Claude 4 vs Gemini 2.5, You know that moment when a new gadget hits the market and everyone can’t stop talking about it? That’s exactly where we are in AI right now. Anthropic just rolled out two showstoppers—Claude Opus 4 and Sonnet 4—and Google’s Gemini 2.5 Pro isn’t ready to hand over the crown without a fight.
In the next few minutes, we’ll put these models through their paces: testing their coding chops, poking at their reasoning, and exploring the fresh features that could make one of them your next secret weapon. Sound good? Let’s get into it.
Coding Prowess: Claude 4 Takes the Lead
Claude Opus 4 is positioned as the world’s best coding model, a claim supported by its leading performance on rigorous benchmarks.
According to Anthropic, Claude Opus 4 achieves an accuracy of 72.5% on SWE-bench (Software Engineering Benchmark) and 43.2% on Terminal-bench. When utilizing parallel test-time compute, its SWE-bench score further improves to 79.4%.
Claude Sonnet 4 also demonstrates exceptional coding capabilities, with a SWE-bench score of 72.7% (80.2% with parallel test-time compute) and 35.5% on Terminal-bench (41.3% with parallel test-time compute). This makes Sonnet 4 a significant upgrade over its predecessor, Sonnet 3.7 (62.3% on SWE-bench, 70.3% with parallel test-time compute; 35.2% on Terminal-bench).
In comparison, while specific Terminal-bench scores for Gemini 2.5 Pro are not provided, its SWE-bench (verified) performance is listed at 63.2%. OpenAI’s models, Codex-1 and GPT-4.1, scored 72.1% and 54.6% on SWE-bench respectively, with OpenAI o3 at 69.1%.
Industry partners have lauded Claude 4’s coding abilities. Cursor calls Opus 4 “state-of-the-art for coding,” while Replit notes “dramatic advancements for complex changes across multiple files.” GitHub plans to introduce Sonnet 4 as the base model for its new coding agent in GitHub Copilot, highlighting its strength in agentic scenarios.
| Model | SWE-bench Accuracy | With Parallel Test-Time Compute |
|---|---|---|
| Claude Sonnet 4 | 72.7% | 80.2% |
| Gemini 2.5 Pro | 63.2% | Not specified |
- By 9.5 percentage points in regular test-time accuracy (72.7% vs 63.2%)
- The advantage increases with parallel test-time compute (80.2% for Sonnet 4; no data for Gemini)
Claude Sonnet 4 ranks highest in the chart, while Gemini 2.5 Pro is second to last (just above GPT-4.1). Claude Sonnet 4 shows much stronger performance for software engineering tasks, especially when leveraging parallel compute, suggesting it’s more capable for complex coding and reasoning tasks compared to Gemini 2.5 Pro.
Advanced Reasoning and Multitask Performance 🧠
Beyond coding, both Claude 4 and Gemini 2.5 Pro exhibit strong capabilities in various reasoning and multitask benchmarks.
- For Graduate-level reasoning (GPQA Diamond), Claude Opus 4 (83.3%), Claude Sonnet 4 (83.8%), OpenAI o3 (83.3%), and Gemini 2.5 Pro (83.0%) show comparable top-tier performance.
- In Agentic tool use (TAU-bench), Claude Opus 4 and Sonnet 4 demonstrate strong retail domain performance (81.4% and 80.5% respectively), outperforming OpenAI models in this specific metric. Gemini 2.5 Pro data is not available for this benchmark.
- Multilingual Q&A (MMLU³) sees Claude Opus 4 and OpenAI o3 tied at a high 88.8%. Gemini 2.5 Pro data is not available.
- For Visual reasoning (MMMU validation), Gemini 2.5 Pro (79.6%) and OpenAI o3 (82.9%) show strong results, with Claude Opus 4 at 76.5%.
- In High school math competitions (AIME 2025), Claude Opus 4 achieves an impressive 90.0% (with pass@1 using the same agent as non-Claude models), while OpenAI o3 scores 88.9% and Gemini 2.5 Pro reaches 83.0%.
Claude Code: Enhanced Developer Collaboration
Claude Code is now generally available, extending Claude’s capabilities directly into the development workflow.
IDE Integrations
New beta extensions for VS Code and JetBrains allow Claude Code to display proposed edits inline within files, streamlining pair programming.
Claude Code SDK
An extensible SDK enables developers to build custom agents and applications using the same core agent as Claude Code.
Claude Code on GitHub (Beta)
Users can tag Claude Code on pull requests to address reviewer feedback, fix CI errors, or modify code.
Gemini 2.5 Pro: A Strong Contender
While the provided text focuses heavily on the Claude 4 launch, the benchmark data indicates that Gemini 2.5 Pro remains a highly capable model.
- It shows competitive performance in Graduate-level reasoning (83.0%) and High school math competitions (83.0%).
- Gemini 2.5 Pro also demonstrates solid results in Visual reasoning (79.6%) and Agentic coding (63.2% on SWE-bench).
- Its performance in Agentic terminal coding (25.3%) is lower than the Claude 4 models in the provided comparison.
Further details on specific new features or API updates for Gemini 2.5 Pro concurrent with the Claude 4 launch were not included in the provided information.
Availability and Pricing of Claude 4 and Gemini 2.5 Pro
Both Claude Opus 4 and Sonnet 4 are available via the Anthropic API, Amazon Bedrock, and Google Cloud’s Vertex AI.
- Claude Opus 4: $15 per million input tokens / $75 per million output tokens
- Claude Sonnet 4: $3 per million input tokens / $15 per million output tokens
These prices are consistent with previous Opus and Sonnet models. The Pro, Max, Team, and Enterprise Claude plans include both models and extended thinking, with Sonnet 4 also available to free users.
Gemini 2.5 Pro: Pricing still in Google Cloud preview (likely around $10–$20 per million tokens based on past tiers).
Both Claude 4 models and Gemini 2.5 Pro are available on major cloud platforms, with pay-as-you-go plans and enterprise agreements.
Coding Task for Gemini 2.5 Pro and Claude 4
Task 1: give me code to develop 16bit ui saas landing page for my ecommerce website.
Claude Sonnet 4
Code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PixelCommerce</title>
<style>
/* Your styles here */
</style>
</head>
<body>
<div class="scanlines"></div>
<header class="pixel-border glitch">
<nav>
<div class="logo">PIXELCOMMERCE</div>
<div class="nav-links">
<a href="#features">Features</a>
<a href="#pricing">Pricing</a>
<a href="#contact">Contact</a>
</div>
</nav>
</header>
<main>
<section class="hero">
<div class="hero-content pixel-border">
<h1>Welcome to PixelCommerce</h1>
<p>The Ultimate 16-bit Style Ecommerce Platform. Retro pixel art meets modern shopping.</p>
<div class="cta-buttons">
<button class="pixel-button">Get Started</button>
<button class="pixel-button">Learn More</button>
</div>
</div>
</section>
<section id="features" class="features">
<div class="container">
<h2 class="section-title">Features</h2>
<div class="features-grid">
<div class="feature-card">
<span class="feature-icon">🕹️</span>
<h3>Pixel-Perfect Design</h3>
<p>Authentic 16-bit pixel art aesthetic that makes your store stand out.</p>
</div>
<div class="feature-card">
<span class="feature-icon">⚡</span>
<h3>Lightning Fast</h3>
<p>Optimized for speed and responsiveness on all devices.</p>
</div>
<div class="feature-card">
<span class="feature-icon">🛒</span>
<h3>Seamless Checkout</h3>
<p>Smooth and secure checkout process with multiple payment options.</p>
</div>
<div class="feature-card">
<span class="feature-icon">🎮</span>
<h3>Retro Gamification</h3>
<p>Engage customers with pixel-style badges and rewards.</p>
</div>
</div>
</div>
</section>
<section id="pricing" class="pricing">
<div class="container">
<h2 class="section-title">Pricing</h2>
<div class="pricing-grid">
<div class="pricing-card">
<h3>Basic</h3>
<div class="price">$9.99 <small>/ month</small></div>
<ul>
<li>Up to 100 products</li>
<li>Basic support</li>
<li>Pixel art templates</li>
</ul>
<button class="pixel-button">Choose Plan</button>
</div>
<div class="pricing-card popular">
<h3>Pro</h3>
<div class="price">$29.99 <small>/ month</small></div>
<ul>
<li>Unlimited products</li>
<li>Priority support</li>
<li>Advanced pixel animations</li>
<li>Gamification tools</li>
</ul>
<button class="pixel-button">Choose Plan</button>
</div>
<div class="pricing-card">
<h3>Enterprise</h3>
<div class="price">Contact Us</div>
<ul>
<li>Custom solutions</li>
<li>Dedicated support</li>
<li>White-label options</li>
</ul>
<button class="pixel-button">Contact Sales</button>
</div>
</div>
</div>
</section>
<section id="contact">
<div class="container">
<h2 class="section-title">Contact</h2>
<p style="text-align:center; font-size: 10px;">Email us at <a href="mailto:support@pixelcommerce.com" style="color:#00ff00;">support@pixelcommerce.com</a></p>
</div>
</section>
</main>
<footer>
© 2025 PixelCommerce. All rights reserved.
</footer>
</body>
</html>Output:
Gemini 2.5 Pro
Code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Your E-commerce SaaS</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap" rel="stylesheet">
<style>
/* --- Root Variables & Basic Setup --- */
:root {
--primary-color: #4b5320; /* Army Green */
--secondary-color: #d2b48c; /* Tan */
--accent-color: #ff4500; /* OrangeRed */
--bg-color: #f5f5dc; /* Beige */
--font-color: #36454f; /* Charcoal */
--border-color: #36454f;
--font-family: 'Press Start 2P', cursive;
}
body {
background-color: var(--bg-color);
color: var(--font-color);
font-family: var(--font-family);
line-height: 1.6;
margin: 0;
padding: 20px;
-webkit-font-smoothing: none; /* Keep fonts pixelated */
-moz-osx-font-smoothing: grayscale;
}
.container {
max-width: 960px;
margin: 0 auto;
padding: 20px;
}
/* --- Typography & Links --- */
h1, h2, h3 {
color: var(--primary-color);
text-align: center;
}
h1 {
font-size: 2.5rem;
margin-bottom: 10px;
}
h2 {
font-size: 2rem;
margin-bottom: 40px;
text-decoration: underline;
text-decoration-color: var(--accent-color);
text-underline-offset: 8px;
}
p {
text-align: center;
font-size: 0.9rem;
}
a {
color: var(--primary-color);
text-decoration: none;
}
a:hover {
color: var(--accent-color);
text-decoration: underline;
}
/* --- Header & Navigation --- */
header {
display: flex;
justify-content: space-between;
align-items: center;
padding-bottom: 20px;
border-bottom: 4px solid var(--border-color);
flex-wrap: wrap; /* Allows wrapping on small screens */
}
.logo {
font-size: 1.5rem;
font-weight: bold;
flex-shrink: 0; /* Prevents logo from shrinking */
}
nav {
margin-top: 10px;
}
nav a {
margin-left: 20px;
font-size: 1rem;
}
@media (max-width: 600px) {
header {
flex-direction: column;
align-items: center;
}
.logo {
margin-bottom: 15px;
}
nav a {
margin: 0 10px;
}
}
/* --- Buttons --- */
.btn {
display: inline-block;
background-color: var(--secondary-color);
color: var(--font-color);
padding: 12px 24px;
border: 3px solid var(--border-color);
box-shadow: 4px 4px 0 var(--border-color);
text-decoration: none;
transition: all 0.1s ease-in-out;
}
.btn:hover {
background-color: #c1a37c; /* Darker tan */
transform: translate(2px, 2px);
box-shadow: 2px 2px 0 var(--border-color);
text-decoration: none;
}
.btn-primary {
background-color: var(--accent-color);
color: var(--bg-color);
}
.btn-primary:hover {
background-color: #e03e00; /* Darker OrangeRed */
}
/* --- Hero Section --- */
.hero {
text-align: center;
padding: 60px 20px;
}
.hero p {
max-width: 600px;
margin: 20px auto 30px;
}
.hero-image {
margin-top: 40px;
border: 4px solid var(--border-color);
}
.hero-image img {
max-width: 100%;
height: auto;
display: block;
}
/* --- Features Section --- */
.section {
padding: 60px 0;
}
.feature-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 30px;
}
.feature-card {
background: var(--bg-color);
border: 4px solid var(--border-color);
padding: 30px;
text-align: center;
}
.feature-card .icon {
font-size: 2.5rem;
color: var(--accent-color);
margin-bottom: 10px;
}
.feature-card h3 {
font-size: 1.2rem;
margin-bottom: 10px;
}
.feature-card p {
font-size: 0.8rem;
}
/* --- Pricing Section --- */
.pricing-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
gap: 30px;
justify-content: center;
}
.pricing-card {
border: 4px solid var(--border-color);
padding: 30px;
text-align: center;
position: relative;
background-color: var(--secondary-color);
display: flex;
flex-direction: column;
justify-content: space-between;
}
.pricing-card.highlighted {
background-color: var(--bg-color);
border-color: var(--accent-color);
transform: scale(1.05);
}
@media (max-width: 991px) and (min-width: 601px) {
.pricing-card.highlighted {
transform: none; /* Disable zoom effect on tablet to prevent layout shifts */
}
}
@media (max-width: 600px) {
.pricing-card.highlighted {
transform: none; /* Disable zoom effect on mobile */
}
}
.highlight-banner {
position: absolute;
top: -15px;
left: 50%;
transform: translateX(-50%);
background: var(--accent-color);
color: var(--bg-color);
padding: 5px 15px;
font-size: 0.8rem;
}
.price {
font-size: 2.5rem;
font-weight: bold;
color: var(--primary-color);
margin: 20px 0;
}
.price span {
font-size: 1rem;
font-weight: normal;
}
.pricing-card ul {
list-style: none;
padding: 0;
margin: 20px 0 30px;
text-align: left; /* Align list items left for readability */
}
.pricing-card li {
margin-bottom: 10px;
}
.pricing-card .btn {
margin-top: auto; /* Pushes button to the bottom */
}
/* --- Footer --- */
footer {
text-align: center;
padding: 40px 0;
margin-top: 40px;
border-top: 4px solid var(--border-color);
}
footer p {
font-size: 0.8rem;
}
</style>
</head>
<body>
<header class="container">
<div class="logo">YourStore OS</div>
<nav>
<a href="#features">Features</a>
<a href="#pricing">Pricing</a>
<a href="#">Login</a>
</nav>
</header>
<main class="container hero">
<h1>Level Up Your E-commerce Game</h1>
<p>The ultimate 16-bit toolkit to manage your online store. Simple. Powerful. Nostalgic.</p>
<a href="#" class="btn btn-primary">Start Your Quest!</a>
<div class="hero-image">
<img src="https://via.placeholder.com/400x200.png?text=Product+Pixel+Art" alt="Pixel art of e-commerce dashboard">
</div>
</main>
<section id="features" class="container section">
<h2>System Features</h2>
<div class="feature-grid">
<div class="feature-card">
<div class="icon">[+]</div>
<h3>Inventory Sync</h3>
<p>Sync stock across all your channels automatically.</p>
</div>
<div class="feature-card">
<div class="icon">[$]</div>
<h3>Sales Dashboard</h3>
<p>Track your earnings with retro-style charts.</p>
</div>
<div class="feature-card">
<div class="icon">[*]</div>
<h3>Customer Support</h3>
<p>Manage customer tickets like a classic RPG quest log.</p>
</div>
</div>
</section>
<section id="pricing" class="container section">
<h2>Choose Your Player</h2>
<div class="pricing-grid">
<div class="pricing-card">
<div>
<h3>Player 1</h3>
<div class="price">$19<span>/mo</span></div>
<ul>
<li>- 100 Products</li>
<li>- Basic Analytics</li>
<li>- Community Support</li>
</ul>
</div>
<a href="#" class="btn">Select Plan</a>
</div>
<div class="pricing-card highlighted">
<div class="highlight-banner">POPULAR</div>
<div>
<h3>Player 2</h3>
<div class="price">$49<span>/mo</span></div>
<ul>
<li>- Unlimited Products</li>
<li>- Advanced Analytics</li>
<li>- Email & Chat Support</li>
</ul>
</div>
<a href="#" class="btn btn-primary">Select Plan</a>
</div>
<div class="pricing-card">
<div>
<h3>Player 3</h3>
<div class="price">$99<span>/mo</span></div>
<ul>
<li>- All of Player 2</li>
<li>- API Access</li>
<li>- Dedicated Manager</li>
</ul>
</div>
<a href="#" class="btn">Select Plan</a>
</div>
</div>
</section>
<footer class="container">
<p>Press Start to Continue © 2025 YourStore OS</p>
<p><a href="#">Terms of Service</a> | <a href="#">Privacy Policy</a></p>
</footer>
</body>
</html>
Output:
Which Should You Choose?
| Use Case | Recommended Model |
|---|---|
| Deep, multi-step coding | Claude Opus 4 (unrivaled SWE-bench & terminal-bench scores) |
| Lightweight coding | Claude Sonnet 4 (cost-effective, instant upgrade over Sonnet 3.7) |
| Complex reasoning & math | Opus 4 (highest AIME), but Gemini 2.5 Pro excels at high-school math tasks |
| Multi-modal tasks | Gemini 2.5 Pro (strongest visual reasoning) |
| Tool-driven agents | Claude 4 (early, robust APIs and parallel tool use) |
| Budget constraints | Sonnet 4 (≈20% cost of Opus 4, with solid capability trade-offs) |
Final Thoughts
The release of Claude Opus 4 and Claude Sonnet 4 marks a leap forward in AI capabilities—especially in coding and agent-driven workflows. Opus 4 sets a new gold standard for sustained, multi-step code generation and tool-augmented reasoning, while Sonnet 4 delivers an optimal blend of performance, cost-efficiency, and precision for everyday development tasks. Key innovations like parallel tool execution, extended thinking, and memory files unlock entirely new classes of applications, from long-running refactors to dynamic multi-modal assistants.
Meanwhile, Gemini 2.5 Pro continues to push the envelope in visual and multi-modal reasoning and holds its own on advanced math benchmarks. For teams whose workloads lean heavily on vision-driven research or specialized reasoning, Gemini 2.5 Pro is a powerful contender.
In the end, your choice depends on priorities:
- Cutting-edge coding & agent robustness: Claude Opus 4
- High performance at lower cost: Claude Sonnet 4
- Vision-centric, multi-modal research: Gemini 2.5 Pro
Whichever model you adopt, this era of fierce competition is driving rapid innovation—bringing truly intelligent AI assistants within reach for every developer and enterprise.
For more posts visit buzz4ai.in
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[…] Also Read: Claude 4 vs Gemini 2.5 : What’s the Best Choice in 2025? […]