TL;DR

I've been using this workflow for months now, making every mistake along the way so you don't have to. Here's what actually works.

Got questions about Claude Code? Here are answers to the 15 most common ones: pricing, setup, models, privacy, offline use, and more. If you are looking for the complete setup guide, start with our Claude Code Complete Guide 2026.

Setup & Installation

1. What are the system requirements for Claude Code?

Node.js 18+ and npm (or yarn/pnpm)
macOS, Linux, or Windows WSL2 (native Windows not officially supported but works via WSL2)
Git (used for atomic commits and change tracking)
Minimum 8GB RAM recommended (context window management uses memory)

2. How do I install Claude Code?

terminal

npm install -g @anthropic-ai/claude-code
claude --version  # verify installation

You will also need an Anthropic API key from console.anthropic.com. Set it via `export ANTHROPIC_API_KEY="sk-a...intuitive. The agent does not need network access for basic operations once the project files are loaded. However, the underlying AI model runs on Anthropic's cloud servers, so an internet connection is required for every query.

No, Claude Code cannot work fully offline. The code editing happens locally, but the AI model inference runs on Anthropic's servers. Every prompt you send requires an active internet connection.

4. Can I use Claude Code with local models (Ollama, LM Studio)?

Not directly. Claude Code is tightly integrated with Anthropic's API and does not support local model backends like Ollama or LM Studio. If you want a terminal AI coding agent that works with local models, consider Aider (supports Ollama, DeepSeek, and any OpenAI-compatible endpoint) or Continue.dev for IDE-based local model integration.

Pricing & Billing

5. How much does Claude Code cost?

Claude Code uses Anthropic's standard API pricing. You pay per token:

Model	Input (per 1M tokens)	Output (per 1M tokens)
Claude Sonnet 5	$3.00	$15.00
Claude Opus 4.8	$15.00	$75.00
Claude Haiku 3.5	$0.80	$4.00

A typical coding session costs $2-5/hour. Heavy daily users report $150-400/month. There is no free tier beyond Anthropic's occasional API credits for new users.

6. What is Claude Max? Is it better than pay-as-you-go?

Claude Max is a flat-rate subscription launched in June 2026:

$100/month , Up to 5× Claude Pro usage (suitable for moderate daily use)
$200/month , Up to 20× Claude Pro usage (suitable for professional developers)

If you spend more than $200/month on pay-as-you-go, Claude Max is cheaper. If you use Claude Code only a few days per week, pay-as-you-go may be more economical.

7. How do I track my Claude Code spending?

Check your Anthropic Console Usage page. You can also set billing alerts and monthly spending caps. Inside Claude Code, use the /usage command if your version supports it (v2.1+).

8. Does Claude Code have a free tier?

No. There is no permanent free tier for Claude Code. Anthropic occasionally offers free API credits for new accounts (typically $5), but these are one-time introductory credits. After they are exhausted, you must add a payment method to continue using Claude Code.

Models & Performance

9. Which model should I use with Claude Code?

Model	Best For
Claude Sonnet 5	Default choice. Best balance of speed, cost, and capability. Use for daily coding.
Claude Opus 4.8	Complex architecture design, large-scale refactoring, security audits. 5× more expensive.
Claude Haiku 3.5	Quick fixes, linting, boilerplate generation, simple tests. 4× cheaper than Sonnet.

10. Can Claude Code handle large codebases?

Yes. Claude Code uses repo-map technology that indexes your entire codebase and provides the agent with a high-level understanding of project architecture. For very large monorepos (100K+ files), performance may degrade. Use /compact frequently and consider configuring .claude/settings.json to exclude irrelevant directories.

11. What is the context window size?

Claude Code uses the same context window as the underlying model , 200K tokens for Claude Sonnet 5 and Opus 4.8. In practice, sessions over 50 turns may start losing earlier context. Use /compact to summarize history and free context space.

Workflow & Best Practices

12. Does Claude Code require Git?

Git is not strictly required but is strongly recommended. Without Git, Claude Code cannot create atomic commits or track changes with diffs. You lose the ability to review and revert changes. If you start Claude Code in a non-Git directory, it will warn you.

13. How do I share or resume a Claude Code session?

Claude Code automatically saves your session history. To resume a previous session:

terminal

claude --resume

To share a session with teammates (including all context and tool outputs), the session JSON files are stored in ~/.claude/sessions/. You can copy these files to share exact context. Note: sharing sessions may expose API keys or sensitive data in the conversation history.

14. Can Claude Code write and run tests?

Yes, this is one of its strengths. You can ask Claude Code to:

code

"Write unit tests for the calculateDiscount function with edge cases for zero, negative, and null inputs"
"Run the test suite and fix any failures"
"Add integration tests for the new API endpoint and run them"

Claude Code can write tests, execute them, read the output, and iterate on fixes, all in a single session.

15. Is my code sent to Anthropic? What about privacy?

Yes, your code is sent to Anthropic's API servers for model inference. Anthropic's data usage policy states that:

API data is not used to train models by default (unless you opt in)
Data is retained for abuse monitoring for up to 30 days
Enterprise plans can negotiate zero data retention

If your company requires on-premise AI coding or zero external data transmission, Claude Code is not suitable. Consider local alternatives like Aider with Ollama or Continue.dev with local models.

Comparisons

How does Claude Code compare to Cursor and Copilot?

For a detailed comparison, see our Claude Code vs Cursor vs Copilot 2026 comparison. Quick summary:

Claude Code: Best for terminal-native developers, CI/CD automation, complex refactors
Cursor: Best for visual developers, full-stack apps, UI editing
GitHub Copilot: Best for in-editor completions, fixed monthly pricing, minimal setup

Still Have Questions?

If your question is not covered here, check our Claude Code Complete Guide 2026 for comprehensive coverage, or browse our other Claude Code resources:

Claude Code FAQ 2026: Pricing, Setup, Models, Privacy & Common Questions Answered