Claude 4 Sonnet
Parameters
Undisclosed
Context Length
200K
Modality
Text
Architecture
Undisclosed
License
Proprietary
Release Date
15 Jan 2025
Knowledge Cutoff
Jan 2025
API Pricing (per 1M)
Input: $5.00 · Output: $25.00
Evaluation Benchmarks
Rank
#86
| Benchmark | Score | Rank |
|---|---|---|
Software Engineering | 0.77 | 4 |
Graduate-Level QA | 0.754 | 73 |
Agentic Index | 0.18 | 89 |
General Text | auto (16k) 1426 Standard 1414 | 91 103 |
Coding Index | auto (16k) 0.38 | 116 |
Intelligence Index | auto (16k) 0.19 Standard 0.17 | 179 199 |
StackEval Archived | 0.978 | 🥇 1 |
QA Assistant Archived | 0.96 | 7 |
Coding Archived | 0.61 | 9 |
Summarization Archived | 0.817 | 10 |
Rankings
Overall Rank
#86
Coding Rank
#35
About Claude 4 Sonnet
Claude 4 Sonnet is a versatile multimodal model from Anthropic balancing rapid execution with configurable extended thinking modes. It is optimized for enterprise automation, visual document analysis, and dependable long-context retrieval.
Technical Specifications
Architecture specifications are undisclosed 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.