Grok 3 vs Grok 4

Side-by-side pricing and cost comparison for AI coding projects.

Grok 3

xAI

xAI's flagship model. Strong general-purpose capability with real-time knowledge access through X platform integration.

Input$3.00/M
Output$15.00/M
Context128K tokens
Best ForGeneral coding, research tasks, current-event-aware applications

Grok 4

xAI

Next-generation xAI model with enhanced reasoning and coding capability. Competes with Claude Opus and o3 Pro tier.

Input$5.00/M
Output$25.00/M
Context256K tokens
Best ForComplex reasoning, advanced coding, enterprise applications

Cost Comparison by Scenario

ScenarioGrok 3Grok 4Savings
Small Script (1K lines) $0.55 $0.93 Grok 3 saves $0.37 (40%)
Medium Feature (10K lines) $4.05 $6.75 Grok 3 saves $2.70 (40%)
Large Project (50K lines) $20.25 $33.75 Grok 3 saves $13.50 (40%)
Code Review (5K lines) $0.90 $1.50 Grok 3 saves $0.60 (40%)

Verdict

Grok 3 is cheaper at $3.00/M input vs $5.00/M for Grok 4.

For a typical medium feature project, Grok 3 costs $4.05 compared to $6.75 for Grok 4.

However, Grok 4 may offer complex reasoning, advanced coding, enterprise applications — choose based on your specific needs.

Compare with Other Models