Google Gemini API 价格
快速结论
Google 的 Gemini 开发者 API 提供多模态的 Pro 与 Flash 模型，并按上下文长度分档定价。
| 模型 | 输入 /1M | 输出 /1M | 缓存输入 /1M | 上下文 |
|---|---|---|---|---|
 Gemini 3.1 Pro Gemini Developer API | $2.00 | $12.00 | $0.20 | 1,048,576 |
| Gemini 3.5 Flash Gemini Developer API | $1.50 | $9.00 | $0.15 | 1,048,576 |
| Gemini 3.1 Flash-Lite Gemini Developer API | $0.25 | $1.50 | $0.025 | 1,048,576 |
| Gemini 2.5 Pro Gemini Developer API | $1.25 | $10.00 | $0.125 | 1,048,576 |
| Gemini 2.5 Flash Gemini Developer API | $0.30 | $2.50 | $0.03 | 1,048,576 |
| Gemini 2.5 Flash-Lite Gemini Developer API | $0.10 | $0.40 | $0.01 | 1,048,576 |
| Imagen 4 Gemini API | — | — | — | up to 1080p / 2K / 4K, Fast/Standard/Ultra |
| Nano Banana Pro Gemini API | — | — | — | up to 1K / 2K / 4K (gemini-3-pro-image) |
| Nano Banana Gemini API | — | — | — | up to 1024² (gemini-2.5-flash-image) |
| Veo 3.1 Gemini API | — | — | — | 720p/1080p std, 4K premium; ~8s native |