Mezzi vs PortfolioPilot: Which Is Better in 2026?

Prices checked October 2026. A price marked (Oct 2026) was read on the vendor's own pricing page; others are described without a number because we could not verify one.

Aggregates your accounts and layers AI insights with a tax-aware lens. Best for a consolidated view across holdings.

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 practice, Mezzi’s AI aggregates accounts + tax-aware insights. It is an AI investing app that connects the brokerage you already use, best suited to aggregated wealth tracking with AI. On connecting an account: yes. On execution: read. Cost: subscription.

One honest limitation: Tracking-and-insight focused rather than thesis-driven basket building.

Connects your accounts and gives AI-generated portfolio recommendations and risk analysis. Best for a second opinion on an existing portfolio.

How it works: You link your investment accounts and PortfolioPilot analyzes the whole picture, scoring risk, fees, and diversification and generating specific, ranked recommendations, including held-away accounts and alternative assets. You review the advice and a projected impact, then place any trades yourself at your own broker. Higher tiers add more back-and-forth AI interaction.

In practice, PortfolioPilot’s AI analyzes accounts and advises. It is an AI investing app that connects the brokerage you already use, best suited to a second opinion on an existing portfolio. On connecting an account: yes. On execution: advice only; it cannot change your investments. Cost: free; Gold $20, Platinum $49, Pro $99 a month billed yearly (Oct 2026).

One honest limitation: Advice-and-analysis focused; it cannot change your investments, so every trade is placed by you at your broker.

The core difference is category. Mezzi focuses on aggregated wealth tracking with AI (aggregates accounts + tax-aware insights), and PortfolioPilot on a second opinion on an existing portfolio (analyzes accounts and advises). On broker connection they differ too: Mezzi is “Yes” versus PortfolioPilot at “Yes”. That shapes everything downstream: how personal the answers are, where trades settle, and how much control you keep over individual positions.

Every tool gives something up for what it does well. Here is the honest give-and-take on each, so you can weigh the specific strengths against the limitations that come with them rather than judging on the headline category alone.

For AI investing tools, the distinction that matters most is whether the tool works from your actual, connected positions or reasons from something else: a separate account it manages for you, or the tickers and numbers you feed it. It decides how personal the answers can be, and where your money physically lives.

• Mezzi: reads your real connected holdings. Mezzi connects your real brokerage (Yes) and works from your actual positions, so its answers reflect what you genuinely own rather than a generic model.
• PortfolioPilot: reads your real connected holdings. PortfolioPilot connects your real brokerage (Yes) and works from your actual positions, so its answers reflect what you genuinely own rather than a generic model.

On this specific question the two land on the same side, so the deciding factors between them are elsewhere: category, cost, and who each is built for. This holdings-aware angle is the one Walnut is built around: it connects the brokerage you already use and reasons from your live positions, read-only by default, with any trades left for you to approve.

Each one wins a different job, so the answer is committed per job rather than overall.

• Choose Mezzi if you want aggregated wealth tracking with AI. Its AI aggregates accounts + tax-aware insights, and it costs subscription. It is built for multi-account investors who want tax-aware tracking and insights consolidated in one place. Keep in mind: tracking-and-insight focused rather than thesis-driven basket building.
• Choose PortfolioPilot if you want a second opinion on an existing portfolio. Its AI analyzes accounts and advises, and it costs free; Gold $20, Platinum $49, Pro $99 a month billed yearly (Oct 2026). It is built for investors who want an AI second opinion and a risk check across everything they own. Keep in mind: advice-and-analysis focused; it cannot change your investments, so every trade is placed by you at your broker.
• Choose Walnut if you want a keep, trim or exit read on the stocks you already own, and placing the trades you approve. It is an AI investing app that connects the broker you already use, and it costs free; Walnut Unlimited $9.99/mo on the web; no fee on assets.

Because both sit in the same category, the choice comes down to the finer details above rather than a fundamental difference in approach.

Cost is easy to misread when two tools charge in different shapes, so compare the model, not just the number. Mezzi: subscription. PortfolioPilot: free; Gold $20, Platinum $49, Pro $99 a month billed yearly (Oct 2026). A percentage-of-assets fee scales with your balance, a flat subscription does not, and a “free” tier usually earns elsewhere (on cash, order flow, or premium upgrades), so the cheapest headline is not always the cheapest outcome for your situation.

Prices checked October 2026. Pricing and tiers change, so confirm the current numbers on each provider’s own site before you decide.

Walnut is an AI investing app, and it is the pick for a keep, trim or exit read on the stocks you already own, and placing the trades you approve (free; Walnut Unlimited $9.99/mo on the web; no fee on assets). It connects the brokerage you already use, read-only by default, gives each holding a keep, trim or exit read against the S&P 500, flags any position above a quarter of the portfolio, and places the trades you approve. You use it through its own assistant, or inside Claude or ChatGPT. See Walnut vs Mezzi and Walnut vs PortfolioPilot.