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Native Windows coding workspace

Claude Desktop, built for serious project work.

Use Claude and ChatGPT models in one local Windows app. Connect GitHub, work inside approved folders, continue chats across devices, run Cowork tasks, and complete cited Deep Research without a separate provider login.

Claude Desktop Windows
ProjectsWebsite auditResearchGitHub reposCowork

Deep Research

Evidence is gathered while you keep working.

Switch chats without stopping the current task.

Comparing evidence
✓ Scope✓ Sources● Compare○ Report

One focused application

Chat, code, research, and manage projects.

The native renderer keeps your work local while authenticated APIs provide model access and synchronized conversation continuity.

Current models

Refresh the live catalogue for Opus 5.5, Sonnet 5.5, Fable 5.1, ChatGPT 6.1 Sol, ChatGPT 6 Sol and Astra.

Compare Answers

Compare an independent answer beside your chat without changing its history. Normal model usage applies.

Top up in the app

View current coding credit packs and complete Stripe, PayPal or Crypto checkout in a protected app window.

Official Plugin Directory

Search Anthropic's live marketplace and review, install, enable, update, disable, or remove role-specific toolkits from inside the app.

GitHub workspaces

Authenticate in GitHub's browser, choose a repository from a dropdown, clone it locally, and save a bounded private archive to your account workspace.

Cowork

Give the app an outcome. It plans, inspects approved project files, performs permissioned work, validates results, and produces deliverables.

Deep Research

A visible checklist, elapsed status, live web search, source comparison, citations, cancellation, and background progress across chats.

Files and vision

Analyze code, documents, spreadsheets, PDFs, and images with native open and save dialogs.

Artifacts and documents

Create editable code artifacts plus Word, Excel, PowerPoint, and PDF files inside an approved project.

Private continuity

Encrypted local sessions and synchronized chat metadata. Credentials, local paths, app grants, and file bodies are excluded from history sync.

Windows releases

Production first. Alpha only when you choose to test.

Production v2.1.5 is the mandatory tested release. The native C#/.NET 10/WinUI 3 host retains your encrypted account, history, local tools and current models. Close to the system tray, restore your existing shortcuts and taskbar pin, and choose whether to share your connection in Earn API $. Sharing requires explicit resale consent and Windows Administrator approval; rewards vary with verified availability. Existing users receive the verified Production update.

Production v2.1.5Main download for daily work

Anthropic's official Plugin Directory, separate synchronized project history, project Preview, managed publishing, GitHub, Cowork, and Deep Research.

Download latest Production
Alpha preference · Production v2.1.5Alpha preference, current Production

Production v2.1.5 uses the native Windows host with a bundled local WebView2 workspace. Existing Alpha users receive the same verified Production upgrade while retaining their preference for future experiments.

Alpha may contain bugs. New installations should use Production. This previous Alpha remains available only for test continuity and will immediately offer the Production upgrade.

Your accountSign in after installation

Select CodexAPI.pro and use the same dashboard username or email and password already assigned to your account.

View authenticated setup
Windows x64

Available now as a native C# / WinUI 3 application with verified in-app updates.

macOS

Coming soon.

The Windows download must not be installed on macOS.