Cheap AI vs Premium AI Minimax 2 5 vs Opus Full Breakdown

Minimax M2.5 fails a basic logic test, while Opus almost never does — the price gap is 20x.

## The Car Wash Test The hosts ran a shared prompt across agents: "I need to clean my car. There's a car wash 50 meters away. Do I walk or do I drive?" Jeff, the agent on Minimax M2.5, said walk. Stark, on Opus, immediately answered drive and added the emoji. This is the same test the channel ran before, where earlier Minimax versions had answered walk as well — the M2.5 result is described as "a big improvement because if M2.1 says you got to walk there, what a dumbass."

## Why The Hosts Pick M2.5 Anyway The co-host is paying $5/day on Opus, and Minimax is roughly "20x more" expensive in comparison. His take: "I'll settle with cheap models because I'm not at that level where I can run a very sophisticated architecture. Let me break some things first." He calls M2.5 "really good for the grunt work." He has it set up on his own server, currently all on manual, with no cron jobs yet — "I'm scared. Yes. I want to be as cheap as possible."

## The 95% Promise Minimax's pitch is "95% the performance of Opus." The hosts note "5% can mean many different things — the 5% you got to walk to the watch." The Minimax coding plan is described as $20 for 300 requests every 5 hours, branded as all-inclusive so you "don't have to think about the price." The co-host says 2.1 "constantly messed up" and "constantly gaslit me," but M2.5 is "almost to a point where it's fully autonomous."

## The Opus Tradeoff On Opus: "It rarely f*s up, but when it f*s up, it f***s up really bad. You need to delete everything. You need to clear its entire memory to make it work." Worth it if "you're trying to build something you don't want that thing breaking, especially if it's to users."

## What's Next The channel plans to test Kimmy and GLM5 next, and is running multiple AIs in one chat to compare them head-to-head.

## Recommended Setup OpenClaw-style agents work best "for people that already had pre-existing systems." If you don't have a system or can't lay it out in "an architecture flow chart," the cheap models will struggle. Stay manual on M2.5 until you trust the outputs.