Gemini 3.1 Flash Image Preview (Nano Banana 2)
Gemini 3.1 Flash Image Preview (Nano Banana 2) Preview (Nano Banana 2) improves visual output quality at flash-tier speed, adding Google Image Search grounding, configurable thinking levels, and new resolution and aspect ratio options including 512p and ultra-wide formats. Your use subject to Google's Terms & Privacy Policies.
Image GenImplicit CachingReasoningVision (Image)Web Search
index.ts
import { generateText } from 'ai'
const result = await generateText({ model: 'google/gemini-3.1-flash-image-preview', prompt: 'Render a picture of a red balloon.',});More models by Google
| Model |
|---|
| 1M | 1.0s | 387tps | $0.30/M | $2.50/M | Read:$0.03/M Write:— | $14/K + input costs | +3 |   | 07/21/2026 | |||
| 1M | 2.2s | 195tps | $1.50/M | $7.50/M | Read:$0.15/M Write:— | $14/K + input costs | +3 | | 07/21/2026 | |||
| 1M | 0.4s | 416tps | $0.25/M | $1.50/M | Read:$0.03/M Write:— | $14/K + input costs | +3 | | 05/07/2026 | |||
| 1M | 3.0s | 118tps | $2/M | $12/M | Read: $0.2/M Write: — | $14/K + input costs | +3 | | 02/19/2026 | |||
| 1M | 0.7s | 184tps | $0.50/M | $3/M | Read: $0.05/M Write: — | $14/K + input costs | +3 | | 12/17/2025 | |||
| 1M | 0.2s | 345tps | $0.10/M | $0.40/M | Read:$0.01/M Write:— | $35/K + input costs | +3 | | 06/17/2025 |