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Guardrails AI is a Python framework designed to build reliable AI applications by performing input/output validation and generating structured data from Large Language Models (LLMs). Their core…

Guardrails AI is a Python framework designed to build reliable AI applications by performing input/output validation and generating structured data from Large Language Models (LLMs). Their core…
What they do: Open-source Python framework and managed service for validating and enforcing safety/structure in LLM outputs (Guardrails, Guardrails Hub, Guardrails Pro)
Founded: 2023
Headcount (approx.): 11
Latest funding: $7.5M seed (Feb 2024) led by Zetta Venture Partners
Core use cases: Input/output validation, structured data generation, safety checks (PII, hallucination, jailbreak, toxicity), monitoring
Generative AI safety, reliability, and governance for LLM-based applications.
2023
Data and Analytics
$7.5M
Participation from Factory, Pear VC, Bloomberg Beta, GitHub Fund and angel investors including Ian Goodfellow; reported as most recent round.
“Backed by a mix of institutional VCs (Zetta, Pear VC, Factory, Bloomberg Beta) and strategic/angel investors (GitHub Fund, Ian Goodfellow, M12)”
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