Mezzi Review (2026): Cost, Features, and Who It Suits
Last updated August 2026
Short answer
Aggregates your accounts and layers AI insights with a tax-aware lens. Best for a consolidated view across holdings. On cost, it is subscription, and on the question that decides most of the day-to-day experience, whether it works with the brokerage account you already have, the answer is: Yes. It suits multi-account investors who want tax-aware tracking and insights consolidated in one place. Where it falls short: Tracking-and-insight focused rather than thesis-driven basket building. This review is published by Walnut, which competes with Mezzi, and is written from public information rather than collected user ratings.
What Mezzi is and how it works
Mezzi aggregates your investment accounts into one view and layers AI insights over them with a tax-aware lens, flagging things like potential wash sales, fee drag, and unrealized-gain considerations across accounts. It is read-only: it tells you what it sees and what to consider, and you act at your broker.
In category terms it is chat-driven management of your own brokerage, and the AI component specifically aggregates accounts + tax-aware insights. That phrase is worth reading literally: across this market, "AI" covers everything from a rebalancing rule to a conversational assistant, and the products are not interchangeable just because they share the label.
What Mezzi does well
- Cross-account, tax-aware insights in one consolidated view
- Surfaces wash-sale risks and potential fee savings
- A single net-worth-style picture across holdings
These are real advantages, and if they describe what you want, Mezzi is a reasonable choice regardless of what any competitor including us has to say about it.
Where Mezzi falls short
Tracking-and-insight focused rather than thesis-driven basket building.
- Tracking-and-insight focused: no trading and no thesis-driven baskets
- Delivered as a paid subscription (verify current pricing)
What Mezzi costs
Subscription. Because it is not charged as a percentage of assets, the cost does not scale with your balance. That makes it proportionally cheaper as an account grows and relatively expensive on a small one, which is the opposite of how a robo-advisor fee behaves.
Fees change. The figure above is a guide rather than a quote, and the Mezzi pricing breakdown goes into what else you pay on top. Confirm current pricing on Mezzi's own site.
How Mezzi compares with the alternatives
| Product | Cost | Connects your broker? | Best for |
|---|---|---|---|
| Mezzi | Subscription | Yes | Aggregated wealth tracking with AI |
| PortfolioPilot | Free + premium | Yes | A second opinion on an existing portfolio |
| Origin | Subscription | Yes | Financial planning plus investing |
Within chat-driven management of your own brokerage, the products differ less on capability than the marketing suggests. Cost and whether your money has to move are the two variables that actually change your experience.
Where Walnut fits, and where it does not
To be upfront, since this is our site: the one factual difference worth knowing is that Mezzi and Walnut both work with an account you already hold, so the difference is what happens next: Walnut answers questions about your real positions through Claude or ChatGPT rather than inside its own app. Walnut is free, with no paid plan and no fee on assets.
Where Walnut is the wrong choice: it will not manage money for you, it is not a registered investment adviser, it does no tax or estate planning, and it needs a brokerage account you already hold. If what you want is delegation rather than analysis, a robo-advisor or a human planner is the better answer and Mezzi may well be it. The full self-assessment is on the Walnut review.
The bottom line on Mezzi
Mezzi: Aggregates your accounts and layers AI insights with a tax-aware lens. Best for a consolidated view across holdings, at subscription. It fits multi-account investors who want tax-aware tracking and insights consolidated in one place. The trade-off to accept: Tracking-and-insight focused rather than thesis-driven basket building. If that trade-off is one you are happy with, it is a sound choice.
FAQ
What is Mezzi?
Aggregates your accounts and layers AI insights with a tax-aware lens. Best for a consolidated view across holdings. It sits in the chat-driven management of your own brokerage category, costs subscription, and is best suited to aggregated wealth tracking with AI.
How much does Mezzi cost?
Subscription. Because that is not a percentage of assets, the cost does not scale with your balance the way a robo-advisor fee does, which makes it cheaper proportionally as the account grows and more expensive on a small one. Verify current pricing on Mezzi's own site.
Does Mezzi connect to my existing brokerage account?
Yes. This is the distinction that decides most of the practical experience: a product that holds your money manages it inside its own account, while one that connects to your broker leaves your assets where they are. Neither is better in the abstract, but moving money has tax consequences in a taxable account that connecting does not.
What does the AI in Mezzi actually do?
Aggregates accounts + tax-aware insights. That is worth reading literally rather than as marketing, because "AI" spans everything from an automated rebalancing rule to a conversational assistant that reads your holdings. What matters is whether it does the specific job you want done.
What is the biggest drawback of Mezzi?
Tracking-and-insight focused rather than thesis-driven basket building. Beyond that: tracking-and-insight focused: no trading and no thesis-driven baskets.
Who is Mezzi best for?
It fits multi-account investors who want tax-aware tracking and insights consolidated in one place. If that does not describe you, the mismatch will show up quickly, because Mezzi is built around that use case rather than trying to serve everyone.
Mezzi vs PortfolioPilot: which is better?
They compete in the same category, so the deciding factors are cost and model rather than capability. Mezzi costs Subscription and works with an account you already have; PortfolioPilot costs Free + premium. PortfolioPilot leads on a second opinion on an existing portfolio. Compare those before assuming they are interchangeable.
Is this an independent review of Mezzi?
No. Walnut publishes it and competes with Mezzi, so treat it as an informed assessment rather than a neutral one. It is built from public information about the product and carries no star rating, because we have not surveyed Mezzi's customers. The strengths listed above are genuine, and the section on where Walnut fits is limited to one factual difference rather than a pitch.
Walnut publishes this page and competes with Mezzi, so read it as an informed assessment rather than an independent one. It is built from publicly available information about the product, not from collected user reviews, and it carries no star rating because we have not surveyed Mezzi's customers. Pricing, features and availability change; verify current details on Mezzi's own site before deciding. Walnut is informational and is not an investment adviser. Nothing here is a recommendation to buy, sell, or hold any security or to use any particular product.