/main/README.md recorded 2026-09-29
README says Data Designer generates "text, structured data, and images" "using samplers, LLMs, image models, or existing seed datasets".
- https://www.nvidia.com/en-us/ai-data-science/products/nemo/ recorded 2026-09-29
NVIDIA NeMo product page lists NeMo Data Designer: "synthetic datasets from scratch for building and evaluating specialized agents."
Verified 2026-09-24