About Lumo, the privacy-first AI assistant | Lumo by Proton vs OpenCode | The open source AI coding agent

## Lumo vs OpenCode: A Comparative Analysis

When selecting an AI tool, the choice often depends on whether your priority is general-purpose privacy or specialized coding efficiency. Lumo by Proton and OpenCode represent two distinct approaches to artificial intelligence, catering to different user bases while sharing a strong commitment to data sovereignty.

### Core Identity and Use Case

**Lumo** is positioned as a privacy-first general AI assistant. Developed by the team behind Proton Mail, it targets individuals and professionals who need a secure, everyday companion for writing, brainstorming, and information retrieval. Its primary value lies in its strict no-logs policy and zero-access encryption, ensuring that personal conversations are never used for training or advertising.

**OpenCode**, conversely, is a specialized AI coding agent designed for developers. It integrates directly into terminals, IDEs, and desktop environments. With support for over 75 LLM providers, OpenCode focuses on flexibility in model selection and seamless workflow integration, allowing developers to leverage existing subscriptions or local models for code generation and debugging.

### Privacy and Data Security

Both tools emphasize privacy but implement it differently:

* **Lumo** employs **zero-access encryption** for all chat history. As a European service, it is fully GDPR compliant. The source code is open, allowing independent verification that user data is never harvested for training. This makes it ideal for handling sensitive personal or business information.

* **OpenCode** guarantees that it **does not store any code or context data**. It acts as a bridge to various LLM providers, prioritizing the protection of intellectual property. For enterprise users, it offers self-hosting capabilities and Single Sign-On (SSO), providing granular control over data residency and access.

### Features and Flexibility

* **Model Agnosticism:** OpenCode stands out by supporting 75+ LLM providers, including local models and major cloud APIs. This allows developers to switch between models based on performance or cost. Lumo, while open-source, primarily offers its own curated AI experience, though it allows for "Custom Lumos" in paid tiers to adjust behavior.

* **Platform Integration:** Lumo is accessible via Web, iOS, and Android, making it a versatile mobile and desktop assistant. OpenCode is native to the developer ecosystem, offering a Terminal UI (TUI), Desktop App, and IDE extensions, ensuring it fits into complex coding environments without context switching.

* **Enterprise Readiness:** OpenCode provides explicit enterprise features like SSO and self-hosting, appealing to organizations with strict IT governance. Lumo’s enterprise focus is on compliance and data deletion rights, suitable for teams requiring high confidentiality in general communications.

### Verdict

Choose **Lumo** if you need a secure, general-purpose AI assistant for daily tasks, writing, and research, with a guarantee that your personal data remains private and untrained upon. Choose **OpenCode** if you are a developer seeking a flexible, open-source coding agent that integrates into your IDE or terminal, supports multiple LLM providers, and ensures your code snippets are never stored by the platform.

| Feature | Lumo by Proton | OpenCode |

| :--- | :--- | :--- |

| **Primary Use** | General AI Assistant | AI Coding Agent |

| **Privacy Model** | Zero-Access Encryption, No Training | No Code Storage, Self-Hosting |

| **Model Support** | Curated Proton AI | 75+ Providers (Local & Cloud) |

| **Platforms** | Web, iOS, Android | Terminal, Desktop, IDE Extensions |

| **Best For** | Personal & Professional Confidentiality | Developer Workflows & IP Protection |