Grok 3 Mini vs Perplexity Sonar Reasoning Pro

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

Perplexity Sonar Reasoning Pro

Perplexity

Perplexity's most advanced search model with deep reasoning. Complex research tasks with cited sources.

Input$5.00/M
Output$20.00/M
Context128K tokens
Best ForDeep research, academic analysis, complex investigations

Cost Comparison by Scenario

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

ScenarioGrok 3 MiniPerplexity Sonar Reasoning ProSavings
Small Script (1K lines) $0.03 $0.78 Grok 3 Mini saves $0.75 (97%)
Medium Feature (10K lines) $0.21 $5.75 Grok 3 Mini saves $5.54 (96%)
Large Project (50K lines) $1.02 $28.75 Grok 3 Mini saves $27.73 (96%)
Code Review (5K lines) $0.07 $1.38 Grok 3 Mini saves $1.31 (95%)

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