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Gemini 3.1 Pro Preview Custom Tools vs GPT-4

List-price comparison · Gemini 3.1 Pro Preview Custom Tools details · GPT-4 details

For a typical workload (100,000 requests / mo), Gemini 3.1 Pro Preview Custom Tools costs 88% less $720.00/mo vs $6,000.00/mo.

 Gemini 3.1 Pro Preview Custom ToolsGPT-4
Input / 1M tokens$2.00$30.00
Output / 1M tokens$12.00$60.00
Typical request (1,200 in + 400 out)$0.0072$0.06
Context window1,048,756 tokens8,191 tokens
Max output65,536 tokens4,096 tokens
TierFlagshipFlagship
ProviderGoogleOpenAI

Projected monthly cost

Rows open both models in the calculator — adjust volume and token counts there.

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Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.