GPT-4 vs Claude 3: Complete Comparison Guide 2025
An in-depth comparison of GPT-4 and Claude 3 models covering performance, pricing, capabilities, and best use cases. Find the right AI model for your project.
COZHUB Team
AI Research
Introduction
Choosing between GPT-4 and Claude 3 is one of the most common decisions developers face when building AI applications. Both are state-of-the-art large language models with impressive capabilities, but they have distinct strengths and weaknesses.
This comprehensive guide will help you understand the differences and choose the right model for your specific needs.
Quick Comparison Table
| Feature | GPT-4o | Claude 3.5 Sonnet |
| Context Window | 128K tokens | 200K tokens |
| Input Price | $2.50/1M tokens | $3.00/1M tokens |
| Output Price | $10.00/1M tokens | $15.00/1M tokens |
| Vision | Yes | Yes |
| Function Calling | Yes | Yes |
| Best For | General tasks, coding | Long documents, analysis |
Performance Benchmarks
Coding Performance
Both models excel at coding tasks, but they have different strengths:
GPT-4o Strengths:
- Better at generating boilerplate code
- Strong with popular frameworks (React, Express, Django)
- Excellent at explaining code
Claude 3.5 Sonnet Strengths:
- Better at understanding complex codebases
- Superior context handling for large files
- More consistent code style
Reasoning & Analysis
GPT-4o:
- Score: 92.5% on MMLU
- Strong mathematical reasoning
- Excellent at step-by-step problem solving
Claude 3.5 Sonnet:
- Score: 90.2% on MMLU
- Superior document analysis
- Better at maintaining context in long conversations
Context Window Comparison
One of the biggest differences is context window size:
- GPT-4o: 128,000 tokens (~96,000 words)
- Claude 3.5 Sonnet: 200,000 tokens (~150,000 words)
Claude's larger context window is crucial for analyzing full codebases, processing long legal documents, and maintaining context in extended conversations.
Pricing Analysis
Cost Comparison (per 1M tokens)
| Model | Input | Output |
| GPT-4o | $2.50 | $10.00 |
| Claude 3.5 Sonnet | $3.00 | $15.00 |
| GPT-4o-mini | $0.15 | $0.60 |
| Claude 3.5 Haiku | $0.25 | $1.25 |
Best Use Cases
Choose GPT-4o When:
- Building chatbots with broad knowledge needs
- Generating marketing content
- Creating educational materials
- Working with structured data extraction
Choose Claude 3.5 Sonnet When:
- Processing long documents (>50K words)
- Analyzing codebases or technical documentation
- Building research assistants
- Safety-critical applications
Switching Between Models with COZHUB
One of COZHUB's key advantages is the ability to easily switch between models with a single line change:
const model = isComplexTask ? 'claude-3-5-sonnet' : 'gpt-4o-mini';
Conclusion
Both GPT-4 and Claude 3 are excellent models with distinct advantages. GPT-4o is the better all-rounder with faster responses and lower costs. Claude 3.5 Sonnet excels at long-context tasks and document analysis.
The best approach? Use both strategically based on your specific needs. With COZHUB's unified API, you can easily route requests to the optimal model for each task.