# Lumo vs Mistral Vibe (formerly Le Chat)

> Lumo: Privacy-first AI assistant from Proton with zero-access encrypted chats and no logging
> Mistral Vibe (formerly Le Chat): Mistral AI's chat assistant and coding agent for everyday work and software tasks

- Lumo profile: https://finderatlas.com/tools/lumo
- Mistral Vibe (formerly Le Chat) profile: https://finderatlas.com/tools/mistral-le-chat
- Comparison page: https://finderatlas.com/compare/lumo-vs-mistral-le-chat
- Last reviewed: October 2026

## Verdict

Lumo and Mistral Vibe (formerly Le Chat) are both AI Assistants tools. Mistral Vibe (formerly Le Chat) scores higher in FinderAtlas's editorial review (8.4 vs 7.6 out of 10), led by value for money. Both have a free plan or trial. Only Mistral Vibe (formerly Le Chat) is available on CLI, VS Code Extension and JetBrains Plugin and offers an API.

### Choose Lumo if

- You want a tool built for everyday AI chat, web-assisted questions, document and image work without conversation logging or training on user data.
- Zero-access encryption on saved chats, with a stated no-logging policy.
- Open-source code and open-source models that can be inspected.

### Choose Mistral Vibe (formerly Le Chat) if

- You want a tool built for multilingual chat and writing.
- Free plan includes web search, basic image generation and 100+ connectors.
- Pro at $14.99 per month includes $15 per month in API credits.

## Pricing

| | Lumo | Mistral Vibe (formerly Le Chat) |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | Lumo | Mistral Vibe (formerly Le Chat) |
| --- | --- | --- |
| Zero-Access Encrypted Chats | Yes | Not listed |
| Open-Source Models | Yes | Not listed |
| Web Search | Yes | Not listed |
| Image Generation and Editing | Yes | Yes |
| Projects | Yes | Not listed |
| Custom Lumos | Yes | Not listed |
| Proton Drive Integration | Yes | Not listed |
| Guest Mode | Yes | Not listed |
| Memory and Personalization | Yes | Not listed |
| Chat with web search | Not listed | Yes |
| Work mode | Not listed | Yes |
| Connectors and MCP | Not listed | Yes |
| Image generation and editing | Yes | Yes |
| Spreadsheets, slides and Canvas | Not listed | Yes |
| Libraries and project folders | Not listed | Yes |
| Task scheduling | Not listed | Yes |
| Voice mode | Not listed | Yes |
| Vibe for code | Not listed | Yes |

## Platforms

| Platform | Lumo | Mistral Vibe (formerly Le Chat) |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | No |
| macOS | No | No |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | No | Yes |
| Browser Extension | No | No |
| CLI | No | Yes |
| VS Code Extension | No | Yes |
| JetBrains Plugin | No | Yes |

## Lumo strengths

- Zero-access encryption on saved chats, with a stated no-logging policy.
- Open-source code and open-source models that can be inspected.
- Permanent free tier with guest access and no credit card.
- Web, iOS and Android apps.
- Run by Proton AG, a Swiss company, and stated to comply with GDPR.

## Lumo limitations

- Free chat history is kept for only 7 days.
- Uses open-source models rather than the proprietary frontier models of larger rivals.
- No desktop app or public API found.
- Lumo Plus limits are described only as "more" than Free, not as numbers, and the plan costs $12.99/month ($9.99/month billed annually).

## Mistral Vibe (formerly Le Chat) strengths

- Free plan includes web search, basic image generation and 100+ connectors
- Pro at $14.99 per month includes $15 per month in API credits
- Chat assistant and coding agent in one product, with CLI and IDE plugins
- Remote MCP connectors and scheduled tasks
- Enterprise option for on-premises or private cloud deployment
- Student plan at $5.99 per month

## Mistral Vibe (formerly Le Chat) limitations

- Plans use relative limits ("up to 6x free") rather than published message counts
- Pricing page layout and plan details have changed since the rebrand, and the connector directory is still marked beta
- Connector and plugin ecosystem is smaller than that of the largest assistants
- Mobile store listings still use the Le Chat name, which can confuse new users

## FAQ

**Is Lumo better than Mistral Vibe (formerly Le Chat)?**

It depends on your workflow. Lumo is built for everyday AI chat, web-assisted questions, document and image work without conversation logging or training on user data. Mistral Vibe (formerly Le Chat) is built for multilingual chat and writing.

**What are the key feature differences between Lumo and Mistral Vibe (formerly Le Chat)?**

Lumo: Privacy-first AI assistant from Proton with zero-access encrypted chats and no logging. Mistral Vibe (formerly Le Chat): Mistral AI's chat assistant and coding agent for everyday work and software tasks.

**Does Lumo or Mistral Vibe (formerly Le Chat) have a free plan?**

Yes, both do. Lumo is freemium and Mistral Vibe (formerly Le Chat) is freemium, and each has a free plan or trial.

**Which is cheaper, Lumo or Mistral Vibe (formerly Le Chat)?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.