Magnifi vs Merrill Guided Investing: Which Is Better in 2026?

Figures and features are point-in-time and change; treat the table as a starting map, not a live quote.

A conversational AI investing assistant you can ask natural-language questions about funds and holdings, with account-connection features. Best for research and discovery in plain English.

How it works: Magnifi is built around a chat box: you ask plain-English questions like "what are low-cost clean-energy ETFs?" or "how diversified am I?" and it surfaces investments, side-by-side comparisons, and observations. You can link accounts so its answers reflect what you actually hold, and it points you toward funds and stocks to consider.

In practice, Magnifi’s AI conversational fund/stock research. It falls under ai stock research and scoring, which makes it best suited to research and discovery in plain english. On connecting an account it is “Partial”, and on execution it is “Read / discovery”. It is priced as subscription.

One honest limitation: Skews toward fund discovery rather than managing a concentrated stock portfolio.

Merrill's automated investing service, built on Bank of America research, with an optional tier that adds an advisor.

How it works: A questionnaire sets a goal and risk level, and Merrill invests in model portfolios built by its investment office, rebalancing automatically. A higher-priced tier adds access to a financial advisor. Preferred Rewards status at Bank of America can reduce the fee, which is the main reason existing customers choose it.

In practice, Merrill Guided Investing’s AI automates a research-driven model portfolio. It falls under hands-off automated investing (robo-advisors), which makes it best suited to bank of america customers who want managed portfolios in the same app. On connecting an account it is “No (holds your money at Merrill)”, and on execution it is “Automated”. It is priced as percentage of assets, higher with an advisor (verify current).

One honest limitation: Priced above the cheapest automated services, and the portfolios lean on Merrill's own research and funds.

The core difference is category. Magnifi focuses on research and discovery in plain english (conversational fund/stock research), and Merrill Guided Investing on bank of america customers who want managed portfolios in the same app (automates a research-driven model portfolio). On broker connection they differ too: Magnifi is “Partial” versus Merrill Guided Investing at “No (holds your money at Merrill)”. 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.

• Magnifi: partial account connection. Magnifi offers some account-connection features, but it leans toward research and discovery rather than a full, continuous read of your real positions.
• Merrill Guided Investing: manages a separate account it holds. Merrill Guided Investing does not read the brokerage you already use. It opens and holds a new account, then invests the money you move into it, so its view is limited to what sits inside Merrill Guided Investing.

This is where they diverge most. One works from your real, connected account while the other does not, so if you want an assistant grounded in the exact positions you already hold, that gap is the thing to weigh first. 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.

There is no universal winner here; the right pick depends on the job you are hiring the tool for. Match the category to your intent rather than chasing a single “best.”

• Choose Magnifi if you want research and discovery in plain english. Its AI conversational fund/stock research, it is priced as subscription, and it fits ai stock research and scoring. It is built for investors who want to research and discover funds by chatting in plain English. Keep in mind that skews toward fund discovery rather than managing a concentrated stock portfolio.
• Choose Merrill Guided Investing if you want bank of america customers who want managed portfolios in the same app. Its AI automates a research-driven model portfolio, it is priced as percentage of assets, higher with an advisor (verify current), and it fits hands-off automated investing (robo-advisors). It is built for an existing Bank of America customer whose rewards tier makes the pricing competitive and who values everything in one app. Keep in mind that priced above the cheapest automated services, and the portfolios lean on merrill's own research and funds.

Because they sit in different categories, this is not strictly either-or: some investors use one for research and discovery in plain english and the other for bank of america customers who want managed portfolios in the same app, and just watch for overlapping costs.

Cost is easy to misread when two tools charge in different shapes, so compare the model, not just the number. Magnifi is priced as subscription, while Merrill Guided Investing is priced as percentage of assets, higher with an advisor (verify current). 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.

Pricing and tiers change often. Confirm the current numbers on each provider’s own site before you decide; the framing above is point-in-time.

If neither quite fits, Walnut sits in a third category: chat-driven management of your own brokerage. It connects the brokerage you already use through SnapTrade, lets you analyze and manage it by talking through Claude or ChatGPT, build thematic portfolios around a thesis, and place trades you approve. Read-only by default. See Walnut vs Magnifi and Walnut vs Merrill Guided Investing. Walnut is not an investment adviser.