Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) API pricing on OpenRouter
- id
- google/gemini-3.1-flash-image-preview
- First seen 2026-11-07 13:53 UTC
- Open on openrouter.ai/google/gemini-3.1-flash-image-preview
RouteOfficialGoogle AI Studio
Basis: OpenRouter endpoints: Google AI Studio (google-ai-studio): official Archived copy
Current prices
Per million input tokens1
| Variant | USD | Platform’s own wording | Since |
|---|---|---|---|
| Standard | $0.5/M in | prompt: 0.0000005 / token |
Per million output tokens3
| Variant | USD | Platform’s own wording | Since |
|---|---|---|---|
| Text | $3/M out | completion: 0.000003 / token | |
| Standard | $60/M out | image_output: 0.00006 / token | |
| Standard | $60/M out | output_image: 0.00006 USD / token |
Per run (default parameters)1
| Variant | USD | Platform’s own wording | Since |
|---|---|---|---|
| Web search | $0.014/run | web_search: 0.014 |
Change log
No changes yet. A platform’s first run sets the baseline; changes appear from the next one.
Earlier versions
| Model · what it covers | USD | Platform’s own wording | Since |
|---|---|---|---|
| $3/M out | completion: 0.000003 / token | 2026-11-07 13:53 UTC → 2026-11-11 11:28 UTC |
Where these prices come from
Read from the platform’s public pages and APIs. Every read is archived, so any price here can be checked against what the platform showed at the time.
- openrouter.ai/api/v1/images/models/google/gemini-3.1-flash-image-preview/endpointsLast read 26 min ago2 readsArchived copy
- openrouter.ai/api/v1/modelsLast read 26 min ago2 readsArchived copy