Pydantic
20 stories
PydanticToolsThe best Python AI agent frameworks in 2026 A support agent works in the demo. Then the real requirements arrive. A refund over a limit needs a person to approve it, and that person answers two days later.
PydanticToolsPydantic Validation: Next Steps Pydantic Validation has come a long way since the V2 release in June 2023. Fourteen minor releases later (the most recent being V2.14 ), V2 is faster, more correct, and supports far more of the…
PydanticToolsRendreal takes print orders inside the assistant you already use Ask a general-purpose assistant for a leaflet and you get something that looks good on screen. It is not a print file, it has no price, and there is nowhere to send it.
PydanticToolsCode mode: make your agents 2x faster and 2x cheaper on long tasks Everyone I talk to has an opinion about code mode right now. Mine was lit by Prime Intellect's Prime Agent , a coding harness built around a persistent REPL, and by Alex Zhang's speculative…
PydanticToolsI received the AAIF Outstanding Technical Contribution Award Last Friday, on day two of AGNTCon + MCPCon North America , the Agentic AI Foundation gave me the Outstanding Technical Contribution Award for my work on the MCP Python SDK .
PydanticToolsWhy do you need traces if you already have logs? Developers ask me this a lot: "Why do I need traces? I have logs." I asked the same question for years. The short answer: a log line records that something happened at one point in time.
PydanticToolsRun Pydantic AI coding agents in E2B sandboxes A coding agent that can run python -m unittest and edit files is useful. A coding agent that runs them on your laptop, as you, with your SSH keys in ~/.ssh and your production .env two directories…
PydanticToolsPydantic runs on RunsOn Pydantic runs on RunsOn . We moved to RunsOn on September 1. It launches ephemeral EC2 runners for Logfire's GitHub Actions workflows in our AWS account.
PydanticToolsThe code is the graph # TL;DR Graph libraries are a mistake. Your code IS the graph. Code gives you type safety from type hints, parallel execution from async, and durable execution from Temporal outside the sandbox and…
PydanticToolsAnnouncement: Pydantic v2.14 Release Pydantic v2.14 was released on October 8th. You can install it now from PyPI : pip install --upgrade pydantic This release features the work of 13 external contributors and provides various new…
PydanticToolsWould you deploy an agent you don't control? I have spent my career believing that software should be explicit. Explicit dependencies. Minimal privileges. Observable behavior. The usual sane software practices.
PydanticToolsBuilding production agents: the observability layer This piece is a guest post from Vstorm. A while back, one of our agents handed a customer a wrong answer with total confidence. No exception. No failed test. The logs were clean.
PydanticToolsDebugging production from your editor with the Logfire MCP server The bug report says checkout is failing. Cursor is open on the file you suspect, and Pydantic Logfire is open in another window on the trace that proves you suspect the wrong file.
PydanticToolsRunning Pydantic AI agents on Jev, and seeing what they decided A lot of the agents I see in production don't write anything. They read a support ticket and decide who owns it. They look at a shell command and decide whether it's safe to run.
PydanticToolsJev is now available in Pydantic AI Gateway You can now call Jev , TypeSafe's classification model, through Pydantic AI Gateway . Your application keeps one gateway key, and Jev requests show up next to your language models in the same spend…
PydanticToolsHigh-volume AI scoring with Jev and Pydantic Evals An evaluator often needs to return a category, a yes/no judgment, or a position on a rubric. Writing an explanation can be useful, but you don't always need one for every production response.
PydanticToolsLogfire dashboards: more beautiful, more usable We've given Pydantic Logfire dashboards a lot of polish over the past few weeks. I want to highlight some of the improvements we've made in their look and feel, share some of my design thinking, and…
PydanticToolsGenerate images with Pydantic AI The news upfront: you can now use dedicated image-generation models through Pydantic AI! Previously, our image-generation support went through conversational models with image-generation abilities .
PydanticToolsDurable execution in Pydantic AI agents with AWS Lambda Durability Picture this: an AI support agent spends fifteen minutes working on a ticket. It reads the order, calls the billing API, asks the model what to do next, calls another tool, and somewhere in the…
PydanticToolsLinguistic drift at the frontier I've noticed some strange behavior coming out of the top frontier models lately. Models are getting better and better at coding, design, problem solving, and more.
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