
DeepSeek-Reasonix
DeepSeek-native AI coding agent for your terminal. Engineered around prefix-cache stability — leave it running.
The Lens
DeepSeek-Reasonix is a coding agent that lives in your terminal and runs on DeepSeek's models. It edits files, runs shell commands, plans multi-step changes, and plugs into MCP servers and custom skills, the same shape as Aider or Claude Code but built specifically around DeepSeek. The agent itself is free and MIT licensed; you bring your own DeepSeek API key.
The whole point is cost control through prefix caching. The project is engineered to keep your conversation prefix stable so DeepSeek's cache keeps hitting, and the numbers are real: one documented session ran about twelve dollars instead of sixty-one without caching. Install is a single npm install with Node 22 or newer. A Tauri desktop client exists but it is still a prerelease, so the command line is where the stable experience lives.
Solo developers already paying for DeepSeek API access get a capable agent for nothing extra. Small teams that want AI coding without per-seat Copilot or Cursor bills can run this and pay only for tokens. Larger teams will weigh the lack of polish and support against the savings, and many will still want an IDE-integrated tool instead.
The catch is that you are tied to one model family. DeepSeek is cheap and capable, but it is not the strongest coding model out there, and the project says so itself. If you need the best results regardless of cost, this is not it.
Free vs Self-Hosted vs Paid
fully freeFree tier: The agent itself, MIT licensed and free. Install with a single npm command and run it.
Self-hosted: Runs entirely on your machine; the only thing leaving is API calls to DeepSeek. No server to operate.
Paid: You pay DeepSeek for token usage. The prefix-caching design is built to slash that cost: one documented session ran about twelve dollars instead of sixty-one. Compared to per-seat Copilot or Cursor subscriptions, a team pays only for what it actually uses.
The agent is free and open source under MIT. You pay DeepSeek for API usage, and the built-in prefix caching keeps that bill low.
Get tools like this every Wednesday
One featured tool, three on the radar. No fluff.
Similar Tools

an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM

The open source coding agent.

Autonomous coding agent right in your IDE, capable of creating/editing files, executing commands, using the browser, and more with your permission every step of the way.

aider is AI pair programming in your terminal
License: MIT License
Use freely, including commercial. Just keep the license.
Commercial use: ✓ Yes
About
- Owner
- YHH (User)
- Stars
- 7,136
- Forks
- 394
Explore Further
More tools in the directory
everything-claude-code
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
191.2k ★ollama
Get up and running with Kimi-K2.5, GLM-5, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.
172.1k ★hermes-agent
The agent that grows with you
166.1k ★