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Gemini 2.0 Flash vs GPT-4o: Pricing, Benchmarks & Verdict (2026)

Verdict

Gemini 2.0 Flash is significantly cheaper at $0.10/$0.40 per million tokens vs $2.50/$10.00. GPT-4o is stronger for coding with a coding ELO of 1265 vs 1240. Gemini 2.0 Flash is faster at 160 tokens/sec vs 95 tokens/sec. Gemini 2.0 Flash offers a larger 1049K context window vs 128K.

Side-by-Side Comparison

FeatureGemini 2.0 FlashGPT-4o
ProviderGoogleOpenAI
Input Price / 1M tokens$0.100$2.50
Output Price / 1M tokens$0.400$10.00
Context Window1.048576M128K
Max Output Tokens8,19216,384
Arena ELO1,2601,260
Coding ELO1,2401,265
TTFT (ms)120230
Tokens/sec16095
MultimodalYesYes
JSON ModeYesYes
Function CallingYesYes
VisionYesYes
When to Use Gemini 2.0 Flash

Choose Gemini 2.0 Flash when you need: extremely fast inference, 1m context window at very low cost, strong multimodal support, great for real-time applications. It excels at chatbots, high-volume, cost-sensitive, multimodal tasks. It is also the more cost-effective option between the two. Its 1049K context window is larger, making it better for long-document processing.

Strengths:

  • Extremely fast inference
  • 1M context window at very low cost
  • Strong multimodal support
  • Great for real-time applications

Best for:

chatbotshigh-volumecost-sensitivemultimodal
When to Use GPT-4o

Choose GPT-4o when you need: fast response times, strong multimodal capabilities, code execution support. It excels at general-purpose, multimodal, function-calling tasks.

Strengths:

  • Fast response times
  • Strong multimodal capabilities
  • Code execution support

Best for:

general-purposemultimodalfunction-calling

Frequently Asked Questions

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