Claude Haiku 4.5
Parameters
-
Context Length
200K
Modality
Text
Architecture
Dense
License
Proprietary
Release Date
1 Oct 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 Haiku 4.5
Fastest Claude 4.5 model optimized for high-throughput applications. Good coding (72.17 LiveBench Coding) and language capabilities (57.05). Cost-effective option for simple tasks and high-volume workloads. Minimizes latency while maintaining acceptable quality for straightforward queries and basic assistance.
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
#50
| Benchmark | Score | Rank |
|---|---|---|
Coding Aider Coding | 0.75 | ⭐ 4 |
Agentic Coding LiveBench Agentic | 0.44 | 24 |
Coding LiveBench Coding | 0.72 | 25 |
Web Development WebDev Arena | 1297 | 28 |
Mathematics LiveBench Mathematics | 0.50 | 49 |
Reasoning LiveBench Reasoning | 0.34 | 54 |
Rankings
Overall Rank
#50
Coding Rank
#26