a2ui vs hello-agents

a2ui and hello-agents share 8 technologies: anyio, MCP, React, OpenAI, Pydantic, jsonschema, dompurify, and markdown-it. a2ui is written in TypeScript and hello-agents in Python.

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What they share and what sets them apart

a2ui-project

a2ui

Open-source generative UI framework: agents stream layout data, and apps render it with native components in React, Angular, Lit, Flutter, SwiftUI and Jetpack Compose.

TypeScript17kRead on November 7, 2026, at commit 07aa6a7What is a2ui built with?

Only in a2ui

In common

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
a2ui662,704 lines written1,229 code files
hello-agents226,661 lines written1,212 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.
a2ui1.9% of its commits signed by AIWith Gemini CLI
hello-agents2.4% of its commits signed by AIWith Codex, Cursor, and Claude Code
ActivityFrom GitHub and its history, on the day SeeRepo read it.
a2uiLast push November 7, 20261,810 commits17,001 stars
hello-agentsLast push October 13, 2026660 commits86,039 stars
TestsThe files that test the code, and the share of code files a test imports.
a2ui1,165 test files44.9% of its code files have a test that imports them
hello-agents97 test files6.9% of its code files have a test that imports them

Frequently asked questions

Which is bigger, a2ui or hello-agents?
a2ui, with 662,704 lines written; hello-agents has 226,661.

The proof: a2ui-project/a2ui's code at commit 07aa6a7

Which has more GitHub stars, a2ui or hello-agents?
hello-agents, with 86,039 stars; a2ui has 17,001.

The proof: datawhalechina/hello-agents on GitHub

Which has more tests, a2ui or hello-agents?
a2ui, with 1,165 test files; hello-agents has 97.

The proof: a2ui-project/a2ui's code at commit 07aa6a7

Which was updated more recently, a2ui or hello-agents?
a2ui: its last push was on November 7, 2026, and hello-agents's on October 13, 2026.

The proof: a2ui-project/a2ui's commits on GitHub

Which has more commits signed by AI, a2ui or hello-agents?
hello-agents: an AI signed 2.4% of its commits, with Codex, Cursor, and Claude Code; in a2ui, 1.9%.

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