74
Stack Score
Best for
Brave browser users who want a privacy-first AI assistant built into the sidebar without sending queries to Google or Microsoft.
At a glance
- Pricing
- freemiumfrom $15/mo
- Setup time
- Instant
- Learning curve
- easy
- Last verified
- 5/19/2026
What we love
- ✓Privacy model is genuinely different from Copilot or Gemini
- ✓No login or account needed for basic use
- ✓Bring-your-own-Ollama makes fully local AI possible
Where it falls short
- −Requires Brave browser — no Chrome or Firefox version
- −Premium models limited compared to dedicated chat apps
- −Smaller ecosystem of extensions vs Chrome
Pricing
✓ Pricing verified Jun 21, 20262 tiers
Free
$0
monthly
- ✓Built into Brave browser
- ✓Chat with any tab
- ✓No account required
- ✓Access to Mixtral, Claude, Llama models
- ✓Standard usage limits
Premium
Contact sales
subscription
- ✓Higher usage limits
- ✓Access to more models
- ✓Faster responses
- ✓Premium account verification
- ✓Maintains privacy and unlinkability
Why we picked it
Useful if you already use Brave. Less feature-rich than Perplexity but better privacy story.
Overview
AI assistant built into the Brave browser. Uses Mistral / Claude / open models. No data retention by default.
Key features
- ●AI assistant built into Brave browser sidebar
- ●Summarizes web pages, YouTube videos, and PDFs
- ●Choice of models — Mixtral, Llama, Claude (paid), GPT
- ●No account required for free tier
- ●No conversation history stored on Brave servers
- ●Works offline-ish with local Ollama support
Best use cases
Page summarization
Read a long article or research paper, hit the Leo sidebar, get the gist without leaving the page.
Private AI chat
Ask AI questions without your queries feeding into model training or ad profiles.
Local-only AI
Power users running Ollama locally can use Leo as a UI for fully offline AI.
Integrations
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