Grok Code Fast 1 vs Claude Opus 4.1
Grok Code Fast 1 offers 256K tokens context vs 200K tokens, Grok Code Fast 1 is more cost-effective, Claude Opus 4.1 supports vision. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Claude Opus 4.1
OpenCode Zen
200K tokens context • $15.00 / $75.00 per 1M tokens
View full specifications →Detailed Comparison
Specification
Grok Code Fast 1
Claude Opus 4.1
Provider
OpenCode Zen
OpenCode Zen
Context Window
256K tokens
200K tokens
Max Output Tokens
256K tokens
32K tokens
Input Pricing (per 1M tokens)
Free
$15.00
Output Pricing (per 1M tokens)
Free
$75.00
Release Date
Aug 2025
Aug 2025
Capabilities
Capability
Grok Code Fast 1
Claude Opus 4.1
Text Generation
Function Calling
Advanced Reasoning
File Attachments
Vision
Which Model Should You Choose?
Choose Grok Code Fast 1 if:
- • You need a larger context window
- • Cost efficiency is a priority