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Gemini 3.1 Pro Google Preview GPT-5.6 Terra OpenAI
Input $2.00 $2.00
Output $12.00 $12.00
Blended $4.50 $4.50
Context window 1.05M 1.05M
Max output 66k 128k
Output speed 126.5 124.9
Quality 57.2 62
Reasoning 70.6 67.7
Coding 67.8 65.4
Value 3.1 3.4
Vision ✓ ✓
Reasoning ✓ ✓
Tool calling ✓ ✓
Structured output ✓ ✓
Prompt caching ✓ ✓
Batch API ✓ ✓
Licence Proprietary Proprietary
API model id gemini-3.1-pro-preview gpt-5.6-terra

At a glance

Input price, per million tokens
  1. Gemini 3.1 ProGoogle$2.00
  2. GPT-5.6 TerraOpenAI$2.00
Output price, per million tokens
  1. Gemini 3.1 ProGoogle$12.00
  2. GPT-5.6 TerraOpenAI$12.00
Context window
  1. Gemini 3.1 ProGoogle1.05M
  2. GPT-5.6 TerraOpenAI1.05M

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