head to head · open source
langchain vs DeepSeek-Reasonix
langchain has 148,892 GitHub stars, 25,031 forks, 492 open issues and last shipped yesterday. DeepSeek-Reasonix has 36,045 stars, 2,500 forks, 1,908 open issues and last shipped yesterday. langchain leads on adoption by 313% (148,892 vs 36,045 stars). langchain is written in Python under MIT; DeepSeek-Reasonix is written in Go under MIT. langchain has attracted 17% as many forks as stars, DeepSeek-Reasonix 7%. langchain was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| langchain | DeepSeek-Reasonix | |
|---|---|---|
| GitHub stars | ★ 149K | ★ 36K |
| License | MIT | MIT |
| Written in | Python | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 25K | ⑂ 2.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langchain if
- You weight community size — 149K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick DeepSeek-Reasonix if
- You want the DeepSeek-Reasonix feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and DeepSeek-Reasonix fits your workflow better
About langchain
The agent engineering platform. LangChain is a framework for building agents and LLM powered applications. It helps you chain together interoperable components and third party integrations to simplify AI application development — all while future proofing decisions as the underlying technology evolves. [!TIP] Just getting started? Check out Deep Agents — a higher level package built on LangChain for agents that have built in capabilities for common usage patterns such as planning, subagents, file system usage, and more. Quickstart If you're looking for more advanced customization or agent orchestration, check…
read the full langchain overview →
About DeepSeek-Reasonix
English · 简体中文 · Guide · ACP · Extensions · Spec · Website · Discord Open source · MIT · a single Go binary A coding agent you can leave running. One local engine, four ways in — terminal, desktop app, browser, or your editor over ACP. Plan mode, permissions, a workspace sandbox and per turn checkpoints keep a long autonomous run something you can still read and undo. [!IMPORTANT] Community · 加入社区 — bilingual Discord for setup help ( help / 求助 ), workflow showcases, and feature ideas. → Features Config driven. Providers, the agent, enabled tools, and plugins are all declared in reasonix.toml . No hardcoded…
read the full DeepSeek-Reasonix overview →
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Frequently asked questions
Is langchain or DeepSeek-Reasonix more popular?
langchain has 148,892 GitHub stars and DeepSeek-Reasonix has 36,045. langchain has the larger community by that measure.
Are langchain and DeepSeek-Reasonix free?
Both are open source. langchain is licensed under MIT and DeepSeek-Reasonix under MIT. Neither carries a licence fee.
What is the difference between langchain and DeepSeek-Reasonix?
langchain is written in Python and DeepSeek-Reasonix in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, langchain or DeepSeek-Reasonix?
Choose langchain if you want the larger community (148,892 stars) or its MIT licence terms. Choose DeepSeek-Reasonix if its feature set, stack or MIT licence fits better. Both are self-hostable.