Codex CLI + Claude Code agent: two agents, one app
Some tasks want speed and a clean terminal workflow. Others want deeper planning. CodexUse lets you run Codex CLI or Claude Code without mixing chats, tokens, or context.
Key takeaway: In CodexUse, the profile you pick decides the agent. Keep both
agents ready, then choose per task.
What this unlocks
- Two agents, one desktop app: Codex CLI and Claude Code.
- Separation by design: Chats stay split by agent and profile.
- Fast switching: Pick the profile you want and start working.
- No re-login for OpenAI twins: The Claude Code twin is created from the same OpenAI login.
How to create both agents for an OpenAI login
- Open CodexUse.
- Click Add Profile.
- Set Provider to OpenAI.
- Check Create both: Codex CLI + Claude Code.
- Finish the browser login.
After that, you will see two profiles:
- Your original profile (Codex CLI)
- A second one named like Your Name (Claude Code)
Already have an OpenAI profile?
On an OpenAI profile card, click the Copy icon to duplicate it for the other agent. CodexUse creates the twin and keeps the original intact.
When to use which agent
| Goal | Use | Why |
|---|---|---|
| Fast terminal-first coding | Codex CLI | Great for quick edits, simple tasks, and CLI workflows. |
| Deeper planning and longer tasks | Claude Code | Useful when you want a more deliberate coding agent loop. |
| Keep work and client context separated | Either | Use profiles to enforce clean separation, then pick the agent per profile. |
Troubleshooting
| Symptom | Likely cause | Action |
|---|---|---|
| I cannot create both agents | You do not have 2 profile slots available | Create one profile now, then add the twin later, or upgrade to Pro. |
| The Copy icon is disabled | The profile needs a token refresh | Click Fix or Re-login on that profile, then duplicate again. |
| Chats feel mixed | You are reusing the same profile for different contexts | Create a dedicated profile per workspace or client and keep them separate. |
Related
Do I need a separate login for Claude Code?
No for OpenAI profiles. Create a Claude Code twin from the same OpenAI login. Google profiles authenticate with Google.
Do Codex CLI chats mix with Claude Code chats?
No. CodexUse keeps chats separated by agent and profile.
Can I switch between agents quickly?
Yes. Pick the profile you want and start a chat. Keep both profiles side by side for fast switching.