Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...
| Provider | anthropic |
|---|---|
| Input price | $3.00 / 1M tokens |
| Output price | $15.00 / 1M tokens |
| Context window | 1000k tokens |
| Max output | 64k tokens |
| Modalities | image, text, file |
| Model ID | anthropic/claude-sonnet-4 |
A 1,000-token prompt with a 500-token answer on Anthropic: Claude Sonnet 4 costs roughly $0.01050. Use the OpenRouter cost calculator to price your own prompt across 400+ models, or the token counter to measure prompt length first.
PromNest stores your prompt library and lets you run any prompt on Anthropic: Claude Sonnet 4 with your own OpenRouter key — including side-by-side comparison with other models. Browse 1,000+ ready-made prompt templates to start.