⚠️ Disclaimer: This is not an official Anthropic product. I am not affiliated with Anthropic. This is a community desktop client providing free access to Claude Fable 5 (Mythos-class model). Access methods may be unstable or subject to changes. Use at your own risk and respect Anthropic's Terms of Service.
Claude Fable 5 Free Desktop App is a modern, lightweight desktop application that gives you free access to Claude Fable 5 — Anthropic’s powerful Mythos-class AI model. Experience advanced reasoning, coding, multimodal vision, and long-context conversations in a clean native interface.
- Claude Fable 5 Access — Full power of Anthropic’s Mythos-class model.
- Multimodal Support — Image analysis, file uploads, and vision capabilities.
- Advanced Reasoning & Coding — Excellent for complex problem solving and software development.
- Large Context Window — Handle long conversations and massive prompts.
- Native Cross-Platform App — Smooth performance on Windows, macOS, and Linux.
- Clean Modern UI — Beautiful chat interface with conversation history.
- System Tray & Hotkeys — Quick access and background running.
- Prompt Caching — Faster responses and better efficiency.
- Custom Instructions — Persistent system prompts and preferences.
- Chat Export — Save and organize your conversations.
- Proxy / Router Support — Works with various free access methods.
- Theme Support — Dark and light modes.
- Download the latest version using the button above.
- Extract the archive and run the application.
- Set up Access — Follow the in-app instructions for free Claude Fable 5 access.
- Start Chatting — Use the full capabilities of Claude Fable 5.
- Use detailed and structured prompts for best results.
- Upload images for visual analysis and creative tasks.
- Save important chats regularly.
- Windows 10 / 11
- macOS
- Linux
- Download the latest release archive.
- Extract to any convenient folder.
- Run the executable.
- Add an antivirus exception if prompted.
- Requires an active internet connection.
- Access method may require occasional updates.
- Best performance on modern hardware.
Important Notice:
This is an unofficial desktop client. Anthropic may change or restrict access at any time. Use responsibly and ethically.
Recommendations:
- Download only from this official GitHub repository.
- Scan files on VirusTotal.
- Review the source code for transparency.
Contributions are welcome!
- Fork the project.
- Create a feature branch (
git checkout -b feature/AmazingFeature). - Commit your changes.
- Push to the branch.
- Open a Pull Request.
Claude Fable 5 Free Desktop App is shared under the MIT License.
See LICENSE for details.
Copyright © 2026 TrenchesofChirac
- Thanks to Anthropic for creating Claude Fable 5.
- The open-source community for making powerful AI more accessible.
- All contributors improving the desktop experience.
Developed with ❤️ for the AI community