Pydantic AI
Open-source Python framework for building typed AI agents that call tools and subagents, validate tool arguments and structured outputs and retry when a check fails, keep a plan, workspace and memory through the Pydantic AI Harness package, and resume long runs on a durable runtime such as Temporal or DBOS, with models from OpenAI, Anthropic, Google, Bedrock, Mistral, Groq or Ollama.
Find alternatives to Pydantic AI
What it does
- Agent orchestration
Sources
- Pricing
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Official documentation · 21 Oct 2026
Open-source package ("uv add pydantic-ai", MIT licence per the PyPI classifier); the page links "Get Pydantic AI enterprise support" without a published price.
- Description
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Official documentation · 21 Oct 2026
Vendor product list: "production-grade agent framework for Python"; the product page (https://pydantic.dev/pydantic-ai) shows tool calling, validated structured outputs and retries, durable execution and a companion Harness package.
- What it does
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Official documentation · 21 Oct 2026
"production-grade agent framework for Python" (agent building and running over tools and subagents).
- Sold within
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Official documentation · 21 Oct 2026
Obtained as open-source software by installing the package: "uv add pydantic-ai"; it needs no parent product or account.
- Name
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Official documentation · 21 Oct 2026
Page title: "Pydantic AI: Type-Safe Python Framework for AI Agents & LLM Applications".
- URL
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Official documentation · 21 Oct 2026
Pydantic AI's own page, titled "Pydantic AI: Type-Safe Python Framework for AI Agents & LLM Applications", linked from the site header as "Pydantic AI" beside "Logfire" and "AI Gateway"; the vendor's llms.txt (https://pydantic.dev/llms.txt) lists it as its own product.
- Deployment
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Official documentation · 21 Oct 2026
A Python package installed into the customer's own environment: "uv add pydantic-ai"; runs on the customer's own infrastructure and models.
- Interfaces
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Official documentation · 21 Oct 2026
Installed into the customer's own Python code as a package: "uv add pydantic-ai".
- Modalities
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Official documentation · 21 Oct 2026
Typed prompts go in and the agent returns text and validated structured outputs (the page shows an agent returning a typed result object); read from the page's code examples after "uv add pydantic-ai".
- Intended for
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Official documentation · 21 Oct 2026
Python developers: the page is code-first, with the install line "uv add pydantic-ai" and agent and tool examples.
Also from Pydantic
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Pydantic Logfire Developer tool
Pydantic Logfire collects application traces and evaluates AI outputs to help developers investigate failures and verify changes.
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Pydantic AI Gateway API service
LLM proxy that gives an application one key for OpenAI, Anthropic, Google, Groq and AWS Bedrock models, passes each request through in the provider's native format, caps spend per project, user or API key by day, week, month or total, and sends OpenTelemetry traces of every call to Logfire or any other backend, with a cloud dashboard or a self-hosted deployment.
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