Free
Free
Open-source agent framework documented on pydantic.dev without a required paid tier for the library itself.
- Access
- Open-source agent framework documented on pydantic.dev without a required paid tier for the library itself.
Pydantic AI
● Identity checkedAssistant · Vendor site 2026-10-04
Pydantic AI is the agent framework in the Pydantic stack for building type-safe Python agents with models, tools, realtime voice, image generation, and embeddings. It sits alongside Logfire observability, Pydantic Evals, and AI Gateway cost tracking for end-to-end AI engineering.
- Category
- Assistant
- Free access
- Open-source agent framework documented on pydantic.dev without a required paid tier for the library itself.
- API access
- Python agent framework for model providers and tools; not a hosted chat API product on the homepage.
Is Pydantic AI right for you?
A good fit for
Python teams building production agents who want typed interfaces across models, tools, and observability in the Pydantic ecosystem.
Before you choose
Hosted Pydantic platform services such as Logfire or AI Gateway are separate products from the open Pydantic AI library.
Python agent framework
Pydantic AI documentation presents a Python-first way to compose agents with strong typing, instrumentation, and integration into the broader Pydantic observability and evaluation tools.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Typed agents | Documentation describes type-safe agents spanning chat models, tools, voice, images, and embeddings. | Facts sourced | 2026-10-04 |
| Pydantic stack | Homepage groups Pydantic AI with Logfire, Pydantic Evals, and AI Gateway for full-stack AI engineering. | Facts sourced | 2026-10-04 |
Understand the total cost
Pydantic AI pricing & plans
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Explore toolThe practical questions
Frequently asked questions
What is Pydantic AI used for?
Pydantic AI is the agent framework in the Pydantic stack for building type-safe Python agents with models, tools, realtime voice, image generation, and embeddings. It sits alongside Logfire observability, Pydantic Evals, and AI Gateway cost tracking for end-to-end AI engineering.
Does Pydantic AI have a free plan?
Open-source agent framework documented on pydantic.dev without a required paid tier for the library itself.. This record lists ongoing free access; check the plan limits before starting.
How much does Pydantic AI cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Pydantic AI through an API?
Python agent framework for model providers and tools; not a hosted chat API product on the homepage.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Hosted Pydantic platform services such as Logfire or AI Gateway are separate products from the open Pydantic AI library.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.