aiAI Calculator Pro

Gemini 2.5 Pro vs GPT-5

Cost and capability comparison. For a sample workload of 1,000 input and 500 output tokens across 100,000 requests/month, Gemini 2.5 Pro is cheaper by about $0.0000/month.

Gemini 2.5 ProGPT-5
Providergoogleopenai
Input / 1M$1.25$1.25
Output / 1M$10.00$10.00
Per request (sample)$0.00625$0.00625
Monthly (sample)$625.00$625.00
Context window1,048,576128,000
VisionYesYes
ReasoningYesYes

FAQ

Which is cheaper, Gemini 2.5 Pro or GPT-5?

For a workload of 1,000 input and 500 output tokens over 100,000 requests/month, Gemini 2.5 Pro is cheaper, costing about $625.00/month versus $625.00/month.

What is the context window of Gemini 2.5 Pro and GPT-5?

Gemini 2.5 Pro supports 1,048,576 tokens, while GPT-5 supports 128,000 tokens.

Estimates for planning only. Verify current pricing with each provider.