Gemini 3.1 Flash Image
Key facts · verified Oct 28, 2026
Gemini 3.1 Flash Image is a Google image generation model released on 28 May 2026. Pricing: $0.067 per 1K image ($0.045 at 0.5K) via the Gemini API; half price in batch. It ranks #11 on LMArena's text-to-image leaderboard (Elo 1257, read 1 Nov 2026). Source: ai.google.dev.
Google's Gemini 3.1 Flash Image model, also called Nano Banana 2 (gemini-3.1-flash-image), released on the Gemini API on May 28, 2026. It generates and edits images from 512px to 4K, accepts up to 14 reference images, and supports multi-turn editing. Every image it outputs carries a SynthID watermark. Google's image-generation docs recommend Nano Banana 2.1 (gemini-nano-banana-2.1, released 6 October 2026) for all new projects.
$0.067 per 1K image ($0.045 at 0.5K) via the Gemini API; half price in batch
Not published
Key Features
Full Specifications
$0.067 per 1K image ($0.045 at 0.5K) via the Gemini API; half price in batch | |
|---|---|
| Identity | |
| Developer | |
| Released | May 2026 |
| Status | GA. No shutdown date announced; Google recommends Nano Banana 2.1 for new projects. |
| Cost | |
| Price per image | $0.045 (0.5K), $0.067 (1K); batch $0.022 / $0.034 |
| Free tier | Not available |
| Capacity | |
| Max resolution | 4K (512px, 1K, 2K, 4K) |
| Aspect ratios | 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 |
| Capability | |
| Image-to-image | Yes — up to 14 reference images |
| Text rendering | Yes — Google documents legible, stylized text |
| Character consistency | Yes — up to 4 character reference images |
| Access | |
| API | Yes — Gemini API |
| Measured quality | |
| LMArena Elo | 1257 (checked Nov 2026) |
| LMArena rank | Rank 11 |