Open Source Alternatives to Vellum
23 open source Synthetic Data Generation options similar to Vellum, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.
DatabricksNot ratedA unified data analytics and AI platform built on the lakehouse architecture.
Open source · Self-hostable
Feast AINot ratedAn open-source feature store for managing and serving data for AI/ML models in production.
Open source · Self-hostable
Visual LayerNot ratedAI-powered database for visual data, enabling intelligent search and analysis of images and videos.
Open source · Self-hostable
DocsGPTNot ratedOpen-source AI platform for securely deploying intelligent agents, private enterprise search, and complex document workflows on an organization's own data.
Open source · Self-hostable
H2O.aiNot ratedAn open-source AI and machine learning platform for enterprises.
Open source · Self-hostable
HyperbolicNot ratedOpen-access AI cloud platform providing affordable, on-demand GPUs for training and serving AI models.
Open source
Recognai, S.L.U.Not ratedCompany
Open source
Faiss by MetaNot ratedOpen-source library by Meta AI for efficient similarity search and clustering of dense vectors.
Open source · Self-hostable
CAMEL-AI.orgNot ratedOpen-source community discovering scaling laws of intelligent agents for data generation, world simulation, and task automation.
Open source · Self-hostable
- AGAgent4RecNot rated
Simulates 1,000 LLM-powered agents for diverse movie recommendation preferences.
Open source
- GGggmlNot rated
A C/C++ tensor library for efficient machine learning inference on consumer hardware.
Open source · Self-hostable
- HUHumanSignalNot rated
Adala is an Autonomous DAta (Labeling) Agent framework for data processing and labeling tasks.
Open source · Self-hostable
QdrantNot ratedHigh-performance, open-source vector search engine built in Rust for production-grade AI and machine learning workloads.
Open source · Self-hostable
ClearMLNot ratedOpen-source, end-to-end MLOps platform for enterprise AI development and deployment.
Open source · Self-hostable
AirweaveNot ratedOpen-source tool to transform application data into accessible knowledge for AI agents.
Open source · Self-hostable
Vanna AINot ratedAn open-source AI-powered SQL agent for natural language database interaction and data insights.
Open source · Self-hostable
KestraNot ratedAn open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.
Open source · Self-hostable
DefconNot ratedThe Defcon badges feature a unique open-source chip that doubles as a security key.
Open source
PromptQLNot ratedAn AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.
Open source · Self-hostable
Data Commons AINot ratedGoogle's open-source platform that organizes and makes public data accessible and useful for societal challenges through a unified knowledge graph.
Open source · Self-hostable
InconvoNot ratedInconvo is an open-source platform for building data agents on production data with safe queries, permissions, and structured outputs.
Open source · Self-hostable
pyannote SASNot ratedCompany
Open source
Apache AirflowNot ratedOpen-source platform for programmatically authoring, scheduling, and monitoring data pipelines.
Open source · Self-hostable

