Claude 4.5 Opus Medium Effort
Parameters
-
Context Length
200K
Modality
Text
Architecture
Dense
License
Proprietary
Release Date
1 Nov 2025
Knowledge Cutoff
-
Technical Specifications
Attention Structure
Multi-Head Attention
Hidden Dimension Size
-
Number of Layers
-
Attention Heads
-
Key-Value Heads
-
Activation Function
-
Normalization
-
Position Embedding
Absolute Position Embedding
Claude 4.5 Opus Medium Effort
Claude 4.5 Opus configured for medium thinking effort, balancing capability with response time. Excellent web development performance (Elo 1391), strong coding (78.51), and exceptional language understanding (78.66). Optimized for production workloads requiring high quality without maximum computation. Good choice for most enterprise applications.
About Claude 4.5
Enhanced Claude models with further improvements in reasoning, coding, and agentic capabilities. Features advanced thinking modes with adjustable effort levels (high, medium, standard) for optimal performance-latency tradeoffs. Excels at complex analysis, software development, web development, and long-context understanding. Includes thinking variants that expose reasoning process for improved transparency.
Other Claude 4.5 Models
Evaluation Benchmarks
Rank
#19
| Benchmark | Score | Rank |
|---|---|---|
Agentic Coding LiveBench Agentic | 0.63 | 🥇 1 |
Coding LiveBench Coding | 0.79 | ⭐ 6 |
Web Development WebDev Arena | 1391 | 16 |
Data Analysis LiveBench Data Analysis | 0.67 | 31 |
Reasoning LiveBench Reasoning | 0.53 | 33 |
Mathematics LiveBench Mathematics | 0.66 | 35 |
Rankings
Overall Rank
#19
Coding Rank
#19