Pydantic Logfire

Developer tool

by Pydantic

Pydantic Logfire collects application traces and evaluates AI outputs to help developers investigate failures and verify changes.

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TypeDeveloper tool
RoleStandalone tool
Bought forTest and evaluate an AI agent, Watch an AI agent for suspicious or runaway behaviour
AvailabilitySold
DeploymentSaaS, Self-hosted
Intended forDeveloper, Enterprise
SecurityNot recorded
StatusActive
Sold withinSold on its own
PricingFreemium, Subscription, Usage-based, Enterprise quote — official pricing ↗
Pricing, Deployment, Sold within — pydantic.dev · 20 Oct 2026

What it does

pydantic.dev

Sources

Pricing

Pricing page · 20 Oct 2026

Pricing page: "Additional records are $2 per million"

Description

Official documentation · 20 Oct 2026

Product page: "Full-stack observability and evaluation for AI apps"

What it does

Official documentation · 20 Oct 2026

Product page: "Full-stack observability and evaluation for AI apps"

Sold within

Pricing page · 20 Oct 2026

Sold on its own with published plans.

Name

Official documentation · 20 Oct 2026

Name as published on the product page.

URL

Official documentation · 20 Oct 2026

Product page, read 2026-10-20.

Deployment

Official documentation · 20 Oct 2026

Product page: "Fully managed cloud, single-tenant infrastructure, or self-hosted on your own cluster."

Interfaces

Official documentation · 20 Oct 2026

Product page: "Fully managed cloud, single-tenant infrastructure, or self-hosted on your own cluster."

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