LLMversus

Gemini 2.5 Flash vs GPT-4o Mini: Pricing, Benchmarks & Verdict (2026)

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

⚡ Quick Answer

Compare Gemini 2.5 Flash and GPT-4o Mini across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGemini 2.5 FlashGPT-4o Mini
ProviderGoogleOpenAI
Input Price / 1M tokens$0.300$0.150
Output Price / 1M tokens$2.50$0.600
Context Window
1M
128K
Max Output Tokens
8,192
16,384
Arena ELO
1,270
1,098
Coding ELO
1,260
1,098
TTFT (ms)
150
180
Tokens/sec
100
120
MultimodalYesYes
JSON ModeYesYes
Function CallingYesYes
VisionNoYes
When to Use Gemini 2.5 Flash

Gemini 2.5 Flash excels at multimodal, general-purpose, coding tasks.

Strengths:

  • Latest Gemini model
  • Improved reasoning
  • Strong multimodal

Best for:

multimodalgeneral-purposecoding
When to Use GPT-4o Mini

GPT-4o Mini excels at chatbots, lightweight-tasks, cost-sensitive tasks.

Strengths:

  • Extremely affordable pricing
  • Fast response times
  • Strong for its price tier
  • Good multimodal support

Best for:

chatbotslightweight-taskscost-sensitive

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