Model Comparison
Claude Sonnet 4.5Grok Code Fast 1
Let's see who can write code better - Claude Sonnet 4.5 or Grok Code Fast 1
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 Code Fast 1
Description
Fast code generation model from xAI
Specifications
Context Window128K
Max Output8K
ReleasedDec 2024
API✓
Pricing (per 1M)
In / Out
$0.2/ $1.5
Key Features
Fast code generationProgramming expertiseQuick responses
Strengths
- ✓Fast inference
- ✓Code-optimized
- ✓Cost-effective for coding
Weaknesses
- ✗Limited general knowledge
- ✗Focused on code only
Agent Support
No known agents