TOOL LAB Developer Tools Beginner Tested October 2026

DeepSeek: Free AI Coding Assistant Setup (2026)

⚡ VERDICT

Best for: Developers who want free AI code completions and chat inside VS Code without a Copilot subscription.

Skip if: You need enterprise-grade compliance, on-premise deployment, or guaranteed uptime SLAs.

Price: Free tier available; paid API pricing varies — check official DeepSeek pricing page (checked 2026-10-15).

Skill level: Beginner

Time to first result: [TODO: our test] measure, don't estimate

Score: [TODO: our test] measure, don't estimate

🚀 Quick start

Install the Continue extension in VS Code.
Add DeepSeek as an OpenAI-compatible provider using your API key.
Set the model to deepseek-coder-v2 for chat and autocomplete.
Start typing in any code file to see inline suggestions.

💡 Why use DeepSeek for this

DeepSeek offers an OpenAI-compatible API that can power free or low-cost AI coding assistance in VS Code via the Continue extension. This guide walks through connecting your DeepSeek API key to Continue, configuring the model, and enabling inline tab completions and chat. Plan limits and model availability change frequently; verify current details on DeepSeek's official platform (checked 2026-10-15).

🛠️ How to Free AI Coding Assistant Setup (5 steps)

Step 1

Open VS Code and install the Continue extension from the Extensions panel (search 'Continue', click Install).

Step 2

Open Continue settings (gear icon), click 'Add model', choose 'OpenAI' as provider, set Base URL to 'https://api.deepseek.com/v1', paste your DeepSeek API key, set Model to 'deepseek-coder-v2', and click 'Add'.

Step 3

In Continue settings, under 'Tab Autocomplete', select 'deepseek-coder-v2' as the model.

Step 4

Under 'Chat', select 'deepseek-coder-v2' as the default model, then close settings.

Step 5

Open a code file and start typing to see gray inline suggestions; press Tab to accept.

📦 What you'll get

After setup, you get inline code completions as you type and a chat panel that can answer questions about your code.

💰 Pricing (checked 2026-10-15)

Plan	Price	What you get for this workflow	Official link
Free	`$0`	Limited API credits; check official page for current limits	pricing ↗
Pay-as-you-go	`Varies by model`	API access with usage-based billing	pricing ↗

📋 Copy-paste prompts

PROMPT 1 — Code Review

"Review this code for performance issues, security flaws, and best practices. List each issue with the relevant code snippet and a suggested fix."

PROMPT 2 — Refactor

"Refactor the following function to use async/await syntax while preserving its exact behavior. Show the before and after."

PROMPT 3 — Generate Unit Tests

"Write pytest unit tests for the class DataProcessor covering edge cases: empty input, large numbers, and invalid types."

⚠️ Common mistakes

❌ Using model name 'deepseek-coder' instead of 'deepseek-coder-v2'

Why it happens: Outdated tutorial

✅ Quick Fix: Update the model name in Continue settings to deepseek-coder-v2.

❌ Tab completions not appearing

Why it happens: Tab autocomplete model not set or disabled

✅ Quick Fix: In Continue settings, under 'Tab Autocomplete', ensure it's enabled and set to deepseek-coder-v2.

❌ API key invalid or exhausted

Why it happens: Free tier has daily limits

✅ Quick Fix: Sign up for a free DeepSeek account (no credit card) to get a fresh API key with generous limits.

⚖️ DeepSeek vs Alternatives

Tool	Price	Best For	Verdict
	`Starts at $10/month (Individual)`
	`Free tier; Pro at $20/month`

❓ Frequently Asked Questions

Q: Is DeepSeek free to use?

DeepSeek offers a free tier with limited API credits. Check the official pricing page for current limits.

Q: Can I use DeepSeek with VS Code?

Yes, via the Continue extension by configuring it as an OpenAI-compatible provider.

Q: What model should I use for coding?

The deepseek-coder-v2 model is recommended for coding tasks.

Q: Do I need a GPU?

No, DeepSeek runs in the cloud; you only need an API key.

Q: How do I get an API key?

🛡️ Facts checked against official pages on October 2026:

platform.deepseek.com ↗ · platform.deepseek.com ↗ · docs.continue.dev ↗ · github.com ↗