Gemini 1.5 Flash vs Grok 3

Performance benchmarks + pricing comparison — updated April 2026

Gemini 1.5 Flash

Google

Cheapest Gemini model. Good for high-volume, simple tasks.

Input$0.075/M
Output$0.300/M
Context1M tokens
Best ForHigh-volume simple tasks, cost optimization

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
Benchmark70/100

Cost Comparison by Scenario

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

ScenarioGemini 1.5 FlashGrok 3Savings
Small Script (1K lines) $0.01 $0.55 Gemini 1.5 Flash saves $0.54 (98%)
Medium Feature (10K lines) $0.09 $4.05 Gemini 1.5 Flash saves $3.96 (98%)
Large Project (50K lines) $0.43 $20.25 Gemini 1.5 Flash saves $19.82 (98%)
Code Review (5K lines) $0.02 $0.90 Gemini 1.5 Flash saves $0.88 (98%)

Verdict

Gemini 1.5 Flash wins on both price and performance — $0.075/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