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I'm just going to get it out of the way.
Claude Opus 4.5 is the greatest AI model
I've ever used. It is absolutely
revolutionary for coding while also
being significantly faster and cheaper.
What Anthropic released today, I think,
is the biggest leap in AI we've seen in
maybe years. In this video, I'll cover
why I feel this way, tell you everything
you need to know about this model and
how it works, show you all the tests I
ran, and give you some ideas for things
you can build today, even if you've
never coded a day in your life. This
might sound like a whole lot of hype,
but I'm about to back up everything I
just said. If you watch this video until
the end, you will be a master of Claude
Opus 4.5 and be able to build the apps
of your dreams. Let's get into it. So,
real quick, getting into everything that
changed with Claude Opus 45, we will
speed through this. Number one, when it
comes to coding, and this is not a lie.
A lot of these benchmarks these AI
companies put out are totally crap. They
totally make things up. They overfit
their models for the benchmarks. This is
true. Opus 45 is significantly better
than any other AI model I've ever used
when it comes to coding, and it is not
remotely close. It's incredible for
agent coding, coding in the terminal,
for using different tools while it's
coding, for novel problem solving, for
solving big bugs and issues. It is the
best and is not even really questionable
that it's the best. There's some things
it's not best at, and shout out
Anthropic for showing the benchmarks
that it did not win at things like
graduate level reasoning, visual
reasoning, multilingual Q&A. Those are
things that Gemini 3 Pro, I feel like,
is their sweet spot. Anthropic sweet
spots more on the building and coding
side. But for that building in coding,
it is the creme de la creme
unquestionably. In fact, it is so good
at coding, it beat all the other
engineering candidates that applied for
anthropic. They gave the coding exam
they give engineering candidates to
Claude Opus 45. It beat every single
engineering candidate that applied for
anthropic. Every single one. And I'll
tell you this, the coding tests they
give to people applying to these big AI
research labs, they're probably the
hardest tests you're ever going to get.
Opus 45 beat all of them, higher than
any human candidate ever. I don't want
to call Claude Opus 45 AGI. I think
we're still a bit off from that. But I
will go as far to say that this might be
coding AGI. AGI is when AI is just as
good, if not better, than humans in
every way. I think this is just as good,
if not better, than humans when it comes
to coding. I am going to say it's coding
AGI. And I'm going to show you why in a
second. Here's maybe the most underrated
update of them all, though. On top of
all that, your conversations
no longer hit walls. Usually, when
you're talking to an AI and you're
having longer conversations, eventually
you hit a wall and you have to like
start a new chat because the context
window was filled up. They figured out a
new way inside of Claude where you're no
longer hitting walls and your
conversations can basically be infinite
length. They found a new way to
progressively compact as you go. That is
massive. Now you can have massive huge
conversations in claude in claude code
that don't degrade over time. That is
revolutionary and is going to make using
AI so much better. On top of that, they
released Claude Code Desktop. And this
is so sick, too. Inside the Clawed
Desktop app, which is out on Mac and
Windows, you now have this new button
right here, which switches you to the
coding section where you now can use
Claude Code right on your desktop. It
does it both locally and on the web. So,
you have your web agents that you can
spin up on the side as well as working
locally on your computer. I've been
testing this app all day and it is
excellent. It is the new way I'm going
to use Claude Code. I'm not going to use
Visual Studio Code anymore. I'm not
going to be using Cursor with the CLI in
it or just the CLI by itself. I think
this is the best version of Claude Code
yet. It's basically a wrapper for the
CLI where it's taking everything going
on in your CLI and giving it a nice
visual interface, right? So, it's not
adding a ton on top of it. It's just
taking everything you have in your CLI
and making it nice to read, easy to use,
good formatting, everything like that.
And what makes it so good now is I now
have it side by side with all my other
clawed code sessions. So instead of
having to have 20 different Visual
Studio Code windows open at all time
that slows my MacBook down to a crawl, I
now can have all my sessions side by
side cloud code for desktop. If I want
to spin up AI agents on the cloud, I can
do that. or if I want to work locally, I
can do that. That is so so nice. And on
top of that, it is right next to my
chats. So I can go in, have chats with
Claude, just kind of as an AI chatbot,
my co-pilot CEO, and quickly switch over
to Claude Code with one click and spin
up agents to get work done for me.
Amazing. But let's talk about the coding
performance. The reason why we're here
today, how good is it at coding? Well,
as I said earlier, this is
revolutionary. Claude Opus 45 is
significantly better. And when I say
better, I'm comparing it to Sonnet 45,
which I think was the previous king of
coding, but as well as Gemini 3 and 5.1
codecs. It is significantly cheaper.
That's in comparison to the previous
Opus. So the previous Opus was actually
three times more expensive. 4.1 was
three times more expensive than 45. In
fact, it is now the same cost inside
Claude code as sonnet. You have the same
limits inside claude code with opus 45
as you do sonnet 45. In fact, opus 45 is
now the default inside claude code. This
is the first time ever anthropics done
that they push opus 45 on you to use
instead of sonnet. That is mind-blowing.
And then on top of that, it's
significantly faster. Check this out.
One of the first tests I do with every
new coding model is have it build a 3D
complex firsterson shooter. I gave it my
prompt to build it. It built a to-do
list out, which is standard. Every model
does this. What it did is first I was
very impressed. It pulled in the right
skills to use with with the prompt right
away, which honestly before this claude
was like 20% hit rate on pulling in the
correct skills. Now it's at 100%. And
then it went in, wrote all the code, and
then checked off every to-do list.
Right? Instead of going down the to-do
list one by one, it just oneshot the
entire to-do list. It did this at a
speed that was significantly faster than
Sonnet and definitely way faster than
the last Opus. Opus was slow as f 4.1.
It was unbelievably slow. This is not
only faster than Opus, it is just as
fast, if not faster than Sonnet. It
completed the entire to-do list. Now,
usually when you're working with an AI
model, you have better, cheaper, faster.
It's pick two of three. Every other AI
model in the past is pick two or three.
You can have it where it's better and
cheaper, but it's not going to be
faster. You can have faster and better,
but it's not going to be cheap. This is
the first model where it codes better,
cheaper, and faster. This app I'm about
to show you was completely one-shot.
This is the exact conversation I had
right here. And here is the code it
produced by me saying build a 3D
firstperson shooter with enemies and
power-ups. I have ran this test with
every AI model that's came out and none
of them have come remotely close to what
you're about to see here. So you come
in, it immediately has different waves.
You have these spectacular visuals with
stars and planets around you. There's
audio. I think you can hear the audio
through the recording of the enemies
coming at you. Really nice particle
effects. And they have different, if you
can see on the right, you're gaining XP
for every single thing you kill. And you
even get combos. So if I kill things
fast enough, you can see the combos on
the right. This was all with just a
really simple prompt that said, "Build a
stylistic firsterson shooter with
enemies and guns and powerups." This is
by far the Look, you can see the waves
and the scores coming in. This is by far
the best test I've ever ran with an AI.
Spectacular. I had to build an entire 3D
city flythrough simulator. So, we have
this entire city it generated in one
single file of this 3D flythrough where
you can see all the buildings. You can
see the different lighting. You can see
different windows lit up. You can see
different details like the antennas on
top of the building. I've ran this with
every single model. None of them have
come close to this. Some of them have
crashed my computer. They were so bad.
This is excellent. This is so much
better than any other model has ever
done. And that was all with one shot as
well. It is writing more code, faster,
and with higher quality that works on
the first try. It hasn't introduced any
bugs in any of the tests I've done so
far. It just all works in one shot,
which is amazing. As for chatting with
Opus 45, it is very strong as well. It's
very different. It's different than what
I was expecting. So just for
comparison's sake, I was planning this
app with 5.1 thinking which was my
previous favorite when it came to
creative planning and it gives you a
lot. It's very good ideas but you know
you get a lot of fluff where you get a
lot of wind up on the explanation and
then it gave me a bunch of ideas for the
apps. Every idea came with a whole bunch
of bullet points and it gave me like 17
different ideas with a ton of bullet
points and then even more kind of fluff
afterwards explaining it. It's good
fluff. I like the fluff, but there's
just a lot. This is a very long
explanation. I'm just saying, "Hey, can
you help me plan out this app?" With
Claude Opus 45, it's a little different
where there's basically zero fluff.
Basically, a sentence windup before the
explanation. Then it gives me a few
ideas. Every idea basically just has a
one-s sentence explanation behind it.
And then the ending is just another one
sentence. So there's no formatting,
there's no bullet points, it's just
here's your ideas and an explanation
behind each. While GBD 5.1 Thinking gave
me a tremendous amount of bullet points
and formatting, from a speed
perspective, this was also significantly
faster than 5.1 and definitely much
faster than Opus 4.1. Now, the question
becomes, you know, what is your
preference when you ask a question and
want an explanation? Do you want a ton
of formatting and detail? If you do, I'm
probably still sticking with 5.1
thinking. But if you just want quick,
concise answers that get straight to the
point, Opus 45 looks like it's going to
be the way to go for this. I'm going to
be honest, me personally, I think I
actually do like the detail. I think I
like super deep dives when I ask
questions. So, I might be sticking with
5.1, but I still might be using Opus 45
more to be honest with you because this
user interface of switching between
coding and chatting is so nice and well
done and simple where I can go in, give
a prompt to an AI, then come out and do
a chat, then go back and forth. I might
be switching to 45. So, here's your
workflow. Here's what I would do right
now to build amazing things with Opus
45. I would make sure you update your
desktop app. I would come into the chat
session, start a new chat, go to Opus45.
I would make a list of all your
interests. Just brain dump all your
interests. Say, "Hey, can you help me
come up with four to five ideas for apps
I can build that are part of my
interests?" Take one of those ideas that
Opus gives you, because it is a really
good creative planner. switch to the
code mode right here. Spin up a new
agent to do that work. Build it out and
then go back and forth between the chat
and the agent. Say, "Hey, I just started
building this out with the agent. What
would you add?" Then you take those
ideas. Go to the coder. Put those new
ideas in. Go back to your chat. Say,
"Okay, this is where we are. This is our
progress. What are some marketing ideas?
What are some other things we can build
out?" Then go back to the coder. Make
the chat your co-pilot CEO that plans
the app out and then make this code
button your senior developer that will
build the app out for you. I think this
is the first time I can comfortably say
an AI agent is a senior developer. Not a
junior developer, not an intern, but
actually a senior level developer.
That's how impressed I am with Opus 45.
That's the workflow I'd use right now.
There are certain times in technology
where things just get kicked up a notch,
where we see progress we haven't seen
before and you need to jump in early in
order to take advantage of that
progress. I think now is one of those
times where the people who get in early
on this massive progress are going to
have a leg up on other people. Opus 45
is only available on the max plans for
Claude Code. So you need to be paying
the $100 a month, but I think it is
honestly worth much more than that to be
quite honest with you. But I think the
$100 month is a good place to start for
testing this out. See if it's for you.
And if you're curious, here are my new
use cases when it comes to AI models,
coding, Opus 45, easily straight up
answers to questions. I like Gemini 3,
current events, Gemini 3, creative
writing. I'm going to stick with 5.1
thinking because it's a little bit more
verbose, but business planning because
it's concise. I like Opus 45. Google for
video and image generation and it is not
remotely close. Feel free to pause if
you want, but Opus 45 is mind-blowing.
Have you been using it? Let me know down
below what your use cases have been.
Leave a like if you learned anything at
all. Make sure to subscribe and turn on
notifications. All I do is create
amazing videos on AI. I am releasing the
Vibe Coding Academy this Friday. So,
make sure to sign up for the weight list
down below. Man, these are exciting
times to be alive. I will see you in the
next
Claude Opus 4.5 is the best AI model ever. Here's why and how to get the absolute most out of it Join the Vibe Coding Academy waitlist: vibecodingacademy.dev Sign up for my free newsletter: https://www.alexfinn.ai/subscribe Follow my X: https://x.com/AlexFinnX My $300k/yr AI app: https://www.creatorbuddy.io/ Announcement post: https://www.anthropic.com/news/claude-opus-4-5 Timestamps: 0:00 Intro 0:45 Everything that's new 3:22 Claude Code Desktop 5:10 Using Opus for Coding 6:07 Testing Opus Coding 9:02 Chatting with Opus 4.5 11:06 Opus 4.5 Workflow 13:01 Use cases