roZit

SWE | 23

[roZit @rozziitt]

Claude Opus should NOT be your default model

I keep seeing AI engineers and vibe coders saying:
"Just use Opus for everything"

I highly disagree

Opus is amazing when you need:
Deep reasoning
Complex debugging
Architecture decisions
High-stakes problems
Research into things you don't fully understand

That's exactly what it's built for
But once I understand the system...
Once I know the trade-offs...
Once I know what needs to be built...

I switch to Sonnet

Why?

Because at that point I'm not paying for intelligence

I'm paying for execution

One thing many vibe coders overlook is token consumption

It's not just about how many prompts you send

Different models generate different amounts of output and reasoning

A simple example:
Sonnet usually gets to the point faster
Sonnet is more concise
Sonnet lets you iterate quickly

Meanwhile:
Opus explores more possibilities
Opus adds more context
Opus generates longer responses

Which means the exact same workflow can consume significantly more tokens

Think of it this way:
Opus = A senior engineer doing a deep design review
Sonnet = A senior engineer helping you ship features all day

Both are valuable

But you don't schedule a full architecture review every time you need to change a button color

My rule:
Opus for unknown problems
Sonnet for known problems
Opus when complexity appears again

Using Opus for every prompt is like running a production Kubernetes cluster to host a static HTML page

The smartest model isn't always the best model

The best model is the one that gives you the right balance of:
Quality
Speed
Cost
Token efficiency

Most people optimize for model IQ

The best engineers optimize for throughput

[roZit @rozziitt]

Interviewer: "How do you code with AI?"

Me:
• Opus for coding
• Sonnet for research

Interviewer:
"Yeah, same. I haven't written code since AI went mainstream."

5 minutes later:

"Can you reverse a string in JavaScript and explain it line by line"

[roZit @rozziitt]

@snorlaxlr 10 Rs ki pepsi, mera bhai sexy

[roZit @rozziitt]

@akshaymarch7 Why would anyone care about that?
They only care whether you can build and ship

[roZit @rozziitt]

@igoytc @chirag Are you a vibe coder?

[roZit @rozziitt]

Interviewer: "How do you code with AI?"

Me:
• Opus for coding
• Sonnet for research

Interviewer:
"Yeah, same. I haven't written code since AI went mainstream."

5 minutes later:

"Can you reverse a string in JavaScript and explain it line by line"

[roZit @rozziitt]

@ayushi_heree Not gonna repeat it they'll probably ban me again

[roZit @rozziitt]

First Time btw

[roZit @rozziitt]

@ayushi_heree just post something unhinged

[roZit @rozziitt]

@pushkarscripts happy birthday man!

[roZit @rozziitt]

@fbwalker4 Yes totally agree with you

[roZit @rozziitt]

@zmachfj Did you forget about tokens if I plan the implementation and disscus with opus then it's not the good choice

[roZit @rozziitt]

@chirag I use Sonnet for planning because, when I'm starting a project, I don't want to waste my tokens on planning instead of implementation

[roZit @rozziitt]

@yamikoai its simple
function reverseString(str) {
let reversed = "";

for (let i = str.length - 1; i >= 0; i--) {
reversed += str[i];
}

return reversed;
}

console.log(reverseString("hello"));

[roZit @rozziitt]

@akshaymarch7 The problem isn't that students don't have enough skills

The problem is that job maket doesn't have enough jobs for freshers

[roZit @rozziitt]

@snorlaxlr Shinchan ig

[roZit @rozziitt]

@ayushi_heree It was my decision and I can't see my wife in pain so I choose to be pregnant not her and I love my wife

[roZit @rozziitt]

@ayushi_heree Yeah my babies are good and healthy too

[roZit @rozziitt]

@akshaymarch7 Yeah I have started learning PHP hope I will find job as a PHP developer soon