gemini-3-flash vs gpt-5.2-2025-12-11
Pricing, Performance & Features Comparison
Gemini 3 Flash combines Gemini 3 Pro's reasoning capabilities with the Flash line's levels on latency, efficiency, and cost. It not only enables everyday tasks with improved reasoning, but is designed to tackle the most complex agentic workflows.
Input$0.5
Output$3
Latency (p50)1.6s
Output Limit66K
Function Calling
JSON Mode
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Input–
Output–
in$0.5out$3––
Latency (24h)
Success Rate (24h)
OpenAI’s December 2025 frontier model, still generally available as the value option of the GPT-5.x line.
Input$1.8
Output$14
Latency (p50)1s
Output Limit128K
Function Calling
JSON Mode
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InputText, Image
OutputText
in$1.8out$14cache$0.18–