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Reddit
reddit.com › r/stablediffusion › best ai coding agent opensource/free for coding?
r/StableDiffusion on Reddit: Best AI coding Agent Opensource/Free for coding?
October 6, 2025 -

As there are amazing coding agents like Claude Code, Gemini Codex are available, what is the best available that is free, and of course, will get the work done like:
Checking codes in GitHub repos.
projects.

Asking this question here as this is the biggest AI community in my knowledge if someone knows a better place, then please let me know.

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opencode
opencode.ai
OpenCode | The open source AI coding agent
Free models included or connect any model from any provider, including Claude, GPT, Gemini and more. ... OpenCode is an open source agent that helps you write code in your terminal, IDE, or desktop.
Discussions

What are the best free agentic AI coding assistants right now?
I'm not affiliated with Roo Code — just an avid user. It’s a lightweight VS Code extension that lets you bring your own API keys (OpenRouter, Anthropic, OpenAI, Google, etc.). (Gemini has $300 in free credits, look it up for help) No subscriptions, no lock-ins. It's fully local, privacy-respecting, and extremely hackable. That’s the TLDR. If you’re looking for more than just completions — like a real agent workflow that’s transparent and modular — here’s how I use Roo Code to build a full AI team inside VS Code: https://github.com/Mnehmos/Building-a-Structured-Transparent-and-Well-Documented-AI-Team Here’s the high-level task map format I use: [Project Title] Phase 0: Setup Goal: [Phase Objective] Task 0.1: [Setup Environment] Scope: [Setup boundaries] Expected Output: [Working baseline] Phase 1: Build Goal: [Initial Functional Version] Task 1.1: [Implement Core Feature] Scope: ... Expected Output: ... Each task is handed off with a subtask prompt like this: [Task Title] Context [How it fits into the larger project] Scope [What is and isn’t part of the task] Expected Output [Clear success criteria] Additional Resources [Docs, tips, examples] Happy to answer questions or share setups. More on reddit.com
🌐 r/ChatGPTCoding
49
34
May 18, 2025
What is the best completely free ai coding editing agent
Firebase Studio in "code" mode. The (free) built in model is quite capable More on reddit.com
🌐 r/vibecoding
73
32
November 18, 2025
Which Coding Agents are you using for FREE to build
🌐 r/SaaS
Is opencode the best free coding agent currently?
i noticed that opencode does prompt reprocessing, wasting compute which is not tenable when running local models. Qwen code works fine, no prompt reprocessing, does everything opencode does. More on reddit.com
🌐 r/LocalLLaMA
49
24
February 23, 2026
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cline.bot
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dev.to › chirag127 › the-ultimate-guide-100-best-free-ai-coding-agents-platforms-november-2025-230a
The Ultimate Guide: 100+ Best Free AI Coding Agents & Platforms (November 2025) - DEV Community
November 23, 2025 - Best For: VS Code extension, local development. China's tech giants are releasing massive, free AI models to compete with OpenAI. These are often completely free or have huge limits. These companies have deep pockets and are subsidizing your AI usage to win market share. Take advantage of it. Google AI Studio: Free access to Gemini 1.5 Pro/Flash APIs. GitHub Copilot: Free for Students & Open Source maintainers. Amazon Q Developer: 50 agentic requests/month + 1000 lines of code transformation.
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Zencoder
zencoder.ai › home › 8 best free ai agents for coding to try in 2026
8 Best Free AI Agents for Coding To Try in 2026
3 weeks ago - Visual Studio IntelliCode is completely free with no subscription fees or license costs. Qodo (formerly Codium) is an AI-powered code integrity platform that integrates intelligent agents across IDEs, terminals, and Git platforms to automate ...
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codeassist.google
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Gemini Code Assist gives you access to Gemini CLI, an open source AI agent that brings the power of Gemini directly into your terminal. Gemini CLI provides powerful AI capabilities, from code understanding and file manipulation to command execution ...
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Medium
martinterhaak.medium.com › best-ai-coding-agents-summer-2025-c4d20cd0c846
Best AI Coding Agents Summer 2025 | by Martin ter Haak | Medium
September 23, 2025 - Out of all AI tools, I found Windsurf to be the best at helping you write code quickly. Its suggestions save you lots of clicking and typing (instead, you repeatedly press tab-tab-tab). But it’s 2025 and most developers are not approving suggestions solely on a line-by-line level anymore. We have agents now!
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Reddit
reddit.com › r/chatgptcoding › what are the best free agentic ai coding assistants right now?
r/ChatGPTCoding on Reddit: What are the best free agentic AI coding assistants right now?
May 18, 2025 -

I'd want it to be integrated into an IDE so no copy paste is needed.

e.g. Vscode's Copilot agent mode - does it work with a free model like Gemini 2.5? Does it work with Qwen3/Deepseek?

the other new choice seems to be Firebase Studio, is it the same results as AI studio?

what about cline/roo etc in Vscode, again using with a free llm option?

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Graphite
graphite.com › guides › top-free-ai-agents-software-development
Top free AI agents for software development
Free tier available. Zencoder and Qodo: Qodo, formerly Codium, provides intelligent multi-agent code review, testing, generation across IDE, terminal, and CI; Zencoder analyzes whole codebases with advanced repo "grokking."
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Cline
cline.bot
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Open-source AI coding agent with Plan/Act modes, MCP integration, and terminal-first workflows. Trusted by 5M+ developers worldwide.
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free.theresanaiforthat.com › agents › s › coding
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kdnuggets.com › top-5-agentic-coding-cli-tools
Top 5 Agentic Coding CLI Tools - KDnuggets
I use it to test new models, evaluate the MCPs, and build custom agents. If you are a hardcore coder or a professional developer, you will appreciate the extensive customization options available to modify and improve OpenCode at a micro level. You will have control over security, design, functions, and overall project management in a controlled environment. To get started, open your terminal and type the following command: ... You can even explore free models provided by OpenCode and connect to various models through openrouter.ai access.
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Qodo
qodo.ai › blog › general › 15 best ai coding assistant tools in 2026
Top 15 AI Coding Assistant Tools to Try in 2026
1 month ago - Aider is open source and free to use. Costs depend on the language model provider you configure (for example, API usage from OpenAI, Anthropic, or other supported models). Devin is an autonomous AI software agent built to complete engineering ...
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Syntackle
syntackle.com › blog › opensource-ai-coding-agents-to-try
Open Source AI Coding Agents to Try for Free
5 days ago - OpenCode, pi, T3 Code, and Kilo are four open source AI coding agents you can try for free. I compare them by workflow fit, provider flexibility, Claude subscription access, and what "free" actually costs.
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GitHub
github.com › features › copilot
GitHub Copilot · Your AI pair programmer
20 hours ago - ... Control which MCP servers developers can access from their IDEs, and use allow lists to prevent unauthorized access. ... A fast way to get started with GitHub Copilot. ... No credit card required.
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Zencoder
zencoder.ai
Zencoder | The AI Coding Agent
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Pieces
pieces.app › home
10 Best AI code generators in 2025 [Free & Paid]
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It will also automatically check your code for bugs, detect mistakes, and even recommend ways to correct the code. As you're typing, it can comprehend the context of your code, and provide relevant suggestions accordingly. Replit Agent has a free tier along with a core, teams, and enterprise tier. Pieces is your AI long-term memory agent that captures live context from browsers to IDEs and tools, manages snippets, and supports multiple LLMs. This app has dramatically improved my workflow!
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Topbusinesssoftware
topbusinesssoftware.com › top business software › categories › free version
The Top 25 Free AI Coding Agents in 2026
Effortlessly train your AI Copilot with personal files in the Playground, enabling you to develop and share a Copilot in just five minutes, or create unique AI solutions through the API with ease. This free extension for VS Code significantly enhances your programming experience with features ...