Software developers and indie hackers are collectively spending hundreds of dollars every year on AI coding subscriptions like GitHub Copilot ($10–$19/month) or Cursor Pro ($20/month). While these tools boost productivity, recurring fees add up fast—especially when rate limits hit right in the middle of a critical debugging session. What if you could access one of the world’s most powerful coding models—Alibaba’s flagship Qwen 3.6 Plus—inside Google Antigravity?

TL;DR: Google Antigravity provides native support for third-party open-weights models through extensions. By installing the Qwen Code Companion extension inside Google Antigravity, you can activate the high-intelligence Qwen 3.6 Plus model. While Alibaba initially launched a 1M daily promotional token tier, regional quotas have shifted. This complete guide walks you through the official setup, configuration, and the best zero-cost methods to run Qwen models indefinitely without paid subscriptions.

---

---

---

What You’ll Learn

• Why Qwen 3.6 Plus is a formidable rival to Claude 3.5 Sonnet and GPT-4o for coding
• How to access and configure your workspace in Google Antigravity
• Step-by-step installation of the Qwen Code Companion extension
• How to activate the Qwen 3.6 Plus model in your developer workspace
• How to track token consumption and manage context windows
• 100% Free Alternatives: Connecting local Qwen 2.5 Coder via LM Studio / Ollama
• Practical coding examples: generating boilerplate, debugging errors, and writing unit tests
• Cost comparison between Antigravity model setups and paid IDE extensions

---

Qwen 3.6 Plus in Antigravity at a Glance

Feature	Detail
IDE Platform	Google Antigravity
Extension Required	Qwen Code Companion
Model	Qwen 3.6 Plus (and Qwen 2.5 Coder)
Cloud Cost	Free Developer Tier / Promotional Credits (Paid API overages)
Offline / Local Alternative	100% Free Unlimited via LM Studio / Ollama Local Server
Supported Languages	Python, JavaScript/TypeScript, Go, Rust, C++, PHP, and 50+ more
Primary Capabilities	Real-time inline completion, chat refactoring, automated unit tests, docstring generation

Why Qwen 3.6 Plus Is a Serious Copilot & Cursor Rival

Alibaba’s Qwen series has rapidly climbed the open-weights and coding leaderboards (HumanEval and SWE-bench). Qwen 3.6 Plus represents their enterprise-tier reasoning model, tuned specifically for multi-file repository understanding, strict syntax accuracy, and architectural planning.

Here is why developers are switching to it inside Antigravity:

1. Deep Language Polyglot: It excels not only in popular languages like Python and TypeScript, but also in low-level systems languages (Rust, C++) and devops automation (Docker, Kubernetes manifests, Bash).
2. Low Latency & High Reasoning: Inside Antigravity, completions stream with sub-second latency, giving you instant tab-completions as you type.
3. Open Architecture: Unlike locked proprietary IDEs, Antigravity allows you to customize the underlying model provider or route requests to local servers.

Step 1: Accessing Google Antigravity

Before installing extensions, make sure you have access to Google Antigravity:

1. Navigate to the official Google Antigravity website.
2. Download and install the IDE.
3. Open the Antigravity IDE and sign in with your standard Google account (Google Workspace or personal Gmail).
4. Open an existing coding workspace or initialize a new project workspace.
5. You will be greeted by the Antigravity developer interface (featuring a familiar, highly responsive VS Code-compatible layout with an integrated file tree, editor, terminal, and AI side panel).

Step 2: Installing the Qwen Code Companion Extension

Just like VS Code, Google Antigravity features a built-in Extension Marketplace:

1. Click on the Extensions icon on the primary activity sidebar (or press keyboard shortcut Ctrl + Shift + X).
2. In the marketplace search bar, type:
   

   Qwen Code Companion

   
   
3. Locate the official Qwen Code Companion extension from the search results.
4. Click Install. Within a few seconds, the extension will be active and an official Qwen icon will appear on your side panel.

Step 3: Activating the Qwen 3.6 Plus Model

Once the extension is installed, you need to login to Alibaba cloud then select and activate the model:

1. Click the Qwen icon on the side panel to open the companion interface.
2. Type /login in the chat terminal. if you already have an account it will log you in to the CLI otherwise redirect you to Alibaba cloud website to sign up.
3. Type “/” in the chat terminal and choose Switch Model from the options at the top of the chat panel.
4. You will see several model tiers (such as Qwen 2.5 Coder, Qwen 3.0, and Qwen 3.6 Plus). Select Qwen 3.6 Plus.
5. Once selected, you are ready to use the Qwen 3.6 Plus model.

Step 4: Tracking Tokens & Managing Quotas

The Qwen Code Companion interface includes transparent usage telemetry:

• Look at the bottom right of the Qwen panel: you will see a live Token Counter tracking session usage.
• Context Window Hygiene: To maximize your token efficiency on large codebases, use @file mentions to feed only relevant helper files into the prompt rather than sending your entire node_modules or vendor directories.
• If Your Cloud Allocation Expires: If Alibaba’s free promotional quota reaches its ceiling in your region, do not worry—you do not need to buy paid subscriptions. Follow Step 5 below for the zero-cost offline alternative.

Step 5: The 100% Free Workaround (Local Qwen via LM Studio)

If you want completely unlimited, forever-free coding without cloud quota limits, you can route Antigravity to a local Qwen instance:

1. Download LM Studio and download Qwen 2.5 Coder 7B GGUF (or 14B).
2. Start LM Studio’s Local Server on http://localhost:1234/v1.
3. In Google Antigravity extension settings, change the API Endpoint URL to:
   

   http://localhost:1234/v1

   
   
4. Now your code autocompletion and chat refactoring are powered entirely by your local hardware with zero rate limits, zero fees, and 100% privacy.

Step 6: Real-World Testing & Productivity Workflows

Here are three ways to put Qwen to work immediately inside your Antigravity project:

1. Real-Time Inline Code Completion (Ghost Text)

As you start writing a function (e.g., def calculate_shipping_rates(weight, destination):), Qwen suggests gray ghost text completions. Press Tab to accept the suggestion.

2. Deep Refactoring via Chat

Highlight any messy block of code, press Ctrl + L to open Qwen Chat, and prompt:

“Refactor this function to improve algorithmic time complexity from O(n²) to O(n), and add type hints with comprehensive docstrings.”

3. Automated Unit Test Generation

Select an API route or utility class and prompt:

“Write complete pytest unit tests for this class, covering edge cases for empty inputs, null pointers, and network timeouts.”

---

Cost Comparison: Qwen in Antigravity vs. Paid AI Coding Tools

Feature	Qwen 3.6 Plus (Antigravity Setup)	GitHub Copilot	Cursor Pro
Monthly Price	$0.00 / month (via Local / Dev Tier)	$10 – $19 / month	$20 / month
Credit Card Required	No	Yes	Yes
Usage Limits	Unlimited (via Local Qwen) / Regional Dev Quota	Soft capped / Throttled	500 fast requests / month
Model Intelligence	Enterprise-grade (Qwen 3.6 / 2.5 Coder)	GPT-4o / Claude 3.5	Claude 3.5 Sonnet
Annual Savings	—	Save $120 – $228 / year	Save $240 / year

---

Summary & What to Try Next

Connecting Google Antigravity with Qwen gives you a formidable AI coding workstation without locking yourself into expensive vendor subscriptions:

1. Open your workspace in Google Antigravity.
2. Install the Qwen Code Companion extension from the marketplace.
3. Activate Qwen 3.6 Plus or connect to a local Qwen 2.5 Coder server.
4. Code faster with full flexibility and control over your AI tooling.

If you enjoy free AI developer tools, be sure to check out my guides on How to Use GLM 5.2 and DeepSeek V4 for Free in VS Code via Cline and How to Run QWEN 3.6 27B on a Laptop with Only 6GB VRAM (Prism ML + Llama.cpp).

---

Frequently Asked Questions (FAQ)

Did Alibaba discontinue the 1 million free daily tokens for Qwen 3.6 Plus?

Yes, the original 1M daily free promotional cloud token allocation has transitioned to regional developer credits and standard API tiers in several locations. If you see quota limits on the cloud tier, you can continue coding 100% free by setting your Antigravity AI endpoint to a local instance of Qwen 2.5 Coder running in LM Studio or Ollama, or by using free developer keys on OpenRouter.

Can Qwen read multiple files across my Antigravity repository?

Yes. Qwen Code Companion supports repository-wide context. You can use workspace mentions (like @workspace or @file:filename.py) to give the model awareness of cross-file imports, database schemas, and shared utilities.

Is my private code used to train public AI models?

When running through local endpoints (LM Studio), zero data ever leaves your computer. When using the developer cloud tier, workspace files are processed ephemerally for inference and are not ingested into public training sets. Always review your enterprise privacy settings for proprietary company IP.