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deer-flow vs parlant

deer-flow and parlant share 19 technologies: FastAPI, aiosqlite, SQLite, starlette, uvicorn, React, jsonschema, Tailwind CSS, class-variance-authority, next-themes, tailwind-merge, sonner, Radix UI, react-resizable-panels, CodeMirror, Lucide, streamdown, rehype-raw, and remark-gfm. Both are written in Python.

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What they share and what sets them apart

bytedance

deer-flow

An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.

Python85kRead on November 4, 2026, at commit a46d922What is deer-flow built with?

Only in deer-flow

In common

emcie-co

parlant

Parlant is an open platform for building customer-facing chat agents with AI. Describe how the agent should behave, and your coding agent implements it for you.

Python18.3kRead on November 6, 2026, at commit a071a81What is parlant built with?

Only in parlant

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
deer-flow1,085,017 lines written1,515 code files
parlant214,893 lines written334 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.
deer-flow12.7% of its commits signed by AIWith Claude Code, GitHub Copilot, Cursor, Codex, and Factory
parlant1.1% of its commits signed by AIWith Claude Code, Codex, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
deer-flowLast push November 4, 20264,588 commits84,984 stars
parlantLast push November 6, 20265,148 commits18,325 stars
TestsThe files that test the code, and the share of code files a test imports.
deer-flow1,922 test files72.5% of its code files have a test that imports them
parlant257 test files57.5% of its code files have a test that imports them

Frequently asked questions

Which is bigger, deer-flow or parlant?
deer-flow, with 1,085,017 lines written; parlant has 214,893.

The proof: bytedance/deer-flow's code at commit a46d922

Which has more GitHub stars, deer-flow or parlant?
deer-flow, with 84,984 stars; parlant has 18,325.

The proof: bytedance/deer-flow on GitHub

Which has more tests, deer-flow or parlant?
deer-flow, with 1,922 test files; parlant has 257.

The proof: bytedance/deer-flow's code at commit a46d922

Which was updated more recently, deer-flow or parlant?
parlant: its last push was on November 6, 2026, and deer-flow's on November 4, 2026.

The proof: emcie-co/parlant's commits on GitHub

Which has more commits signed by AI, deer-flow or parlant?
deer-flow: an AI signed 12.7% of its commits, with Claude Code, GitHub Copilot, Cursor, Codex, and Factory; in parlant, 1.1%.

The proof: the commits each tool signed in bytedance/deer-flow

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