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Lumo vs Mistral Vibe (formerly Le Chat)

Features, pricing, ratings, and pros and cons, side by side.

Mistral Vibe (formerly Le Chat) logo

Mistral Vibe (formerly Le Chat)

Mistral AI's chat assistant and coding agent for everyday work and software tasks

Freemium
Visit websiteView details

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.

Best overall

Mistral Vibe (formerly Le Chat)

  • Knowledge workers
  • Software developers
  • Students
  • Teams

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.
Best for beginners
Lumo
Best for business
Mistral Vibe (formerly Le Chat)

Features

18 features compared.

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

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    Lumo
    Freemium
    Mistral Vibe (formerly Le Chat)
    Freemium
  • Free plan
    Lumo
    Yes
    Mistral Vibe (formerly Le Chat)
    Yes
  • Starting price
    Lumo
    $0
    Mistral Vibe (formerly Le Chat)
    $0
  • Plans
    Lumo
    2 plans
    Mistral Vibe (formerly Le Chat)
    4 plans

Lumo plans

  • Lumo Free

    $0

    Limited free access, no credit card required

    • Limited Max model usage
    • limited messages and chat history
    • limited image generations
    • 1 Project

  • Lumo Plus

    Most popular

    $12.99/month

    Individuals who want higher limits

    • More Max model usage
    • more messages and chat history
    • more image generations
    • unlimited Projects
    • unlimited Custom Lumos

Mistral Vibe (formerly Le Chat) plans

  • Free

    $0

    Limited access to Vibe on web and mobile

    • Limited messages and web searches
    • Limited coding sessions
    • Basic image generation and editing
    • 100+ connectors
    • Up to 5 scheduled tasks

  • Pro

    Most popular

    $14.99/month

    More access and usage for all-day coding and long-running tasks

    • More messages and web searches
    • Faster responses
    • All-day coding in CLI
    • IDE or web
    • Spreadsheets and slides
    • Better image generation and editing
    • $15 per month in API credits
    • Up to 15GB storage
    • Chat and email support

  • Team

    $24.99/user/mo

    Shared workspace with admin controls

    • Higher limits than Pro
    • Faster responses
    • Up to 30GB storage per user
    • Domain name verification
    • Data export

  • Enterprise

    Custom/custom

    Private deployments with custom models, UI and tools

    • Custom models
    • Custom agents
    • Custom workflows
    • Audit logs
    • SAML SSO
    • White label
    • On-premises or private cloud deployment

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

Lumo
7.6overall
Mistral Vibe (formerly Le Chat)
8.4overall

Lumo leads in 0 categories and Mistral Vibe (formerly Le Chat) in 1.

  • Ease of Use

    Lumo
    8.5
    Mistral Vibe (formerly Le Chat)
    Not rated

  • Feature Depth

    Lumo
    7.0
    Mistral Vibe (formerly Le Chat)
    Not rated

  • Value for Money

    Mistral Vibe (formerly Le Chat) leads by 1.3
    Lumo
    7.5
    Mistral Vibe (formerly Le Chat)
    8.8

  • Performance & Speed

    Lumo
    7.2
    Mistral Vibe (formerly Le Chat)
    Not rated

  • Documentation & Support

    Lumo
    7.8
    Mistral Vibe (formerly Le Chat)
    Not rated

  • Multilingual Proficiency

    Lumo
    Not rated
    Mistral Vibe (formerly Le Chat)
    8.8

  • Coding & Agents

    Lumo
    Not rated
    Mistral Vibe (formerly Le Chat)
    8.2

  • Reasoning & Logic

    Lumo
    Not rated
    Mistral Vibe (formerly Le Chat)
    8.3

  • Integrations & Connectors

    Lumo
    Not rated
    Mistral Vibe (formerly Le Chat)
    8.0

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

Lumo

Pros

  • 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.

Cons

  • 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)

Pros

  • 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

Cons

  • 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

Platforms

  • Web
    Lumo
    Supported
    Mistral Vibe (formerly Le Chat)
    Supported
  • Windows
    Lumo
    Not supported
    Mistral Vibe (formerly Le Chat)
    Not supported
  • macOS
    Lumo
    Not supported
    Mistral Vibe (formerly Le Chat)
    Not supported
  • iOS
    Lumo
    Supported
    Mistral Vibe (formerly Le Chat)
    Supported
  • Android
    Lumo
    Supported
    Mistral Vibe (formerly Le Chat)
    Supported
  • API
    Lumo
    Not supported
    Mistral Vibe (formerly Le Chat)
    Supported
  • Browser Extension
    Lumo
    Not supported
    Mistral Vibe (formerly Le Chat)
    Not supported
  • CLI
    Lumo
    Not supported
    Mistral Vibe (formerly Le Chat)
    Supported
  • VS Code Extension
    Lumo
    Not supported
    Mistral Vibe (formerly Le Chat)
    Supported
  • JetBrains Plugin
    Lumo
    Not supported
    Mistral Vibe (formerly Le Chat)
    Supported

Integrations

Lumo

1 integration
  • Proton Drive

Mistral Vibe (formerly Le Chat)

8 integrations
  • Slack
  • GitHub
  • Jira
  • Notion
  • Linear
  • Google Drive
  • Email and calendar
  • MCP servers

Company

  • Company
    Lumo
    Proton AG
    Mistral Vibe (formerly Le Chat)
    Mistral AI
  • Founded
    Lumo
    2014
    Mistral Vibe (formerly Le Chat)
    2023
  • Headquarters
    Lumo
    Geneva, Switzerland
    Mistral Vibe (formerly Le Chat)
    Paris, France
  • Listing
    Lumo
    Claimed
    Mistral Vibe (formerly Le Chat)
    Claimed

Frequently asked questions

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.