What ChatGPT is genuinely good at for investors
Credit where due: ChatGPT (and Claude, and Perplexity) are excellent at financial education ("explain covered calls like I'm new"), summarizing public news, brainstorming questions to ask, and reasoning through frameworks. With web search, they can pull recent headlines. For learning, a $20 generalist subscription is money well spent, and nothing below argues otherwise.
The three walls every generalist hits with your money
Wall 1: it cannot see your portfolio. Every answer about "your" investments is generic, because it has no idea what you hold, at what basis, across which accounts. You are pasting screenshots into a text box and hoping.
Wall 2: it has no finance data surface. The public web does not include options flow, real-time tape across 28+ venues, insider filings as they land, STOCK Act disclosures, or a private-markets graph of 10.5M companies. Generalists answer from memory and headlines. Positions deserve primary sources.
Wall 3: it cannot act. The conversation ends with you doing all the work in your brokerage apps: sizing, placing, tracking. Advice without execution is a newsletter.
See it on your own portfolio: connect a broker and ask Tengu anything about your money.
Try Tengu freeChatGPT vs Tengu for investing, side by side
| ChatGPT Plus | Tengu Chat | |
|---|---|---|
| Price | $20/mo | $20/mo |
| Sees your real positions | No | Yes, live, across 25+ brokerages |
| Architecture | General model + web search | Proprietary multi-agent orchestration, finance-only |
| Data surface | Public web | 229 finance tools: filings, options flow, insiders, congress, macro, 10.5M private companies |
| Citations | Web links, sometimes | Primary-source citations on every claim |
| Executes trades | No | Yes: your approval, your own broker, risk gates on every order |
| Voice grounded in your portfolio | Voice, but no portfolio | Yes, Tengu Voice, same brain |
| Built for | Everything | Only your money |
The right answer is usually: both
Keep the generalist for the world; use the specialist for your money. They even compose: Tengu's API is Anthropic-compatible and MCP-native, so Claude, ChatGPT, or any agent you build can call Tengu's 229 tools, which means your generalist can borrow the specialist's eyes and hands. But when the question is "how is MY portfolio doing, what should change, and will you handle it?", that is not a generalist's question. That is the job of the AI portfolio manager: Tengu connects 25+ brokerages, including Robinhood, Schwab, Fidelity, Interactive Brokers, Coinbase, and Kraken, and executes the trades you approve through your own broker. Never custodial.