Gemini 3.1 Pro is Google’s flagship model for deep reasoning, complex problem solving, and reliable agentic workflows. Its key advantage is a context window of up to 1,048,576 input tokens and 65,536 output tokens, allowing a single request to retain large document sets, repositories, images, audio, video, and PDFs. The Gemini Flash line targets faster, more scalable workloads. Choose Gemini Pro for long research, large-codebase analysis, multimodal understanding, planning, and tool-using agents.
| Model | Tags | Input / 1M | Output / 1M | Cache / 1M | Context |
|---|---|---|---|---|---|
gemini-3-flash
|
- | $0.50 | $3.00 | $0.05 | 1M |
gemini-3.1-pro
|
- | $2.00 | $12.00 | $0.20 | 1M |
gemini-3.5-flash
|
- | $1.50 | $9.00 | $0.15 | 1M |