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Model components / Dataset Processing Tools

NVIDIA NeMo Data Designer

NVIDIA

Generates 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. Verified 2026-08-13 via the NVIDIA NeMo product page and the DataDesigner README.

Openness

5 medium confidence
5.0
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-gated
ungated(the NeMo Platform adds infrastructure around the published library rather than withholding generation from it)

NVIDIA's own documentation settles this. The NeMo microservices Data Designer page states that "The service is built on the open-source NVIDIA NeMo Data Designer library" and links to github.com/NVIDIA-NeMo/DataDesigner, which is Apache-2.0 and installs with `pip install data-designer`. The repository ships data-designer-config, data-designer-engine and data-designer, so the generation engine itself is published. What the NeMo Platform adds on top is infrastructure rather than function: inference routed through the NMP gateway, distributed job execution with monitoring, NMP fileset seeds, NMP artifact storage and the NMP Secrets service. None of that is functionality withheld from the published source, which is the test that decides this score. So the core is ungated - a managed service sold alongside a complete open core - and the product scores 5, open source.

Adoption

3 high confidence
3.0

416,634 downloads in the trailing 30 days on the declared PyPI artifact `data-designer`, which bands at 100K-1M, level 3. The package is unambiguously the product's own rather than a same-named stranger: the quick start in NVIDIA-NeMo/DataDesigner's README is `pip install data-designer`, and for a Python library PyPI is the primary distribution channel rather than a minority one.

Capability

4 medium confidence
4.0

A 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.

Verified 2026-08-12