Key Takeaways
Claude Opus 4.5 wins:
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
Grok Code Fast 1 wins:
- Cheaper input tokens
- Cheaper output tokens
- Larger context window
- Faster response time
Price Advantage
Grok Code Fast 1
Benchmark Advantage
Claude Opus 4.5
Context Window
Grok Code Fast 1
Speed
Grok Code Fast 1
Pricing Comparison
Benchmark Comparison
Context & Performance
Capabilities
Feature Comparison
| Feature | Claude Opus 4.5 | Grok Code Fast 1 |
|---|---|---|
Vision (Image Input) | ||
Tool/Function Calls | ||
Reasoning Mode | ||
Audio Input | ||
Audio Output | ||
PDF Input | ||
Prompt Caching | ||
Web Search |
License & Release
| Property | Claude Opus 4.5 | Grok Code Fast 1 |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Anthropic | Xai |
| Released | Nov 2025 | Aug 2025 |
Claude Opus 4.5 Modalities
Input
fileimagetext
Output
text
Grok Code Fast 1 Modalities
Input
text
Output
text