LLMversus

Gemini 1.5 Flash vs Grok 3-mini: Pricing, Benchmarks & Verdict (2026)

Pricing verified Sep 14, 2026By LLMversusUpdated September 17, 2026View methodology

⚡ Quick Answer

Compare Gemini 1.5 Flash and Grok 3-mini across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGemini 1.5 FlashGrok 3-mini
ProviderGooglexAI
Input Price / 1M tokens$0.075$0.300
Output Price / 1M tokens$0.300$0.500
Context Window
1M
128K
Max Output Tokens
8,192
4,096
Arena ELO
1,190
1,175
Coding ELON/A1,190
TTFT (ms)
150
130
Tokens/sec
100
140
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use Gemini 1.5 Flash

Gemini 1.5 Flash excels at multimodal, fast-inference, cost-effective tasks.

Strengths:

  • Super cheap
  • 1M context window
  • Fast multimodal processing

Best for:

multimodalfast-inferencecost-effective
When to Use Grok 3-mini

Grok 3-mini excels at cost-effective, general-purpose tasks.

Strengths:

  • Very cheap
  • Fast
  • Large context

Best for:

cost-effectivegeneral-purpose

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