langflow vs pydantic-ai
langflow and pydantic-ai share 6 technologies: FastAPI, Vite, React, Rich, Pydantic, and dompurify. Both are written in Python.
LinkedInWhat they share and what sets them apart
langflow-ai
langflow
Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
Python156.3kRead on November 4, 2026, at commit 60999ccWhat is langflow built with?Only in langflow
pyarrow
oracledb
- Redis
OpenAIuvicorn
- AIOHTTP
react-router-dom
- SQLAlchemy
- cryptography
- pyjwt
- bcrypt
google-auth-oauthlib
firecrawl-py
- LangChain
- langchain-classic
- MCP
- exa-py
pillow
- defusedxml
pypdf
- markitdown
- jsonschema
msgspec
- validators
psutil
loguru
- boto3
- Tailwind CSS
class-variance-authority
tailwind-merge
- xyflow
- Radix UI
ag-grid-community
- Framer
- react-hotkeys-hook
- use-stick-to-bottom
react-syntax-highlighter
- ace-builds
- Headless UI
- cmdk
elkjs
react-day-picker
react-error-boundary
react-sortablejs
- reactflow
- Lucide
react-icons
- @radix-ui/react-icons
- react-markdown
remark-gfm
rehype-sanitize
rehype-raw
In common
pydantic
pydantic-ai
How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.
Python21kRead on November 5, 2026, at commit c8bdab3What is pydantic-ai built with?Only in pydantic-ai
- anyio
- pydantic-ai-slim
- OpenTelemetry
highlight.js
marked
Side by side
langflowpydantic-ai
SizeLines written by people and agents, without generated ones; code files, without tests.
langflow1,446,517 lines written3,937 code files
pydantic-ai1,214,511 lines written1,068 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
langflow1.5% of its commits signed by AIWith Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp
pydantic-ai7.7% of its commits signed by AIWith Claude Code, Devin, GitHub Copilot, Cursor, and Codex
ActivityFrom GitHub and its history, on the day SeeRepo read it.
langflowLast push November 4, 202617,600 commits156,316 stars
pydantic-aiLast push November 5, 20265,276 commits21,037 stars
TestsThe files that test the code, and the share of code files a test imports.
langflow3,083 test files35.1% of its code files have a test that imports them
pydantic-ai1,214 test files19% of its code files have a test that imports them
Frequently asked questions
Which is bigger, langflow or pydantic-ai?
langflow, with 1,446,517 lines written; pydantic-ai has 1,214,511.
Which has more GitHub stars, langflow or pydantic-ai?
langflow, with 156,316 stars; pydantic-ai has 21,037.
The proof: langflow-ai/langflow on GitHub
Which has more tests, langflow or pydantic-ai?
langflow, with 3,083 test files; pydantic-ai has 1,214.
Which was updated more recently, langflow or pydantic-ai?
pydantic-ai: its last push was on November 5, 2026, and langflow's on November 4, 2026.
The proof: pydantic/pydantic-ai's commits on GitHub
Which has more commits signed by AI, langflow or pydantic-ai?
pydantic-ai: an AI signed 7.7% of its commits, with Claude Code, Devin, GitHub Copilot, Cursor, and Codex; in langflow, 1.5%.
The proof: the commits each tool signed in pydantic/pydantic-ai
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