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opik vs langflow

opik and langflow share 23 technologies: FastAPI, Redis, OpenAI, AIOHTTP, Vite, React, Rich, LangChain, pillow, Pydantic, jsonschema, class-variance-authority, Tailwind CSS, tailwind-merge, Radix UI, react-hotkeys-hook, react-day-picker, cmdk, Lucide, react-markdown, remark-gfm, rehype-raw, and rehype-sanitize. Both are written in Python.

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What they share and what sets them apart

comet-ml

opik

Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.

Python23.2kRead on November 4, 2026, at commit df61dd2What is opik built with?

Only in opik

In common

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

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
opik1,680,031 lines written7,878 code files
langflow1,446,517 lines written3,937 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.
opik19.7% of its commits signed by AIWith Claude Code, GitHub Copilot, and Cursor
langflow1.5% of its commits signed by AIWith Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp
ActivityFrom GitHub and its history, on the day SeeRepo read it.
opikLast push November 4, 20267,898 commits23,166 stars
langflowLast push November 4, 202617,600 commits156,316 stars
TestsThe files that test the code, and the share of code files a test imports.
opik2,703 test files20.9% of its code files have a test that imports them
langflow3,083 test files35.1% of its code files have a test that imports them

Frequently asked questions

Which is bigger, opik or langflow?
opik, with 1,680,031 lines written; langflow has 1,446,517.

The proof: comet-ml/opik's code at commit df61dd2

Which has more GitHub stars, opik or langflow?
langflow, with 156,316 stars; opik has 23,166.

The proof: langflow-ai/langflow on GitHub

Which has more tests, opik or langflow?
langflow, with 3,083 test files; opik has 2,703.

The proof: langflow-ai/langflow's code at commit 60999cc

Which was updated more recently, opik or langflow?
Both got their last push on November 4, 2026.

The proof: comet-ml/opik's commits on GitHub

Which has more commits signed by AI, opik or langflow?
opik: an AI signed 19.7% of its commits, with Claude Code, GitHub Copilot, and Cursor; in langflow, 1.5%.

The proof: the commits each tool signed in comet-ml/opik

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