Pricing Comparison
| Provider | Input / 1M | Output / 1M | Cache / 1M |
|---|---|---|---|
| Anthropic Official | $3.00 | $15.00 | $0.30 |
| Crouter | $0.42$3.00 | $2.10$15.00 | $0.08$0.30 |
| You Save | 86% | 86% | 73% |
All prices per 1M tokens. No hidden fees, no monthly minimums.
Key Features
Extended Thinking
Internal reasoning process for complex problems. Sonnet thinks through multi-step tasks before responding, improving accuracy.
1M Context Window
Process entire codebases, long documents, and extended conversations. Five times larger than Haiku context window.
Advanced Code Generation
Write production-ready code with proper error handling, testing, and documentation. Understands complex architectures.
Prompt Caching
Save 73% on repeated context with automatic caching. Ideal for applications with large system prompts or documentation.
Perfect For
AI Coding Assistants
Power tools like Cursor, Windsurf, and Claude Code with advanced reasoning. The 1M context handles entire project codebases.
Complex Problem Solving
Analyze multi-step problems with extended thinking. Sonnet breaks down complex tasks and provides structured solutions.
Technical Writing
Generate documentation, API references, and technical guides. Maintains consistency across large documentation sets.
Research Analysis
Analyze research papers, extract insights, and synthesize findings. The 1M context processes multiple papers simultaneously.
Technical Specifications
| Model ID | claude-sonnet-4-6-thinking |
| Context Window | 1,000,000 tokens |
| API Format | Anthropic Messages API (/v1/messages) |
| Thinking Mode | Extended (automatic) |
| Streaming | Yes (SSE) |
| Prompt Caching | Yes (automatic) |
| Rate Limit | 70 requests/minute |
Quick Start
curl https://api.crouter.dev/v1/messages \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-H "anthropic-version: 2023-06-01" \
-d '{
"model": "claude-sonnet-4-6-thinking",
"max_tokens": 4096,
"messages": [
{"role": "user", "content": "Explain quantum computing"}
]
}'View full documentation for more examples and integration guides.