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Model details
Claude-Sonnet-4
Claude-Sonnet-4 serves as a versatile, mid-size model within the Claude family, engineered to provide a balance between high-level reasoning and operational efficiency. As a hybrid reasoning model, it is designed to handle both near-instant responses and extended thinking processes, allowing it to tackle complex problem-solving tasks with greater precision. Its architecture is specifically tuned to improve upon previous generations in areas such as coding, data analysis, and planning, making it a reliable choice for developers and professionals who require a model that follows instructions accurately while maintaining a high standard of performance.
Building on the lineage of the Claude 3.7 series, this model incorporates advanced capabilities for tool use and parallel processing, enabling it to alternate between reasoning and external actions like web searches. Its design emphasizes practical utility in agentic workflows, where it can manage long-running tasks and maintain continuity through improved memory and instruction-following. By integrating these hybrid capabilities, the model is well-suited for high-volume professional environments, offering a robust solution for tasks ranging from automated code reviews and bug fixes to large-scale content generation and research.
Quick Info
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- Poe
- Model key
- anthropic/claude-sonnet-4
- Release date
- May 21, 2025
- Last updated
- May 21, 2025
- Input modalities
- Output modalities
- Capabilities
Cost
- Input token cost
- $2.60
- Output token cost
- $13.00
Limits
- Output tokens
- 64,000 tokens
- Context window
- 983,040 tokens
Transparent token rates
Compare Claude-Sonnet-4 pricing
Rates are shown per one million tokens. Combined means one million input plus one million output tokens.