Claude 4 Sonnet
Parameters
-
Context Length
200K
Modality
Text
Architecture
Dense
License
Proprietary
Release Date
15 Jan 2025
Knowledge Cutoff
Jan 2025
Evaluation Benchmarks
Rank
#82
| Benchmark | Score | Rank |
|---|---|---|
StackEval | 0.978 | 🥉 3 |
QA Assistant | 0.96 | 7 |
Summarization | 0.82 | 11 |
Coding | 0.56 | 18 |
Graduate-Level QA | 0.754 | 35 |
Professional Knowledge | 0.79 | 38 |
Rankings
Overall Rank
#82
Coding Rank
#26
About Claude 4 Sonnet
Claude 4 Sonnet is a production-oriented large language model that implements a hybrid reasoning framework, designed to optimize the trade-off between execution speed and logical depth. The model's architecture facilitates two distinct processing states: a standard mode for near-instantaneous response generation and an extended thinking mode that utilizes a configurable token budget for internal, step-by-step chain-of-thought processing. This dual-state capability allows for more sophisticated problem-solving in complex domains like software engineering and mathematics, where the model can systematically verify its logic before committing to a final output.
Technically, the model integrates advanced attention mechanisms and rotary positional encodings to support an expansive context window, enabling the processing of high-density information such as entire software repositories or legal corpora. The architecture is built on a dense transformer foundation, utilizing multi-head attention (MHA) and absolute position embeddings to maintain high precision across its operational range. Developers can programmatically control the model's reasoning intensity through specialized API parameters, effectively tuning the latent computational effort allocated to specific requests.
Optimized for reliability in agentic workflows, Claude 4 Sonnet features enhanced instruction-following and improved memory persistence, which reduces context degradation during long-horizon tasks. Its multimodal capabilities allow for the simultaneous processing of text and image inputs, supporting use cases from automated visual inspection to complex document analysis. The model is deployed as a proprietary foundation model, ensuring consistent performance and security standards suitable for enterprise-grade applications and high-throughput production environments.
Technical Specifications
Detailed architecture specifications are limited for proprietary models.
Resources
About Claude 4
Anthropic's fourth generation Claude models with advanced reasoning, extended context windows up to 200K tokens, and configurable thinking effort levels. Features improved safety alignment, nuanced understanding, and sophisticated task completion. Includes Opus (most capable), Sonnet (balanced), and Haiku (fast) variants, with thinking modes that enable transparent chain-of-thought reasoning for complex problems.