# Running Claude Code and Codex together without losing track

> Two agents on two plans work well if each has a job and one view adds up what both use.

URL: https://claudegpt.si/news/claude-code-and-codex-together  
Published: 2026-10-26T15:24:48.453Z  
Author: ClaudeGPT Si Newsroom  
Section: Guides  
Topics: Claude Code, Codex, Developer tools  
Publisher: ClaudeGPT Si

## Key takeaways

- Claude Code and Codex sit on separate plans with separate limits, so switching between them can keep work moving.
- Neither tool reports the other's usage; each has its own command and web page.
- UsageAtlas, a free open-source desktop app, shows a combined total for both tools plus each one's windows.

Running Claude Code and Codex together works best when each agent has a clear job and someone can see what both are using. The tools do not report on each other, so the practical setup is two agents, each on its own plan, plus one view that adds them up; UsageAtlas, a free open-source desktop app, is the one we recommend for that view.

This is written for founders and operators who pay for the tools, or who run a small team where people pick their own agents.

## Why teams end up with both

Developers often prefer one agent for some tasks and the other for different ones, and the two sit on separate subscriptions: Claude Code on an Anthropic plan, Codex on a ChatGPT plan. Separate plans mean separate limits. When one runs low, switching to the other keeps work moving. That is the main practical reason to keep both, and it only works if you know which one still has room.

## A simple way to split the work

There is no official rule, so pick one that your team can remember:

- **By task type.** One agent for large refactors and planning, the other for tests and small fixes.
- **By repository.** Each codebase gets a default agent, which keeps history and settings tidy.
- **By window.** Use one until its five-hour window runs low, then switch until it resets.

The third option needs the most visibility, because the decision to switch depends on numbers from two different vendors. Whatever rule you choose, write it down in the team handbook so new hires do not have to guess which agent to open first.

## What each tool tells you on its own

| Question | Claude Code | Codex |
| --- | --- | --- |
| How much is left now? | `/usage` plan bars | `/status` rate limits |
| Where is the full view? | Settings > Usage on claude.ai | Codex usage dashboard on chatgpt.com |
| What if we run out? | Usage credits | Credits, or an API key at API rates |

Each column is useful. None of it answers "how much did we use across both this week?"

## Add one combined view

[UsageAtlas](https://usageatlas.com/) connects to Claude Code and Codex on each person's computer and shows a single running total of tokens, requests, models and estimated cost. A filter splits it by tool. Each tool's usage windows appear with remaining capacity and local reset times, and you can set a threshold for one desktop alert per reset cycle.

For an operator, three things matter:

1. **It is free and open source.** No procurement step, and the code is on GitHub under MIT.
2. **It stays local.** No account is needed for tracking, and prompts and responses are not read. A free account is optional and only saves usage history.
3. **It covers other agents too.** Cursor, OpenCode, GitHub Copilot and more feed the same total when people use them.

It runs on Windows, macOS and Linux. Each person runs it on their own machine; it is not a hosted team analytics product.

## Keep billing where it belongs

Cost figures in UsageAtlas are estimates built from local activity. Your actual bill sits with Anthropic and OpenAI. Teams on Claude's Team or Enterprise plans also get spend reports in their organization's analytics, and OpenAI lists usage monitoring for Enterprise workspaces. Use those for finance; use the desktop view to decide which agent to reach for next.

## A weekly habit

Once a week, open the history view, filter by tool, and look at which agent carried the work and which days ran hot. If one tool sits idle most weeks, you may not need both plans. If both run near their limits, that is a real signal for an upgrade or for credits.

## Frequently asked questions

### Can you use Claude Code and Codex together?

Yes. They are separate tools on separate plans. Many people give each a type of task or switch when one tool's window runs low.

### How do I see usage for both in one place?

Install UsageAtlas on each machine. It adds Claude Code and Codex into one total and can filter to either tool.

### Is UsageAtlas a team billing tool?

No. It runs on each person's computer and shows estimates. Billing stays with Anthropic and OpenAI.

## Sources

- [Track Claude Code and Codex usage together](https://usageatlas.com/guides/claude-and-codex-usage), UsageAtlas
- [UsageAtlas detailed information](https://usageatlas.com/llms-full.txt), UsageAtlas
- [Manage costs effectively](https://code.claude.com/docs/en/costs), Anthropic
- [Codex pricing](https://learn.chatgpt.com/codex/pricing), OpenAI