Model Comparison
Claude Opus 4.5Grok 4
Let's see who can write code better - Claude Opus 4.5 or Grok 4
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
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