Walnut vs SoFi: Which Should You Use? (2026)
Last updated June 2026
Short answer
SoFi and Walnut solve different problems. SoFi is best for beginners in one money app; it fully automated, hands-off investing where the platform builds and manages a diversified portfolio for you. Walnut connects your own brokerage and lets you manage it by chatting through Claude or ChatGPT, with thematic baskets and trades you approve. Choose SoFi if you want fully automated, hands-off investing where the platform builds and manages a diversified portfolio for you; choose Walnut if you want keeping your own brokerage and staying in control of what you hold, with an AI you talk to.
Both get called “AI investing tools,” but they are not substitutes. Here is what each one actually does, whether it touches your real brokerage, what it costs, and when each is the better choice.
What SoFi is
Free automated investing plus an AI financial coach inside an all-in-one money app. Best for beginners already in the SoFi ecosystem.
Best for: Beginners in one money app. Cost: Free automated investing. Limitation: Lighter on deep research and customization.
What Walnut is
Connects your real brokerage through SnapTrade and lets you analyze and manage it by talking through Claude or ChatGPT, build thematic baskets around a thesis, and place trades back through your own broker. Read-only by default, with trading you approve. Walnut is not an investment adviser.
In short, SoFi holds your money and invests it for you, whereas Walnut sits on top of the broker you already use and leaves you in control.
SoFi vs Walnut at a glance
| SoFi | Walnut | |
|---|---|---|
| Best for | Beginners in one money app | Talking to your own brokerage with AI |
| What the AI does | Automated investing + AI coach | Conversational + thematic baskets + trade |
| Connects your broker | No (holds your money) | Yes (SnapTrade) |
| Trades | Automated | Read + you approve |
| Cost | Free automated investing | Free tier |
When SoFi is the better choice
If you mainly want fully automated, hands-off investing where the platform builds and manages a diversified portfolio for you, SoFi is the more natural fit. Free automated investing plus an AI financial coach inside an all-in-one money app. Best for beginners already in the SoFi ecosystem. Its main trade-off is that lighter on deep research and customization.
When Walnut is the better choice
If you want to keep the brokerage you already use and add an AI layer you actually talk to, Walnut fits. It is read-only by default, every trade needs your approval, and you can build thematic baskets and ask about your real holdings through Claude or ChatGPT. Walnut is not an investment adviser. From a connected account you can dig into a specific stock, an ETF, or a theme, and see how connecting a broker to an AI assistant works.
Try Walnut on top of your broker
Connect any major US broker in a few clicks. Walnut adds AI research, basket-building, and live portfolio answers, without changing where your money lives.
FAQ
Is Walnut better than SoFi?
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Neither is strictly better; they are built for different jobs. SoFi is best for beginners in one money app. Walnut is best for talking to your own brokerage with AI: it connects the broker you already use, lets you manage it by chatting through Claude or ChatGPT, and builds thematic baskets. Choose based on which job you are hiring the tool for.
Does SoFi connect to my existing brokerage?
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SoFi: No (holds your money). Walnut connects most US brokers through the regulated aggregator SnapTrade, stays read-only by default, and requires your approval for every trade.
Can I use SoFi with ChatGPT or Claude?
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SoFi holds your money and invests it for you, whereas Walnut sits on top of the broker you already use and leaves you in control. Walnut is designed to work through Claude or ChatGPT (or its built-in assistant) against your real, connected portfolio.
Walnut vs SoFi: which costs less?
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SoFi: Free automated investing. Walnut: Free tier. Pricing and features change, so verify current details on each provider's site before deciding.
Walnut is informational and is not an investment adviser. SoFi's features and pricing change; verify current details on each provider's site before deciding.