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💸 Use AI Agents Like Codex, Muse,... Completely For FREE. Seriously. No Subscription

I found a way to recreate the core experience behind AI coding agents, no credit card, and no trial limits. You’ll see the setup that lets you build with AI agents for free.

Author

Robin Do
September 22, 2026

TL;DR

You can now use a free AI coding assistant with real agent features without paying for a subscription or entering a credit card. The tradeoff is simple: ads cover the cost of your model usage.

The setup gives you access to models such as GPT 5.6 Sol, DeepSeek V4.1 Flash, and GLM 5.3 Flash, with daily usage that can reach roughly 20 hours on cheaper models. You can build projects, edit files, run commands, preview results, and work across multiple tasks.

The results are useful for prototypes, simple apps, small fixes, and learning how AI coding agents work. Output quality still depends heavily on the model you choose.

Key points

  • Up to around 20 hours of free usage per day on cheaper models.

  • Avoid expecting premium-agent quality from every task.

  • Use cheaper models for simple work and stronger models for harder tasks.

Introduction

OpenCode: $120/year + Codex: $240/year + Cursor: $720/year + Claude Code: $1,200/year. Yeah... AI coding can get expensive FAST.

But then I found a free AI coding assistant that costs $0 and still lets you run AI agents to build websites, games, and real coding projects.

No subscription. No credit card. No trial period. And it gives you daily access to models like GPT-5.6, DeepSeek V4.1 Flash, and GLM 5.3 Flash.

Sounds too good? So I tested Freebuff myself to see if there was some hidden catch, limitation, or risk. I'm not sponsored by them. I just think this is one of the more interesting free options if you want to use AI coding agents without paying every month.

I tested it. I found some interesting things. Keep reading. This one is 100% worth your time.

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