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Side-by-side comparison of API pricing, context window, latency, and benchmark performance. Data refreshed daily from provider APIs and ModelStop's own latency probes.
⚡Anthropic: Claude Sonnet 4.6 is 27ms faster than Anthropic: Claude Sonnet 4.5
📈Anthropic: Claude Sonnet 4.6 scores 1255.0 pts higher on benchmarks
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
Anthropic: Claude Sonnet 4.6 is 135% faster
| Spec | Anthropic: Claude Sonnet 4.5 | Anthropic: Claude Sonnet 4.6 |
|---|---|---|
| Provider | anthropic | anthropic |
| Input price / 1M tokens | Free | Free |
| Output price / 1M tokens | — | — |
| Context window | 1000k tokens | 1000k tokens |
| Latency (p50) | 47ms | 20ms |
| Best benchmark score | — | 1255.0 |
| Open source | No | No |
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...
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