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Gemini 3.1 Pro Google Preview GPT-5.3-Codex OpenAI Deprecated
Input $2.00 $1.75
Output $12.00 $14.00
Blended $4.50 $4.81
Context window 1.05M 400k
Max output 66k 128k
Output speed 126.5 84.2
Quality 57.2 79.7
Reasoning 70.6 67
Coding 67.8 67.1
Value 3.1 4.1
Vision ✓ ✓
Reasoning ✓ ✓
Tool calling ✓ ✓
Structured output ✓ ✓
Prompt caching ✓ ✓
Batch API ✓ ✓
Licence Proprietary Proprietary
API model id gemini-3.1-pro-preview gpt-5.3-codex

At a glance

Input price, per million tokens
  1. Gemini 3.1 ProGoogle$2.00
  2. GPT-5.3-CodexOpenAI$1.75
Output price, per million tokens
  1. Gemini 3.1 ProGoogle$12.00
  2. GPT-5.3-CodexOpenAI$14.00
Context window
  1. Gemini 3.1 ProGoogle1.05M
  2. GPT-5.3-CodexOpenAI400k

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