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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 Opus 4.5 is 4ms faster than Anthropic: Claude Opus 4.6
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
Anthropic: Claude Opus 4.5 is 21% faster
| Spec | Anthropic: Claude Opus 4.5 | Anthropic: Claude Opus 4.6 |
|---|---|---|
| Provider | anthropic | anthropic |
| Input price / 1M tokens | Free | Free |
| Output price / 1M tokens | — | — |
| Context window | 200k tokens | 1000k tokens |
| Latency (p50) | 19ms | 23ms |
| Best benchmark score | — | — |
| Open source | No | No |
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...
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