Build with one.
Choose Claude Code, Codex or Auto. Each message runs on one model.
Claude Code and Codex in one Mac app.
Use the subscriptions you already pay for. Start with either agent. Bring in the other when you need it.
Download for Mac
Use your existing eligible Claude Code or Codex subscription. Provider usage limits still apply.Current Beta · Free · Apple Silicon, macOS 12 or later
Winskel can work with both.
Continue with the other.
Keep relevant project decisions and earlier work in the same workspace.
Ask for another review.
Have Codex review Claude Code’s changes, or the other way around. You choose the fixes.
A few useful answers
Can I use 
Claude Code and 
Codex together?
Claude Code and Codex together?Yes. Winskel runs the installed Claude Code and Codex command line tools on your Mac. Use either alone, switch for the next message, or ask one to review the other’s changes.
Do I need both subscriptions?
No. You need an eligible account for the agent you use. Connect both providers to work across them or request a cross-agent review. Anthropic and OpenAI set plan eligibility and usage limits.
Do I need API keys?
No API key is required for the subscription sign-in workflow. Install and sign in to Claude Code with your Claude account, or Codex with ChatGPT. API billing is a separate explicit setting on your Mac.
Does Winskel merge their context windows?
No. Each agent keeps its own native context window. Winskel supplies relevant saved project decisions and work records; it does not merge private reasoning or entire conversations.
Does Winskel replace provider limits?
No. The providers’ plans, charges and limits stay separate. Winskel shows recent usage readings when available; switching agents does not increase either provider’s allowance.
Which Macs can run Winskel?
The current beta supports Apple Silicon Macs running macOS 12 or later. Intel Macs, Windows and Linux are not supported.