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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%), Sonnet 4 balances capability and computational efficiency, making it suitable for a broad range of applications from routine coding tasks to complex software development projects. Key enhancements include improved autonomous codebase navigation, reduced error rates in agent-driven workflows, and increased reliability in following intricate instructions. Sonnet 4 is optimized for practical everyday use, providing advanced reasoning capabilities while maintaining efficiency and responsiveness in diverse internal and external scenarios. Read more at the blog post here
同系列或更低输入价的公开模型。 / Same provider or cheaper catalog alternatives.
| Model | Provider | Type | Input | Output |
|---|---|---|---|---|
| claude-haiku-4-5 | Anthropic | chat | 1.00 Token / 1M tokens | 5.00 Token / 1M tokens |
| claude-haiku-4-5-20251001 | Anthropic | chat | 1.00 Token / 1M tokens | 5.00 Token / 1M tokens |
| claude-sonnet-5 | Anthropic | chat | 2.00 Token / 1M tokens | 10.00 Token / 1M tokens |
| claude-opus-4-1-20250805 | Anthropic | chat | 3.00 Token / 1M tokens | 15.00 Token / 1M tokens |
| claude-sonnet-4 | Anthropic | chat | 3.00 Token / 1M tokens |
A quick read of the model identity, commercial setup, and access footprint.
Published rates, tier transitions, and modality-specific surcharges in the current catalog entry.
| Pricing | Billing mode |
|---|---|
| Prompt | $0.7714/1M tokens |
| Output | $3.8571/1M tokens |
| 5m cache write | $0.9643/1M tokens |
| Cache hit | $0.0771/1M tokens |
Hourly usage, latency, reliability, and throughput for this model.
Top 10 AI coding agents using this model during the last 15 days.
Top 10 official SDKs and language HTTP clients using this model during the last 15 days.
| 15.00 Token / 1M tokens |
| claude-sonnet-4-5 | Anthropic | chat | 3.00 Token / 1M tokens | 15.00 Token / 1M tokens |
| # | SDK / Language | Total Tokens | Requests | Success rate | Last active |
|---|---|---|---|---|---|
| #1 | Anthropic SDK Official Anthropic client libraries | 0 | 6 | 0.0% | 2026-09-04 |