Grok 3 Mini vs Grok 4

Performance benchmarks + pricing comparison — updated April 2026

Grok 3 Mini

xAI

Cost-effective xAI model for high-volume tasks. Good balance of capability and affordability.

Input$0.300/M
Output$0.500/M
Context128K tokens
Best ForHigh-volume tasks, simple coding, cost-sensitive projects
Benchmark50/100

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

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioGrok 3 MiniGrok 4Savings
Small Script (1K lines) $0.03 $0.93 Grok 3 Mini saves $0.90 (97%)
Medium Feature (10K lines) $0.21 $6.75 Grok 3 Mini saves $6.54 (97%)
Large Project (50K lines) $1.02 $33.75 Grok 3 Mini saves $32.73 (97%)
Code Review (5K lines) $0.07 $1.50 Grok 3 Mini saves $1.44 (96%)

Verdict

Grok 3 Mini wins on both price and performance — $0.300/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models