Claude 4.5 Sonnet
Anthropic
The ultimate balance of intelligence and speed. Featuring state-of-the-art coding capabilities and native computer use.
Meet Claude 4.5 Sonnet
Anthropic\'s most intelligent model yet, delivering top-tier performance at a mid-tier price point.
Coding Expert
State-of-the-art performance on SWE-bench Verified, capable of handling complex software engineering tasks.
Computer Use
Native ability to interact with computer interfaces, browsers, and applications like a human.
Advanced Agents
Improved multi-step reasoning and tool use for building reliable autonomous agents.
Deep Context
1M token context window allows for deep understanding of large documents and codebases.
Why Choose Claude 4.5 Sonnet
Best-in-Class Coding
Outperforms competitors on coding benchmarks, making it the top choice for developer tools.
Reliable Automation
Reduced hallucination rates and improved instruction following for critical workflows.
Exceptional Value
Intelligence comparable to Opus but at a much more accessible price point.
How to Use Claude 4.5 Sonnet
Login/Register Account
Get API Key
Check API Documentation to Integrate Model
Tech Specs
Context Window
200K tokens
Knowledge Cutoff
2025-04
Modalities
Text, Image, Code
Max Output
16K tokens
Claude 4.5 Sonnet Pricing
per 1M tokens
* Pricing subject to change. Check official Anthropic pricing page for latest details.
FAQ
It outperforms Claude 3 Opus on many benchmarks, especially in coding and agentic tasks, while being faster and cheaper.
Computer Use allows Claude to interact with a computer desktop environment, moving the cursor, clicking, and typing to perform tasks.
Claude 4.5 Sonnet supports a 200K token context window in the API, with up to 1M tokens available for specific enterprise use cases.