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Pydantic AI
End-to-end AI engineering stack

From our roots in open source, Pydantic is an end-to-end AI engineering stack, focused on developer experience.
Ship type-safe applications with Pydantic Validation, Pydantic AI, Pydantic Logfire, and Pydantic Evals.

Build in Python, TypeScript, Rust, and Go.
Monitor on the cloud or self-host, if you want.

Companies that trust Pydantic

akamai
atlassian
banorte
cisco
duolingo
elastic
janestreet
jpmorganchase
meta
microsoft
nato
nvidia
roche
seatlech
tngtech
walmart
xero
akamai
atlassian
banorte
cisco
duolingo
elastic
janestreet
jpmorganchase
meta
microsoft
nato
nvidia
roche
seatlech
tngtech
walmart
xero
Lema AI logo

Lema AI evaluated several agent frameworks before choosing Pydantic AI for its structured output validation, intuitive API, and seamless integration with Pydantic Logfire (our AI Observability Platform). The switch was a turning point in building their Agentic Risk Engineer - an autonomous system that investigates third-party security with forensic depth.

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Sophos logo

Sophos's SecOps AI team implemented Pydantic Logfire for unified tracing across their AI-powered security solutions. With end-to-end visibility and SQL-based monitoring, engineers now detect issues proactively and run side-by-side LLM experiments with Pydantic Evals.

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BoostedAI logo

Boosted.ai implemented Pydantic Logfire for unified tracing and full-stack observability across 50,000+ AI research workflows. Allowing engineers to fnd and fix issues 12x faster, ensuring exceptional reliability and uptime for institutional finance clients.

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ARIJ Network logo

ARIJ Network, connecting investigative journalists across 22 countries in the Middle East and North Africa, partnered with Vstorm to build a RAG-based AI chatbot using Pydantic AI. The bilingual system (English/Arabic) transformed their training process from handling just 1% of inquiries to delivering reliable, fact-checked knowledge at scale while creating new revenue streams.

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Mixam logo

Mixam, a global self-publishing company, partnered with Vstorm to build an AI agent using Pydantic AI that helps customers navigate complex printing specifications, reducing support burden while improving customer experience for all users who need ordering guidance.

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End-to-end AI Engineering Stack

Build end-to-end type-safe applications with Pydantic Validation, Pydantic AI, Pydantic Logfire and Pydantic Evals.

Respected builders of open source, for Python & beyond

Pydantic is built on the pillars of open source: transparency, collaboration and excellence. Our origins inform every product we craft. Whether it’s a community project or enterprise solution, developer experience is our cornerstone.

OUR MISSION

Driven by curiosity, frustration and coffee

Learn more about the creators of Pydantic, our mission and open source ethos. And see how you can get involved.