Gemini Nano Banana 2.1
Key facts · verified Oct 18, 2026
Gemini Nano Banana 2.1 is a Google image generation model released on 6 Oct 2026. Pricing: $0.0336 (1K) / $0.0504 (2K) / $0.113 (4K) per image - Gemini API paid tier. Its context window is 131,072 tokens. Source: ai.google.dev.
Gemini Nano Banana 2.1 (gemini-nano-banana-2.1) is Google's image generation and conversational editing model, generally available in the Gemini API since October 6, 2026. Google describes it as an update to Nano Banana 2 (Gemini 3.1 Flash Image) with improved visual quality, prompt adherence, multi-turn character consistency and text rendering, at 1K, 2K and 4K, including wide and panoramic aspect ratios such as 1:4, 4:1, 1:8 and 8:1. It takes text, images, video and PDFs and returns images and text. On the paid tier an output image costs about $0.034 at 1K, $0.050 at 2K and $0.113 at 4K.
$0.0336 (1K) / $0.0504 (2K) / $0.113 (4K) per image - Gemini API paid tier
131,072 tokens
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Full Specifications
$0.0336 (1K) / $0.0504 (2K) / $0.113 (4K) per image - Gemini API paid tier | |
|---|---|
| Identity | |
| Developer | |
| Released | Oct 2026 |
| Status | GA |
| Licence | Proprietary |
| Self-hostable | No |
| Cost | |
| Price per image | $0.0336 (1K, 1024x1024), $0.0504 (2K), $0.113 (4K); Batch half price |
| Free tier | Not on the Gemini API free tier |
| Capacity | |
| Max resolution | 4K (4096x4096) |
| Aspect ratios | Includes wide and panoramic 1:4, 4:1, 1:8 and 8:1 |
| Access | |
| API | Yes (Gemini API) |