Model Comparison
Claude Sonnet 4.5Grok 4
Let's see who can write code better - Claude Sonnet 4.5 or Grok 4
Model Information
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
Grok 4
Description
Advanced flagship model from xAI with superior reasoning
Specifications
Context Window256K
Max Output16K
ReleasedJul 2024
API✓
Pricing (per 1M)
In / Out
$3/ $15
Key Features
Advanced reasoningLarge context windowSuperior performance
Strengths
- ✓Excellent reasoning abilities
- ✓Very large context
- ✓High-quality outputs
Weaknesses
- ✗Higher cost
- ✗Slower inference
Agent Support
No known agents