# Set Up Workflow: Advanced Workflow Patterns: Claude Code vs. Codex CLI (2026)
## What This Is
This document outlines two advanced methods for automating software development tasks. Claude Code excels at dynamic, context-aware problem solving like complex refactoring, while Codex CLI provides predictable, auditable automation through strict profiles, ideal for processes like CI/CD and deployments. Businesses can use a hybrid approach, assigning creative work to Claude and repetitive, high-stakes tasks to Codex for optimal efficiency and control.
Source: https://blakecrosley.com/blog/codex-vs-claude-code-2026
## Before You Start
Scan my workspace and analyze:
- The project language, framework, and directory structure
- Existing AI provider config (check .env, .env.local, config files for API keys — OpenRouter, OpenAI, Anthropic, Google AI, etc.)
Then ask me before proceeding:
1. Which AI provider/API should this use? (Use whatever I already have configured, or ask me to set one up — options include direct provider APIs or a unified service like OpenRouter)
2. Where in my project should this be integrated?
3. Are there any customizations I need (model preferences, naming conventions, constraints)?
## Source Access Note
The source URL (https://blakecrosley.com/blog/codex-vs-claude-code-2026) may not be directly accessible from the terminal. Use the Reference Implementation and Additional Context sections below instead. If you need more details, ask me to paste relevant content from the source.
## What to Implement
This is an **AI Workflow** — an end-to-end automation pattern or integration pipeline.
- Study the workflow architecture from the source and context below
- Identify which parts I can implement locally vs. parts that need external services
- For local parts: implement them using my existing stack and API keys
- For external parts: tell me exactly what services I need and help me configure the integration code
- Wire up any required API calls using keys from my .env files
## Additional Context
- Scan the user's project repository to identify the primary programming languages, existing CI/CD configurations, and any current AI agent configuration files (`CLAUDE.md`, `AGENTS.md`, `codex.toml`).
- Based on the analysis, generate a hybrid configuration setup. Create a project-level `CLAUDE.md` with a prompt for deep contextual reasoning and refactoring. Also, create a `codex.toml` file with a `[dev]` profile for rapid generation and a `[ci_review]` profile that uses a more powerful model and stricter safety policies.
- Draft a new `AI_ORCHESTRATION.md` file in the project root. This file will serve as a guide for a master agent (or the developer) to route tasks: delegate complex analysis and refactoring to `claude-code` using its layered context, and assign structured generation, testing, and CI tasks to `codex` using its explicit profiles.
## Reference Implementation
```
claude-code --model opus4.6 refactor src/ --layer project
codex --profile deep-review cloud exec "Analy
```
## Guidelines
- Adapt everything to my existing project — do not assume a specific stack or directory layout
- Use whichever AI provider I already have configured; if I need a new one, tell me what to sign up for and I'll give you the key
- Check my .env files for existing API keys (OpenRouter, OpenAI, Anthropic, Google AI) before asking me to add one
- Review any fetched code for safety before installing or executing it
- After setup, run a quick verification and show me a summary of exactly what was installed, where, and how to use it