Model Comparison
Claude Opus 4.6Claude Sonnet 4.5
Let's see who can write code better - Claude Opus 4.6 or Claude Sonnet 4.5
Model Information
Claude Opus 4.6
Description
Latest flagship Claude model with breakthrough coding and agentic capabilities
Specifications
Context Window200K
Max Output16K
ReleasedFeb 2026
API✓
Pricing (per 1M)
In / Out
$5/ $25
Key Features
Breakthrough reasoningAdvanced agentic codingComplex problem solvingMulti-language supportVision capabilities
Strengths
- ✓State-of-the-art coding performance
- ✓Superior agentic task handling
- ✓Excellent at long-horizon tasks
- ✓Most capable Claude model to date
Weaknesses
- ✗Premium pricing
- ✗Slower response times
- ✗Overkill for simple tasks
Agent Support
No known agents
Claude Sonnet 4.5
Description
Balanced Claude 4.5 model with excellent performance
Specifications
Context Window200K
Max Output8K
ReleasedSep 2025
API✓
Pricing (per 1M)
In / Out
$3/ $15
Key Features
Balanced performanceAdvanced reasoningCode generationMulti-modal capabilities
Strengths
- ✓Good price-performance ratio
- ✓Versatile capabilities
- ✓Fast inference
- ✓Strong at most tasks
Weaknesses
- ✗Not as powerful as Opus
- ✗Higher cost than Haiku
- ✗May struggle with very complex tasks
Agent Support
No known agents