Claude Sonnet 4 vs GPT-4o
Side-by-side comparison of Anthropic's Claude Sonnet 4 and OpenAI's GPT-4o. Which one is right for you?
Benchmark Comparison
Coding
Claude Sonnet 4 wins92
84
Reasoning
Claude Sonnet 4 wins90
86
Multimodal
GPT-4o wins85
90
Speed
GPT-4o wins88
92
Overall
Claude Sonnet 4 wins89
87
Pricing Comparison
Claude Sonnet 4
API Input$3.00/1M
API Output$15.00/1M
Subscription$20/mo
Free tierYes
GPT-4o
API Input$2.50/1M
API Output$10.00/1M
Subscription$20/mo
Free tierYes
Specifications
| Spec | Claude Sonnet 4 | GPT-4o |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Released | 2026-01 | 2024-05 |
| Category | Frontier | Frontier |
| Context Window | 200K | 128K |
| Open Source | No | No |
| Multimodal | Yes | Yes |
| Best For | Balanced performance, Everyday coding, Writing | Everyday tasks, Multimodal input, Cost-effective |
Claude Sonnet 4
Good balance of speed and quality
Competitive pricing
Reliable
Not the best at any single task
Smaller multimodal capabilities
GPT-4o
Fast responses
Good price-to-performance
Solid multimodal
Outperformed by newer models on reasoning
Smaller context than GPT-5.5