Cracked AI Engineering

Code GD4 (alpha) vs Claude Opus 4.1

Code GD4 (alpha) is more cost-effective, Claude Opus 4.1 supports vision, Code GD4 (alpha) has open weights. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

Code GD4 (alpha)

OpenCode Zen

200K tokens context • $0.50 / $2.00 per 1M tokens

View full specifications →

Claude Opus 4.1

OpenCode Zen

200K tokens context • $15.00 / $75.00 per 1M tokens

View full specifications →

Detailed Comparison

Specification
Code GD4 (alpha)
Claude Opus 4.1
Provider
OpenCode Zen
OpenCode Zen
Context Window
200K tokens
200K tokens
Max Output Tokens
128K tokens
32K tokens
Input Pricing (per 1M tokens)
$0.50
$15.00
Output Pricing (per 1M tokens)
$2.00
$75.00
Release Date
Jan 2025
Aug 2025

Capabilities

Capability
Code GD4 (alpha)
Claude Opus 4.1
Text Generation
Function Calling
Advanced Reasoning
Vision
File Attachments

Which Model Should You Choose?

Choose Code GD4 (alpha) if:

  • • Cost efficiency is a priority
  • • You prefer open weights

Choose Claude Opus 4.1 if: