Claude Sonnet 4 vs Claude Opus 3 Comparison July 2025 | AI Model Comparison
Compare Claude Sonnet 4 and Claude Opus 3 side-by-side. See detailed comparisons of their capabilities, pricing, context windows, and performance metrics. Make an informed decision about which AI model best suits your needs.
Model 1
Model 2
| Feature | Claude Sonnet 4 | Claude Opus 3 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Release Date | 5/14/2025 | 2/29/2024 |
| Model Size | N/A | N/A |
| Context Window | 200000 | 200000 |
| Training Data | 3/1/2025 | 8/1/2023 |
| License | Proprietary | Proprietary |
| Pricing | Input: $3/1M tokens Output: $15/1M tokens | Input: $15/1M tokens Output: $75/1M tokens |
| Capabilities |
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