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Gemini 3.1 Pro Preview vs Gemini 3.5 Flash

List rates and scores as of . Cheaper is lower $/MTok. Higher scores win. Input edge: Gemini 3.5 Flash Output edge: Gemini 3.5 Flash

Model A

Gemini 3.1 Pro Preview

google/gemini-3.1-pro-preview
reasoningtools
  • List input$2
  • List output$12
  • Context1.0M
  • Offers12
  • Arena text1485
  • AA intelligence46.5
  • AA coding68.8
  • AA agentic21.4

On plans: Copilot Business, Copilot Enterprise, Copilot Pro, Copilot Pro+

Model B

Gemini 3.5 Flash

google/gemini-3.5-flash
reasoningtools
  • List input$1.50
  • List output$9
  • Context1.0M
  • Offers11
  • Arena text
  • AA intelligence50.2
  • AA coding70.1
  • AA agentic37.4

On plans: Cursor Business, Cursor Pro, Cursor Ultra, Gemini Code Assist Enterprise

Score sources on /benchmarks.