Anonymous
Post 01/26/2026 22:30     Subject: How to Model Financial Planning in ChatGPT?
I'm the OP and I'm a big proponent of Bogleheds. They just aren't into using ChatGPT, hence the question.

For calculators, I primarily use FireCalc and FiCalc. Our FA also runs scenarios for us. We used ChatGPT for top dividend producers using certain parameter. Nothing we are ready to act on, but I'm all about being proactive before wanting/needing something.
Anonymous
Post 01/26/2026 22:22     Subject: How to Model Financial Planning in ChatGPT?
Anonymous wrote:
Anonymous wrote:I put in my account balances and ask what they will grow to in 10, 15, and 20 years, assuming a 4%, 5%, 6% or 7% real rate of return. Then I ask how much they will grow if I add specific contributions each year, like I use $25k, $50k, $75k, and $100k. Then I ask what I can withdraw annually using a 4% withdrawal rate starting in 10 years or 15 years under each scenario.


https://smartasset.com/investing/investment-calculator

You're welcome


?? This is the most basic call.
Anonymous
Post 01/26/2026 17:33     Subject: How to Model Financial Planning in ChatGPT?
Anonymous wrote:
Anonymous wrote:I put in my account balances and ask what they will grow to in 10, 15, and 20 years, assuming a 4%, 5%, 6% or 7% real rate of return. Then I ask how much they will grow if I add specific contributions each year, like I use $25k, $50k, $75k, and $100k. Then I ask what I can withdraw annually using a 4% withdrawal rate starting in 10 years or 15 years under each scenario.


What if the real rate of return is zero?


So far from reality over a long period as to be stupid.
Anonymous
Post 01/26/2026 13:52     Subject: How to Model Financial Planning in ChatGPT?
Anonymous wrote:I put in my account balances and ask what they will grow to in 10, 15, and 20 years, assuming a 4%, 5%, 6% or 7% real rate of return. Then I ask how much they will grow if I add specific contributions each year, like I use $25k, $50k, $75k, and $100k. Then I ask what I can withdraw annually using a 4% withdrawal rate starting in 10 years or 15 years under each scenario.


https://smartasset.com/investing/investment-calculator

You're welcome
Anonymous
Post 01/26/2026 12:55     Subject: How to Model Financial Planning in ChatGPT?
I can't wait for people to start posting that their agentic AI sold all of their stocks and bought memestonks because the LLMs training included Reddit and 4chan.
Anonymous
Post 01/25/2026 16:44     Subject: How to Model Financial Planning in ChatGPT?
ChatGPT is just pulling information from other websites and doing bad math and frequently making shit up.
Anonymous
Post 01/23/2026 22:37     Subject: How to Model Financial Planning in ChatGPT?
You're much better off perusing bogleheads and watching some financial planning videos on YouTube. There are just too many variables and investing is a very personal thing.