Cracked AI Engineering

Grok Code Fast 1 vs Claude Opus 4

Grok Code Fast 1 offers 256K tokens context vs 80K tokens, Claude Opus 4 supports vision. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

Grok Code Fast 1

GitHub Copilot

256K tokens context • Pricing not available

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Claude Opus 4

GitHub Copilot

80K tokens context • Pricing not available

View full specifications →

Detailed Comparison

Specification
Grok Code Fast 1
Claude Opus 4
Provider
GitHub Copilot
GitHub Copilot
Context Window
256K tokens
80K tokens
Max Output Tokens
10K tokens
16K tokens
Release Date
Aug 2025
May 2025

Capabilities

Capability
Grok Code Fast 1
Claude Opus 4
Text Generation
Function Calling
Advanced Reasoning
Vision
File Attachments

Which Model Should You Choose?

Choose Grok Code Fast 1 if:

  • • You need a larger context window

Choose Claude Opus 4 if: