Kilo AI Coding Assistant

🚀 Quick Verdict

Kilo AI stands out because your coding sessions move with you from desktop to mobile without losing state. We were impressed by the Architect Mode, which handled complex logic that usually trips up standard chat assistants. It’s a top choice if you want to avoid the high monthly subscriptions of competing tools.

Overall Score	9.2/10
Best For	Founders building full-stack apps
Tested Plan	Pay-as-you-go (Kilo Gateway)
Testing Period	10 days
Biggest Strength	Zero model lock-in
Biggest Weakness	Mobile UI still feels early
Best Alternative	Cursor

🤔 What Is Kilo AI?

Kilo AI is an open-source agentic engineering platform designed to handle end-to-end software development. Unlike simple autocomplete tools, it uses specialized agents to write code, debug errors, and even perform automated code reviews on your pull requests.

Founded by GitLab co-founder Sid Sijbrandij, the tool aims to reduce the friction of switching between different AI providers. It solves the problem of “context loss” by ensuring that whether you’re in VS Code or using their CLI, the AI knows exactly what you’ve already built.

⚙️ How We Tested Kilo AI

We tested the free tier and Kilo Gateway with $20 in credits over 10 days. Our testing focused on three tasks: building a 3D data visualization component, automating a multi-file refactor of a landing page, and performing an AI code review on a GitHub pull request to catch security vulnerabilities.

✨ Key Features (What Actually Stood Out)

The platform isn’t just another wrapper; it’s a deep integration for coding workflows that prioritizes developer speed. Link these agents to your terminal and they’ll fix their own execution errors without you typing a word.

• Kilo Gateway — Access over 500 different models from OpenAI, Anthropic, and Google from a single interface. We successfully swapped from Claude to GPT-4o mid-task when we hit a specific logic hurdle.
• Architect Mode — This mode maps out file structures before writing code. During our test, it correctly identified three backend files that needed updates for a frontend change.
• Session Sync — We started a prompt on the desktop and continued refining the code on a mobile device during a commute. The history and variables remained perfectly intact.
• AI Code Reviewer — It automatically scans pull requests for bugs and style violations. It caught a missing error handler in our Express.js route that we had overlooked.
• App Builder — A visual tool that lets you describe an app and watch it build. It’s helpful for rapid prototyping without setting up a local environment first.

💰 Kilo AI Pricing — Is It Worth It?

Kilo uses a refreshing pricing model where you only pay for the tokens you use at the provider’s list price. This is excellent for productivity because you aren’t stuck with a $20/month bill if you only code on weekends.

Plan	Price	Best For	Watch Out For
Code Reviewer	Free	Small Teams	Limited to specific models
Pay-As-You-Go	Variable	Solo Founders	Requires credit balance
Kilo Pass	From $19/mo	Power Users	50% bonus credits are the main draw

Our pick: Pay-As-You-Go — It’s the most flexible way to access high-end models without a recurring commitment.

🧪 What We Found During Testing

Using Kilo felt different than using a standard chatbot because the agents have actual agency. When we asked it to fix a CSS bug, it didn’t just give us a snippet; it opened the terminal, ran our build script, saw that it failed, and then corrected the mistake on its own. We did find that using the CLI requires some comfort with terminal commands, which might intimidate non-technical founders at first. However, the VS Code extension simplifies most of this behind a clean UI.

A founder in our community who runs a game studio told us the architect mode nailed a detailed feature plan and suggested game mechanics he hadn’t even thought of yet.

⚠️ Limitations We Found

• Complexity Overload — As of early 2025, the sheer number of configuration options for 500+ models can be overwhelming for beginners.
• Mobile Bridge Setup — Connecting the mobile app to your local VS Code workspace requires a specific secure server setup that took us two tries to get right.
• UI Polish — Parts of the web dashboard still look bare-bones compared to more established competitors like Cursor.

⚔️ Kilo AI vs Competitors

Kilo competes directly with the big names in AI coding by offering more transparency and open-source control.

Competitor	Pick it instead of Kilo AI if…
Cursor	You want a more polished, all-in-one editor experience and don’t mind the subscription.
GitHub Copilot	You need basic autocomplete and want to stay entirely within the GitHub ecosystem.
Lovable	You are strictly doing web development and prefer a visual-first app building process.

👍 Pros & Cons

✅ Pros	❌ Cons
No markup on API token costs	Learning curve for CLI features
Open source and fully inspectable	Web app interface is plain
Syncs work between phone and PC	Model selection can be paralyzing
Works in multiple IDEs	Setup is slightly more manual

🎯 Who Should Use Kilo AI (And Who Shouldn’t)

✅ Use it if you:

• Are a technical founder who wants to use multiple AI models without multiple monthly bills.
• Value open-source software and want to see exactly how your code is being handled.
• Need to start tasks on mobile and finish them on your main workstation.

❌ Skip it if you:

• Want a zero-config experience; Cursor is more plug-and-play for absolute beginners.
• Only need simple code completions and are already paying for GitHub.
• Don’t like managing API keys or credit balances.

❓ Frequently Asked Questions

Is Kilo AI really free?
The tool and extensions are free, and some models are provided at no cost, but you pay for premium model usage at cost via the Kilo Gateway.

How does Kilo compare to Cursor?
Kilo is open source and works as an extension in many IDEs, while Cursor is a standalone fork of VS Code with a more integrated but closed ecosystem.

Can I use my own API keys with Kilo?
Yes, Kilo supports Bring Your Own Key (BYOK) for providers like OpenAI, Anthropic, and others.

What is a Kilo Pass?
It is an optional subscription that gives you a set amount of credits with a bonus (up to 50%) for heavy users.

Does Kilo work on mobile?
Yes, there are iOS and Android apps that let you chat with the AI and sync your coding sessions.

Is Kilo AI secure for business code?
Kilo is SOC 2 Type I compliant and offers enterprise-grade security features for regulated environments.

Looking for more tools like this? See all coding tools we’ve reviewed →