guess what claude Opus 4.5 is here and people are saying it is the world's best coding agent but I needed some proof so I put Opus 4.5 head-to-head with Gemini 3 Pro i built a SAS app and I wanted to see who would win and the results might shock you i did it with my friend the boring marketer and in this episode we are going to show you how Opus 4.5 stacks against Gemini 3 Pro and also how you can get the most out of Opus 4.5 hint it has to do with setting up Claude skills and we show you exactly how to do it enjoy the episode
- The Face-Off: Building a Probate Estate Dashboard MVP.
- The Wildcard: Google's "Anti-Gravity" IDE vs. Cursor.
- The Secret Weapon: Installing Anthropic's "Front-End Design Skill".
1. Setting the Stage: Opus 4.5 vs. Gemini 3 Pro
we got the boring marketer on the pod James by the end of this episode what are people going to learn well I'm just going to open the curtains and show everyone sort of how I'm using the latest models i want to dig into Claude Opus 4.5 i want to jam a little bit on Gemini 3.0 pro and uh want to show people how I'm building landing pages and websites as a non-designer non-engineer that are driving great conversion can we live play with 4.5 Opus 4.5 and see what happens let's do it let's do it and I also think something that would be kind of interesting is if we did sort of like a test so uh let's use Opus 4.5 with a front-end design skill let's see what we can come up with and then let's do Gemini 3 Pro with the same prompt and let's see what we can come up up with there as well let's do it all right so um here's a way we could do this greg you want to uh you want to get an idea from idea browser and uh and run that and see what it comes up with sure
so uh do you want me to give you today's idea of the day i actually really like this idea estate dashboard for keeping families informed during probate estate executives fa face constant phone calls and texts from anxious relatives saying "What's happening with dad's estate?" Estate Clear creates a realtime family dashboard where executives can post updates upload documents and track progress while family members get instant notifications instead of playing f phone tag i mean it's one of those small ideas like the t you know there's like not how many estates are there not millions uh in the US at least I don't think actually maybe there are I don't know how many but like I've I've gone through that process before and you know it it's a black box and it takes over a year you have no idea what's going on you're getting these replies from lawyers and stuff like that like give me the the Door Dash visual that's like just letting me see what's going on you know like that's Yeah and you'd probably save a lot of like money on billable hours to attorneys going back and forth asking them questions and stuff and the retention is probably insane like you're not you're not going to cancel that all right let's get to it all right cool so I'm just gonna paste this into here um kind of the full thing that you that you sent me uh so it's truncating it but you get the idea
📷 [IMAGE_PROMPT: Split screen comparison of Claude Opus 4.5 interface and Gemini 3 Pro interface, both displaying code for a dashboard app]
The Battleground: Anthropic's Artifacts vs. Google's AI Studio
2. The Build: Generating the "Estate Clear" Dashboard
so um let's see uh I want to create a uh conversion optimized landing page for my new startup build ahtml that I can view locally you must use the front end design skill um to generate the page so typically what I would do here is I would put uh this whole description and actually let me go ahead and paste this here just so people can can see it typically what I would do is I would do some foundational research you know like I would put this into there hey use the Perplexity MCP tell me who is in this space what's a unique kind of differentiating angle that we can take blah blah blah but you know we really just kind of want to see hey what what do these models do with minimal direction if we just give it the concept so um you must use the front-end design skill to to generate the page let's just start there and we'll we'll get a gauge on on design and what it cooks up all right so uh meanwhile I'm going to go over to uh AI Studio and I'm going to give the exact same uh prompt and could you use like do you have to go to AI Studio could you not have used cursor and just done it within cursor sam Alman the co-founder of OpenAI just said that it is the era of the idea guy and he is not wrong i think that right now is an incredible time to be building a startup and if you listen to this podcast chances are you think so too
now I think that you can look at trends uh to basically figure out uh what are the startup ideas you should be building so that's exactly why I built ideabser.com every single day you're going to get a free startup idea in your inbox and it's all backed by high quality data trends how we do it people always ask we use AI agents to go and search what are people looking for and what are they screaming for in terms of products that you should be building and then we hand it on a you know silver platter for you to go check out um we do have a few paid plans that you know take it to the next level uh give you more ideas give you more AI agents and more almost like a chat GBT for ideas with it but you can start for free ideabrowser.com and if you're listening to this I highly recommend it you you can you could use the uh the cursor agent there um however I just don't want to create some like confusion of it working on like the same things cuz I want to try to keep this like a I don't know a unit test or something like that where we're kind of isolating variables um so let's uh we'll we'll do it this way and we'll see okay so right now uh Claude is working on our design already let's show AI Studio and uh we'll get it uh we'll get it cooking there all right so let's go back to the start let's just paste this in and uh let's get my my prompt uh that we used for the actual page and we said I want to create a conversion optimized landing page for my new startup build an HTML that I can view locally and I'm going to remove the piece about the uh the actual like front-end design skill because we know that Gemini already has those skills so let's let her rip and let's see what happens
what do you think's going to happen like who do you think's going to win i think that if I were to create a prediction here I think that Gemini is going to come up with something more outside of the box i think Claude is going to create something a little more of like what you'd expect i think both will be good but uh that's that's just my gut vibe what do you got what do you think i wouldn't be surprised if Gemini put in AI features in the MVP mhm i've noticed it's been doing that i think that's interesting yep i think that the my guess is Opus is going to come up come and do like a very solid fully featured SAS app but it's going to be like more kind of similar to what you're you're saying it's going to be it's going to be similar to Yeah what you'd expect but I think it's going to be really really solid um whereas the G Gemini might have like a couple bugs and it's you know explored edges that we probably didn't even think of yeah yeah after we look at these initial ones too I've I've had a lot of fun lately also just prompting the model and saying "All right this is cool but like come up with something completely outside the box and seeing how creative each model can get." So after we see the initial ones we'll we'll give that a spin too and see what happens cool okay let's see where we're at so Claude is uh currently doing its thing and here we go so this is Opus 4.5 with the front-end design skill one shot we have the description from idea browser and literally like a one to two sentence prompt stop answering the same questions from everyone in the family so good yep estate executives face constant calls and texts from anxious relatives estate Clear gives you a private family dashboard where everyone stays informed without overwhelming you so I I I like the overall like aesthetic of this i mean going through probate and doing all that and dealing with this in the family like isn't exciting right so like it's got like a a nice sort of like subtle tone to it it's not like screaming in my face with a bunch of like wild colors and stuff like that clearly it is not uh just using the same kind of like purples and typical AI stuff so let's scroll down and and see what else it it did
3. Design Analysis: "Vibe Coding" in Action
so this is your skills that you created hard at work right like from a copy perspective yeah this is so I only told it to reference the design skill actually so okay I didn't explicitly ask it to reference any any of the the copy skills um so I don't think that it's actually using those i think this is just what Opus came up with okay cool yeah so uh we can we can go through it though and and try to optimize the copy with those skills and see what it does um so I think this is really awesome like this is definitely like all you need for like an MVP or getting this getting something like this live and what happens if you click start free trial um let's see so probably nothing yet because we only built the landing page okay yeah built the landing page yeah if we were actually wanting to build out this app it would take a little bit more time uh for Claude to do um so anecdotally it does feel like we've with Opus 4.5 and Gemini 3 it it does feel like we've entered a new stratosphere of vibe coding would you agree i would definitely agree like I think that the lines are just blurring across the board like you know the line between a non-technical person being able to code blurred and I I I would always feel very frustrated with like the design portion of of this whole process you know um yeah you can build stuff but everyone can tell it looks vibeccoated or it just doesn't look right now that's that line is getting blurred so all these lines are just blurring and you know it's not necessarily like vibe coding or vibe marketing or vibe designing or whatever it's just like vibe building in a way and the entire stack is just kind of coming together into one place which is nuts all right so there's Claude let's check in on uh on Gemini and see what we've uh what we've got there all right here's Gemini's version keep the family united goes hard that that does go hard yep manage the estate keep the family united stop playing phone tag the private dashboard for executives to share updates documents and milestones with the whole family at once very clear clear but I don't know it doesn't have a I I like some of the animations on 4.5 i don't know if you noticed that yes like the the box on the right kind um I I also like the layout of the 4.5 one i can get the the copy and I can get that initial visual like right away without needing to scroll or scan down the page
| Feature | Claude Opus 4.5 | Gemini 3 Pro |
|---|---|---|
| Aesthetic | Subtle tone, clean layout, no "AI purple" | More "human" imagery, emojis, bold copy |
| Functionality | Polished, production-ready feel | Creative, includes AI-specific features |
| UX/UI | Animations, immediate visual hierarchy | Standard layout, required scrolling |
all right so uh we've got this here uh social proof um this is very similar uh between both models like this section here it is the AI don't know what to say let AI write the update you called that for sure yep but I think that's like really interesting like to me I probably wouldn't have thought of this and it's also you know if you're trying to create a startup right now that you know gets traction I think having some of these AI first ideas really help yep i was cur This is cool like it it already built a little kind of like preview of some functionality here into the landing page so I like that idea a lot i like the imagery here um feels more human I guess uh which is also something that you know coding models have have missed in the past uh everything feels very robotic you've got the emojis you've got the same style of like illustrations and stuff like that and I think with I mean with Nano Banana 3 coming or Pro coming into the fold too like Gemini has an incredible asset to leverage with its design capabilities uh for you know things like like this uh we've got a very similar kind of like pricing uh card between both designs so man it's tough i think both are good i think I think from a pure aesthetic standpoint I think I like the claw version better that's just me no I I think you're right there like I think objectively it it was nicer uh I think you know from the feature perspective like I said like the AI feature is really interesting impressed that it worked too
4. The Wildcard: Google's "Anti-Gravity" IDE
i mean my real question with 4.5 is like okay great now it's made a landing page but can it create a SAS app you know what I mean like ultimately I'm interested in pushing 4.5 to the limits and I would you know I would be curious if it actually could build an app that I can sell it it absolutely could um I mean you know if you wanted to build this entire product in Claude code with 4.5 you you could definitely do that um you know like I like with with Claude 4.5 sonnet like I've taken um you know idea for a SAS from from zero to production ready so you you can certainly do it um with either of these models
i've got one other concept here for a test just to try to make sure that we're doing this in a fair way all right so um anti-gravity um you know Google's uh agentic IDE i'm curious if we put the same prompt into the Gemini 3 Pro model in anti-gravity if it is different than what you get in AI Studio i have a feeling I know the answer to that but I'm I I Let's try it all right we'll see what happens my hunch is that it's you're going to get worse design out of anti-gravity okay but you know I've been wrong once and I've been wrong before i've been I've been wrong lots of times so okay let's check it out and by the way like anti-gravity is really cool like definitely recommend people check it out so I'm just going to paste in the same prompt and let's see what happens so why should people use anti-gravity over a cursor well uh it's a good question i mean at the end of the day they're both VS Code forks you know so they're they're both kind of based off of uh VS Code um which is open source and and free
however I like some of the things anti-gravity is working on to be honest I've just started using it and testing it and and things like that but they've got some like Chrome stuff built in here u where uh it can access the browser in a really easy way and it can even access you you install a Chrome extension so if if anyone's done vibe coding in the past and you're trying to like squash a bug you know you open up uh your uh deployment whether that's locally or hosted or whatever and you know your coding models like hey like navigate to it on Chrome and then open up like the the console and the dev and the dev tools and figure out like tell me if if this API connection is working copy paste the responses like that whole debugging process is is pretty painful so with the Chrome extension um that anti-gravity connects to it can access that data for you programmatically so it's accessing the DOM it's seeing sort of the data behind the scenes so um you know I I suspect it will greatly minimize the back and forth in this debugging process when it has a very tight uh browser integration and can access data through the anti-gravity extension so I think that's super interesting
5. Unlocking Performance: The "Front-End Design Skill"
going back to kind of like my setup a little bit there are a few skills that I recommend everyone create uh with with Claude Opus so uh a skill is just like a set of instructions that the model is going to reference when it does a certain task okay so I do a lot of like website optimization for thevibemarketer.com i want to figure out hey how can I convert more visitors into customers and we've talked a lot about this but like it comes down to really good copywriting i think that um you know that's a struggle for like 90% of business owners is knowing what kind of copy to write uh for their business they don't want to feel you don't want to feel too cheesy too salesy but you also want to leverage the principles of influence and persuasion in the right way you know you don't want to have this empty brand speak and you also don't want to be like hey make this much money do this like right away there's a there's a fine balance right so I call this elevated direct response and I build a skill around it and every time I write copy for my website uh Claude references this skill and it does a great job at you know producing uh you know this this style of conversion focused copy
/plugin add anthropic to access the marketplace.
3. Run /plugin install front-end-design @claude-code-plugins.
but there's one final skill that is a must-have uh with Opus 4.5 now everyone's seen all the Gemini 3 designs out there and it does a fantastic job uh I think it's awesome but don't sleep on on Claude 4.5 Opus with the front-end design skill most people don't know that this skill exists i didn't know it existed until uh you know Claude posted like a blog post about it on X and I I read it and uh you can install it with two simple prompts um I wrote a an expost on this but uh basically all you do you enter this first one in this adds sort of this anthropic plug-in marketplace into your Cloud Code environment and then you've got plug-in install front-end design at Cloud Code plugins so what this is going to help Cloud Code do is avoid all of that typical AI design stuff you know we've seen it everywhere uh everything looks the same you've got the the same gradients the same text all of that so skills are just like long sets of prompts or instructions so in there Claude's own team built this out it's like avoid the typical AI stuff build pro production grade designs and interfaces etc so I ran one prompt uh with this
Pros & Cons
👍 Pros
- Opus 4.5: "Gets it" immediately; clean, polished aesthetic without "AI bloat."
- Gemini 3 Pro: Innovative features (Deep Think mode), excellent "Nano Banana" image generation integration.
- Anti-Gravity: Superior debugging via Chrome extension/DOM access.
👎 Cons
- Opus 4.5: Requires "Skill" setup for maximum design output.
- Gemini 3 Pro: Layouts can feel slightly more "standard" or robotic without prompt tweaking.
Final Verdict
so you know that's the episode opus 4.5 versus Gemini 3 Pro with some bonus anti-gravity what's your you know TLDDR on on this whole experience and you know should people get started with 4.5 today uh yes uh 4.5 Opus I think is going to be an incredible model just based off some of these initial tests that we did and and that I was doing last night when you combine it with that front-end design skill it's able to oneshot some pretty incredible interfaces and and designs um I think if you level up that design like we were talking about with actual good copy that's geared toward conversion like you're going to be you're going to be unstoppable so like just to review the copy review leaders in your niche review direct response add context of how you talk naturally define your your elevated direct response skill so if you use that in combination with the design skill uh I think you'll be really pleased
Frequently Asked Questions
Is Claude Opus 4.5 better than Gemini 3 Pro for coding?
It depends on the use case. In late 2025 benchmarks, Opus 4.5 scores slightly higher on SWE-Bench (approx 80.9%) for complex refactoring and "thoughtful" engineering. However, Gemini 3 Pro often excels in multimodal tasks and speed. Many developers use Opus for logic and Gemini for visual/creative generation.
What is Google Anti-Gravity IDE?
Anti-Gravity is Google's agentic development environment (IDE). Unlike standard editors like VS Code, it features deep integration with Chrome, allowing the AI to access the DOM, see console errors directly, and debug web apps programmatically without copying and pasting logs.
How do I install the Front-End Design skill in Claude?
In the Claude Code environment, you first add the Anthropic plugin marketplace using /plugin add anthropic, and then install the specific skill by running /plugin install front-end-design @claude-code-plugins. This instructs the model to avoid generic "AI" aesthetics.
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