MajorGoogle AINew Launchgemini-3.1-flash-image-previewVerified
Nano Banana 2 introduced as Gemini 3.1 Flash Image Preview
Google announced Nano Banana 2 on February 18, 2026 and exposed the API billing entry as Gemini 3.1 Flash Image Preview. Official Gemini API pricing lists $0.30 per 1M text/image/video input tokens, $1.00 per 1M audio input tokens, $2.50 per 1M output tokens, and $0.039 per generated image.
Feb 18, 2026Views:2Effective: Feb 18, 2026
Impact Assessment
Cost2
Reliability1
Migration0
Quality5
Compliance0
What changed
- New Google image model entry: gemini-3.1-flash-image-preview
- Launch story: Nano Banana 2
- Pricing: $0.30 / MTok for text-image-video input, $1.00 / MTok for audio input, $2.50 / MTok output text, and $0.039 per output image
- Status: preview
Recommended actions
- Run a small benchmark for image generation and image editing prompts you already use in production.
- Add cost guardrails for image-heavy workflows because image output billing is per generated image, not only per token.
Changes
| Field | Before | After |
|---|---|---|
| status | not_listed | preview |
| api_model | — | gemini-3.1-flash-image-preview |
| input_text_image_video_per_1m | — | 0.3 |
| input_audio_per_1m | — | 1 |
| output_text_per_1m | — | 2.5 |
| output_image_per_unit | — | 0.039 |
Recommended Actions
Recommended
Benchmark Gemini 3.1 Flash Image Preview against your current image generation and editing baseline with a fixed prompt set.
Recommended
Track preview pricing and output-image volume separately before broad rollout, because image output is billed per generated image.
Sources
blog
Nano Banana 2 is here
Nano Banana 2 is available in the Gemini app and Google AI Studio.
pricing
Gemini API pricing: Gemini 3.1 Flash Image Preview
Pricing lists $0.30 input, $2.50 output, and $0.039 image output.
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