Model Comparison
Claude Opus 4.5Claude 3.7 Sonnet
Let's see who can write code better - Claude Opus 4.5 or Claude 3.7 Sonnet
Model Information
Claude Opus 4.5
Description
Most advanced Claude model with enhanced capabilities
Specifications
Context Window200K
Max Output8K
ReleasedNov 2025
API✓
Pricing (per 1M)
In / Out
$5/ $25
Key Features
State-of-the-art reasoningAdvanced code generationComplex problem solvingMulti-language supportVision capabilities
Strengths
- ✓More affordable than 4.1
- ✓Superior reasoning abilities
- ✓Excellent at complex tasks
- ✓Most advanced Claude model
Weaknesses
- ✗Higher cost
- ✗Slower response times
- ✗Overkill for simple tasks
Agent Support
No known agents
Claude 3.7 Sonnet
Description
Enhanced Sonnet model with improved capabilities
Specifications
Context Window200K
Max Output8K
ReleasedDec 2024
API✓
Pricing (per 1M)
In / Out
$3/ $15
Key Features
Enhanced reasoningBetter code generationImproved instruction followingMulti-language support
Strengths
- ✓Balanced performance
- ✓Good context handling
- ✓Reliable outputs
- ✓Improved over 3.5 Sonnet
Weaknesses
- ✗More expensive than Haiku
- ✗Not as powerful as Opus
- ✗Limited availability