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A data-grounded look at how these two ai chatbots & assistants tools stack up — to help you pick the right ai chatbots & assistants tool in 2026.
Quick verdict
There's barely a point between Brave Leo and Duck.ai on our Editor Score. Pick Brave Leo if you want built into the Brave browser sidebar; choose Duck.ai for access to multiple models (GPT, Claude, Llama, Mistral). On pricing, each has a free or freemium plan, so cost isn't the deciding factor here.
| Pricing | Freemium | Free |
| Free tier | ||
| Best for | built into the Brave browser sidebar | access to multiple models (GPT, Claude, Llama, Mistral) |
Privacy-focused AI assistant built into Brave browser
Private, anonymous AI chat with multiple models free
Choose Brave Leo if…
Choose Duck.ai if…
It comes down to fit, not a single winner: Brave Leo leans into built into the Brave browser sidebar, while Duck.ai is built for access to multiple models (GPT, Claude, Llama, Mistral). Weigh features and pricing for your workflow. Both have a free or freemium tier, so spin up each and keep the one that clicks.
Neither is universally better — it depends on your budget and which features matter most. The side-by-side breakdown above shows where each one wins.
Brave Leo (freemium) is best for built into the Brave browser sidebar, while Duck.ai (free) is best for access to multiple models (GPT, Claude, Llama, Mistral). See the full feature and pricing comparison above.
Both have paid plans — pricing depends on your usage tier. Open each tool's review for current prices, and watch for free trials.
Brave Leo is usually the easier starting point thanks to a lower barrier to entry. Beginners should favour a free tier and a simple interface over raw power.
Other head-to-heads in the same category.
AI Tools Comparison Analyst
Olivia runs side-by-side comparisons and benchmarks, digging into pricing, features, and real-world performance so readers can choose between competing AI tools with confidence.
Senior AI Tools Reviewer
Daniel reviews AI tools the slow way — by actually using them on real projects. His reviews cover what works, what breaks, and who each tool is genuinely a good fit for.
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Last updated August 2026. Comparisons are ranked by our Editor Score (features, value and pricing, blended with verified user reviews where a tool has them) — see our methodology.