OpenAI just put not one, not two, but

three brand new models into their AI

coding tool, Codeex. And this totally

changes how you're going to use Codeex.

In this video, I'm going to go through

all three new Chat GPT 5.1 models they

put inside Codeex. I'm going to show you

how to use them, when you should use

them, and a new workflow you can deploy

in Codeex today that will get the most

out of these models. I'll also let you

know what I think about Codeex versus

Clawude Code and which you should be

using. Whether you've never used Codeex

before in your life or you are a Codeex

master, I promise if you stick with me

until the end, you'll get a ton out of

this video. Let's get into it. So, just

announced moments ago, we've upgraded

all our models and codecs. You can now

get three new models. chat GBT 5.1, the

model we just talked about, 5.1 Codeex,

which is their version of 5.1 that is

built for coding, and GPT 5.1 Codeex

Mini, which is built for coding, but

works a lot faster. These are three

brand new models that have three very

distinct purposes for coding. I'm going

to go over the differences between all

three, but you have very specific use

cases you want to do with each. Here's

my breakdown of all three before we jump

into codeex and I'll build an app live

with them showing you when you should

use each. So you have your regular 5.1

which you've been able to use inside

chat GPT for a day now. You use this for

planning mode and I agree based on all

my testing I've been doing here. 5.1 is

the best creative partner and planner

I've ever used in my entire life. I've

been using it basically for the last 24

hours straight and it has completely

retoled how I do my business and all the

products I'm coming out with. It is a

planning master and this is going to be

one of the best plan modes you can have.

You also have 5.1 codec. So kind of

their average normal codec model has

been upgraded. It's 5.1 but it is built

for programming. Here are the evals for

5.1 when it comes to coding. It is very

good and much better than GPT5 when it

comes to the SWE bench. And then it

looks like a step up in almost every

other benchmark they have. So to me,

this is much more than just a 0.1

upgrade as I said in my video yesterday.

So looks like it's excellent at

planning. It looks like it is much

better at coding. And then you have 5.1

Codeex Mini, which is the model you want

to use for smaller coding tasks. So use

5.1 codecs for your oneshot twohour long

programming task. You want to just hand

off and codeex takes care of it. You

want to use 5.1 codecs mini for more of

your debugging, making small styling

changes, making small tiny tweaks. It

will move much faster. The big thing

they changed in 5.1, which you'll

experience in these three models, is for

these smaller tasks, 5.1 moves a lot

faster and uses less tokens. That's what

you'll see in 5.1 Codeex Mini. For the

larger task, it actually uses more

tokens and takes longer, which you might

be thinking, what? They're going to slow

it down and make it last longer. But

here's the thing, you're saving time in

the long run because it's going to have

a much higher chance of doing things the

right way the first time around. So

overall, you're saving money, you're

saving time. These are all great updates

to these three models. But how do you

use them in practicality? We talked

about the benchmarks and the handwaving,

the explanations, but how do you use

these three models in practicality?

Let's jump into Codeex and I'll show you

exactly how to do it. So, I am inside

Visual Studio Code. This is my favorite

way to use Codeex. If you go into Visual

Studio Code, completely free, go into

the extensions, download the Codeex

extension. Click on it. Once it's

installed, you are inside Codeex. I'm

going to show you a few things here.

We're going to build an app together.

And the reason we're going to build this

app together is one, so I can show you

the three different models and how to

use them, but two, also show you the new

workflow, right? There's a lot of cool

things in codeex, including the cloud

agents. I'm going to show you how to use

those and how it fits into this brand

new workflow with these three new

models. So today, we're going to build a

productivity app. I want a full suite

productivity app with canban

organization, with a to-do list, with a

calendar. We're going to build our

entire own productivity suite. So we are

inside codeex. Few things we want to do

here that are important. We want to make

sure at first here we are running

locally. So that is good to go. Then we

have the modes. We're going to go into

chat mode. This is where I do the

planning inside codeex is in chat mode.

So it doesn't change any code. I'm in

chat. We're going to select the model

for plan mode. We are going to select

GPT 5.1. As we talked about on the last

screen, just plain old 5.1 without

codecs is the best planning and

creativity model I have ever come across

in my life. So, we are going to select

that. As for reasoning level, if you're

doing a super serious huge monster app,

you might want to do high. For this one,

I'm going to do medium. This is not the

craziest, most in-depth app, so I'm

doing medium reasoning, but you'll

change this based on what you're

building out. If you want to build along

with me, which I think is the best way

to experience these videos I make, I'm

going to put the prompt for this down

below. I want to build a full suite

productivity app. I want it to have a

cananband board, to-do list, and

calendar. I want to use Nex.js and

Tailwind V3. Those are the two

technologies we're going to use to build

this. Very popular. Codeex is great at

using them. I want it to look clean with

a minimal design that doesn't look like

an AI made it. Use local storage for

now. We are on the plan mode, the chat

mode. I'm going to hit enter. Please

make a plan for this. And now I'm going

to hit enter on this. Again, we're on

the plan mode, which is the chat mode,

and we're using 5.1. You really want to

use 5.1 no codecs when it comes to the

planning because it is so good at

creative thinking and creative design.

Look at that. And it moves real fast,

too. That's great. So, let's see what we

got here in the plan. In a second, we'll

go into when to use the codeex models.

Here's a solid practical plan. Scaffold

the app. Install and configure Tailwind.

That's good. Define a small token set.

So, colors, one to two colors, neutral

grays. I like that. This shouldn't look

like AI. None of that blue and purple

gradient. Establish a typography. That's

good. That's interesting. I don't think

I've had many AIs focus on typography

before. So, that's really cool. These

are the type of novel ideas that I've

seen with 5.1 the last couple days,

which have been amazing. App structure.

So, it looks like a dashboard. I like

that. And has the data model and all

that. Let's do this. I like it. If you'd

like, next up, I can turn this plan into

a concrete project structure and then

start implementing it. Let's do this.

I'm going to go straight into agent full

access. So agent mode is where it has

you accept step by step. Agent full

access is it just goes hog wild and

builds what it wants. I trust 5.1 based

on what I've seen so far. We are also

going to switch to 5.1 codeex which is

their again coding model built for

larger tasks. We're having it build this

entire V1 out. So I'm switching to 5.1

codeex and I'm going to say this plan

looks great. Please build it out. And

I'm going to hit enter and it is going

to get to work for us. In a second after

this builds out, we're going to start

making some small tweaks and edits. I'm

going to show you how we're going to use

5.1 Codeex Mini for that, which is much

better suited for those small tweaks.

It'll save you money and it'll save you

tokens. One great thing about this is

this is more the $20 version of Chat GPT

gives you a decent chunk here of usage

for codeex. They also have a pay as you

go plan for codec which works really

good as well. So the pricing model on

codeex is very nice. I know there's a

lot of complaints uh with other tools

when it comes to pricing models. Codeex

very good pricing model. One of the

other strengths as this builds out as

well is going to be the cloud agents and

I'm going to show you a good workflow

for the cloud agents once this builds

out too. So stick around for that. And

as it's building, if you learned

anything at all so far, make sure to

leave a like. It means the world if you

leave a like, subscribe if you haven't

yet. We have over the last couple weeks

become the number one vibe coding

channel on all of YouTube. So, make sure

you subscribe and turn on notifications

because I live stream a few times a week

as well. All right, looks like it is all

done here. Let's give this a shot. This

was all one shot. Looks like it built

out all the files, all the components.

I'm going to do control till day. We're

going to do npm rundev. I'm going to hit

enter. Let's get this party. So, I run

3004 cuz I'm building 29 different apps

at the same time here. Let's see what

this looked like and then we'll get into

some cool editing and workflow and trick

stuff we can do here. And boom. Here we

go. This actually looks really nice. A

couple things I want to note. Yes, there

are some uh stylistic issues here when

it comes to uh like the shape of some of

these tasks. But I'll say one thing for

sure. This does not look like an AI app.

This does not look like an AI built this

app at all. There is not one hint of

blue or purple. There's not a single

gradient. It's just a clean, simple

aesthetic with pops of color. That is

actually wildly impressive. I know a lot

of people claim that I use a lot of

hyperbole, but this is the stone cold

truth. This might be the best oneshot UI

I've ever seen an AI make. And yes,

there are some broken things here, like

the numbers on the calendar or

something. Maybe if I expand the window,

it'll look better. But from just a

style, like a colors perspective, a

taste perspective, this might be the

best. Oh, there's some things with the

colors, white on white. I see this a lot

with AI, but outside that I like the

black and white. Okay, so let's get back

into this. Let's fix this is perfect. We

have some things to fix. Now, let's

switch to 5.1 codeex mini in order to

fix a lot of these smaller things. So,

we'll start with the calendar here,

right? So, I'll screenshot. This is

important. Whenever you have bugs,

issues, or things you want to fix,

especially on the UI side, make sure you

use screenshots. So, if you're on Mac,

shift, control, command 4, which copies

a portion of your screen and puts it on

your clipboard so that you can just go

in here and paste it. And then I'm going

to switch to 5.1 Codeex Mini, which is

great for those small little changes.

Watch how quick this goes. I'm going to

say, "Looks like the calendar is all

scrunched up. Please fix this so it

looks nice." And I'm going to hit enter.

and we're going to see how fast this is.

Should be significantly faster. That was

one of the big improvements with 5.1 as

well. The smaller models, the instant

model is significantly more faster than

it was before. So, let's see how fast it

could do this and if it could make it

look nicer in one shot. All right, that

took probably about 25 seconds to do.

Let's see how it did on those fixes.

Okay, let's pull this over and see what

we got here. Boom. Calendar looking a

lot nicer now. Now, instead of having

like weird letters all over the days,

they now have dots to indicate that

there's an event on that day. I like it.

It's all clean up here as well. The font

looks nice. The colors of the font look

nice. The headers and the subheaders

here look nice. This is really well

done. This was a really well done uh by

GPT5 Codeex and Codeex made to clean up

a lot of the issues here. Oh, I also

like little things like the day view

where it shows you the one event on the

day. That's nice. We went over the three

models and the kind of workflow behind

them. Let's also talk about the cloud

agents which is a feature that makes

codeex very very unique. Other tools

have cloud agents but what makes codecs

unique is the agents are actually

integrated into the IDE experience. With

the other tools like claude code for

instance you spin up agents on the web.

You have to go to a separate website to

spin them up. What's interesting about

codeex though is you have cloud agents

integrated directly into the ID. So I

can set up some tasks for the cloud

agents and set up some tasks locally

side by side all in the same environment

which is really really nice. So I'm

going to go into run in the cloud here.

I'm going to switch to the codeex cal

environment which is the GitHub

repository I put this code on. To use

the cloud agents you need to make sure

your code is on GitHub. If you never did

that before, go on github.com, sign up,

create a new repository, and then all

you literally have to do is tell Codex

commit this code to the new repository

and it will do that for you. Once you

have that on there, you can switch to

the running cloud environment with your

repository selected and we can start

spinning up tasks that agents will do in

the cloud. Now, the way I like to think

about this is I like to give the cloud

agent small tasks it can do on the side

while I do main tasks locally inside my

IDE. So, for instance, maybe I want to

say add a dark mode to the app. Since

we're on the cloud, I can just hit send

on this. And now we have a cloud agent

working on that small task for us. But

now we can actually spin up multiple

things here. So, I'm going to go back

while that cloud agent's getting

started. You can see it's starting to

work there. And I'm going to say make it

so I have a weekly view in the calendar.

Right? And then actually what I can do

here is I can say do two versions

instead of one or you could do up to

four if you'd like. And now what's going

to happen is the cloud agent will

actually build this multiple times and

then I can choose which version I like

the best. That's really cool especially

for UI components. If you're ever

building something in the UI, try to do

multiple versions because then you can

make sure you get the best version of it

and get the best UI possible. And now

while all that's running, I have one

cloud agent building a dark mode,

another cloud agent building a new

component with multiple attempts. I'm

going back. I'm switching to my local

environment. And then I'm going to go

and start building out bigger features

now. Now I can say build a full

marketing landing page for the app. Make

sure I am on codeex the regular version

because this is gonna be a pretty big

task. And I'm going to hit enter. And

now what you see happening as we speak

here, we have two cloud agents up on the

internet building out small UI task for

us. Some of them building out multiple

versions. And now we're working locally

with the local codecs to build out an

entire marketing page. This is how you

multiply your productivity. This is how

you get the most out of these new 5.1

codec models. Now, all we need to do

while these are working is I can go

here. I can switch to our cloud task.

And once they're done, we choose the

version we like the best. And then we

can pull the code down to our local

environment, test it, and commit it. It

really is that simple. That's the

workflow that's worked best for me for

Codeex and these three new models. Now,

as for Codeex versus Clawed Code, this

is a massive improvement for Codeex. I

really like the results I'm getting from

5.1, especially the 5.1 codecs and the

5.1 miles. Codeex Mini, I am still

getting a couple errors where it's just

like getting confused at times. I think

there can be some improvement there, but

5.1 for planning and 5.1 codecs are

excellent. I'm going to be honest from a

pure results perspective. I'm still

liking the results I'm getting from

Sonnet 45 in Claude Code a little bit

more. I'll give you a quick sidebyside

comparison of some of the things I've

done with Claude Code and some of the

things I've done with Codeex. I'm

building a landing page for my Vibe

Coding Academy, which I'm launching in a

couple weeks. It's going to have full

courses on both Claude Code and Codeex

as well as an entire community involved.

This is what the landing page looks like

that Codeex built. This is what the

landing page looks like that Claude Code

built. I prefer this a little bit more.

I think it's a stronger landing page. I

think it looks nicer. It looks more

natural and easy to use. This is still

strong, but for me, from a design

perspective, I don't enjoy the way it

looks as much. There's some issues with

it. There's it's very textheavy. It's

not quite as easy to read. So, for me

personally, in my workflow, I'm getting

a little bit better results from Claude

Code. Those are my comparisons, but

there's still a lot of strengths with

each. Also, by the way, if you want to

be the first to know about the Vibe

Coding Academy, sign up for my

newsletter link down below in the

description. You'll be the first to know

about it. But if you are a fan of the

codeex workflow and the way it works

with the cloud agents, I could see why

you'd want to stick with that and use

that instead. Just for me, my personal

workflow, I'm getting some better

results on my benchmarks from Sonnet 45

still, but Codeex is starting to close

that gap. I just prefer Claude Code a

little bit more at the moment. But with

that being said, if you want to stay

ahead in this game, you need to be

taking advantage of every single tool.

You need to be trying out every single

tool and seeing which ones a you liked

the most to use and b get the most

productivity boost out of. There's a lot

of people that get the most productivity

boost out of cursor, get the most

productivity boost out of amp code.

Maybe codeex is your jam. For me, I'm

getting the most out of cloud code, but

it really is about what works for you. I

actually have a workflow where I'm using

codeex and claude code side by side to

get some amazing results. I'm going to

make a video on that soon. So, that is

Codeex 5.1 with the three new models

they just released. 5.1 in the chatbot.

Again, if you saw my video yesterday, is

my favorite AI model just to straight up

chat with, get creative ideas with. You

need to be using it right now. The other

two, make sure you get Codeex to try

those out. See what you think. I'll have

a lot more videos coming up in the next

few days about using Codeex and all the

other AI coding tools. So, make sure to

subscribe, turn on notifications for

that. Let me know down the replies what

have been your experience so far with

Codeex.