Image generation model
Gemini Nano Banana 2.1
Gemini Nano Banana 2.1 is Google's image generation and conversational editing model, released on 6 October 2026 as an update to Nano Banana 2 (Gemini 3.1 Flash Image). It produces images at 1K, 2K and 4K, supports up to 14 reference images and search grounding, and is priced lower per image than its predecessor.
Last reviewed 28 Oct 2026 · by Google DeepMind
Facts at a glance
| Developer | Google DeepMind |
|---|---|
| Released | 6 October 2026 (generally available) source |
| API name | gemini-nano-banana-2.1 source |
| Token limits | 131,072 input tokens; 32,768 output tokens source |
| Image price | $0.0336 per 1K image, $0.0504 per 2K image, $0.113 per 4K image (standard) source |
| Token price | $1.50 per 1M input tokens; $30 per 1M image output tokens; $7.50 per 1M text and thinking output tokens source |
| Reference images | Up to 14 (up to 4 characters and 10 objects) source |
| Modalities | Text, image, video and PDF input; image and text output |
What Nano Banana 2.1 is used for
Google describes Nano Banana 2.1 as a high-efficiency model for generating images and editing them over several conversational turns. The model page lists better visual quality, text rendering and infographic layout, fixed tiling artifacts on wide and tall aspect ratios such as 1:8 and 8:1, grounding with Google Web and Image Search, and three thinking levels. It is the faster, cheaper counterpart to Nano Banana Pro (Gemini 3 Pro Image).
Questions people ask
- When was Nano Banana 2.1 released?
- Google released it as generally available in the Gemini API on 6 October 2026 and deprecated Nano Banana 2 (gemini-3.1-flash-image) the same day.
- How much does a Nano Banana 2.1 image cost?
- About $0.0336 for a 1K image, $0.0504 for 2K and $0.113 for 4K at standard rates, per the Gemini API pricing page. Batch is half price.