Why Try AI

Why Try AI

It Takes Two to Tango. Why You Should Use GPT-4o and o1 in Tandem.

Get the best of both worlds by using GPT-4o to write briefs for o1.

Daniel Nest's avatar
Daniel Nest
Jan 23, 2025
∙ Paid

Two weeks ago,

Latent Space
published this widely circulated article by Ben Hylak, which I encourage you to read in full:

Latent Space
o1 isn’t a chat model (and that’s the point)
swyx here: We’re proud to feature our first guest post of 2025! It has spawned great discussions on gdb, Ben, and Dan’s pages…
Read more
a year ago · 236 likes · 26 comments · Ben Hylak and swyx & Alessio

Ben is a self-proclaimed convert from an o1 skeptic to an o1 believer1. What it took was a simple mindset shift, captured in this quote of his:

“I was using o1 like a chat model — but o1 is not a chat model.”

After reading the article, I started digging into how o1 and similar reasoning models differ from traditional LLM-powered chatbots. Eventually, I’ve come to realize something: It makes a crapton of sense to use standard LLMs in tandem with reasoning models.

So follow me as I make the case for why and how you can use them together.

Note: While I focus on GPT-4o and o1, my findings and suggestions are largely applicable to other combinations of LLMs and reasoning models (e.g. DeepSeek-R1)

Forget what you know about prompting LLMs

Even though we can access the two via the same chat interface, reasoning models like o1 are different beasts compared to chat models like GPT-4o.

This mean…

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