Are you worried about your API costs while using Claude Code? You are not alone! Claude Code is a powerful AI tool that helps you write and fix code, but it charges you based on how many tokens you use. If you want to keep your wallet happy and your projects running fast, you need to manage your “context window” wisely.
Here are 9 practical ways to cut down on token usage and become a Claude Code pro!
Suggested Read: What is Prompt Engineering?
1. Always Monitor Your Usage with the /usage Command
The first step to saving is knowing how much you spend! You can use the /usage command at any time to see your current token statistics. If you want to keep a close eye on things, you can even configure your status line to show your token usage continuously!
2. Clear Your Session Between Tasks
When you switch to a new, unrelated task, don’t let the old conversation stick around! Stale information in your chat window wastes tokens on every new message you send. Use the /clear command to start fresh. Pro tip: Use /rename before clearing so you can find your old session later if you need it!
3. Choose the Right Model for the Job
You don’t always need the most expensive brain! Sonnet is great for most coding tasks and costs much less than Opus. Save the Opus model for very complex architectural decisions or deep reasoning. You can switch models mid-session using the /model command.
4. Write Specific and Precise Prompts
Vague requests like “make my code better” force Claude to scan your whole project, which eats up tokens! Instead, be very specific, like “add input validation to the login function in auth.ts”. Precise prompts help Claude work efficiently with fewer file reads.
5. Use “Plan Mode” to Avoid Mistakes
Mistakes are expensive! By pressing Shift+Tab to enter Plan mode, you can have Claude explore your code and propose a plan before it actually writes anything. This prevents you from paying for expensive re-writes if the AI heads in the wrong direction!
6. Delegate Big Tasks to Subagents
If you need to process giant log files or fetch huge documents, don’t do it in your main chat! Subagents get their own fresh context window that is completely separate from your main conversation. This keeps the “noisy” details out of your main session and saves you a ton of tokens.
7. Keep Your CLAUDE.md File Lean
Your CLAUDE.md file loads into every single session, so if it is too long, it will cost you tokens every time you speak! Try to keep it under 200 lines. Move specialized instructions (like how to do a PR review) into skills, which only load when you actually need them.
8. Adjust Your “Extended Thinking” Settings
Claude’s deep reasoning is amazing, but “thinking tokens” are billed as output tokens. For simple tasks, you can lower the cost by reducing the effort level with the /effort command or by lowering the budget with MAX_THINKING_TOKENS.
9. Read Large Files in Small Chunks
If you have a massive file, don’t let Claude read the whole thing at once! This can fill up your context window and cause errors. Instead, ask Claude to read specific line ranges or just one function at a time. This keeps your session small and manageable!
Summary
Managing your tokens doesn’t have to be hard! By following these simple steps, you can keep your AI coding sessions efficient and affordable. Start using these tips today and watch your productivity soar!
Note: For official billing and the most accurate usage reports, always check the Usage page in your Claude Console.
