Pleias
Pleias builds the data infrastructure layer for enterprise agentic AI, offering products like Synth, Common Corpus, and Stratum.
Last updated September 2, 2026
Overview
Pleias is an AI company focused on data efficiency, building the data infrastructure layer for enterprise agentic AI. Its dual-product stack includes Stratum for AI-native enterprise data processing and Synth for synthetic data generation. It also curates Common Corpus, an open dataset for LLMs.
History
Pleias is described as a French-German AI Lab. Its mission is to increase data efficiency by a factor of 10^6. It builds the data infrastructure layer for enterprise agentic AI, with a dual-product stack of Stratum and Synth.
Products and positioning
Synth
Synthetic Data for AI agents. Simulates expert-level reasoning and domain-specific processes to generate training data. Runs entirely on-premise.
Common Corpus
Fully Open Data for AI. Curates and structures the world's largest rights-cleared and provenance-based dataset for LLMs.
Stratum
AI-Native Tooling for Agents. Turns messy siloed documents into a single, structured, compliant data asset for agentic AI workflows. Deployable fully on-premise.
Flagship businesses
- Synth
- Common Corpus
- Stratum
Sources
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