Google: Nano Banana Pro (Gemini 3 Pro Image Preview) API pricing on OpenRouter
- id
- google/gemini-3-pro-image-preview
- First seen 2026-11-07 13:53 UTC
- Open on openrouter.ai/google/gemini-3-pro-image-preview
RouteOfficialGoogle AI Studio
Basis: OpenRouter endpoints: Google AI Studio (google-ai-studio): official Archived copy
Current prices
Per million input tokens5
| Variant | USD | Platform’s own wording | Since |
|---|---|---|---|
| Image inputvia Google AI Studio · global/flex | $1/M in | input_image: 0.000001 USD / token | |
| Audio input | $2/M in | audio: 0.000002 / token | |
| Image inputvia Google AI Studio · global | $2/M in | input_image: 0.000002 USD / token | |
| Image input | $2/M in | image: 0.000002 / token | |
| Standard | $2/M in | prompt: 0.000002 / token |
Per million output tokens5
| Variant | USD | Platform’s own wording | Since |
|---|---|---|---|
| Text | $12/M out | completion: 0.000012 / token | |
| Reasoning | $12/M out | internal_reasoning: 0.000012 / token | |
| via Google AI Studio · global/flex | $60/M out | output_image: 0.00006 USD / token | |
| via Google AI Studio · global | $120/M out | output_image: 0.00012 USD / token | |
| Standard | $120/M out | image_output: 0.00012 / token |
Per million cached input tokens (read)2
| Variant | USD | Platform’s own wording | Since |
|---|---|---|---|
| Standard | $0.2/M cache read | input_audio_cache: 0.0000002 / token | |
| Standard | $0.2/M cache read | input_cache_read: 0.0000002 / token |
Per million cache-write tokens1
| Variant | USD | Platform’s own wording | Since |
|---|---|---|---|
| 5-min cache | $0.375/M cache write | input_cache_write: 0.000000375 / token |
Per run (default parameters)1
| Variant | USD | Platform’s own wording | Since |
|---|---|---|---|
| Web search | $0.014/run | web_search: 0.014 |
Change log
| When | Model · what it covers | Change |
|---|---|---|
| 2026-11-11 11:28 UTC | Unit changedFlaggedImage input | $0.000002/image → $2/M inimage: 0.000002 → image: 0.000002 / token |
Earlier versions
| Model · what it covers | USD | Platform’s own wording | Since |
|---|---|---|---|
| Image input | $0.000002/image | image: 0.000002 | 2026-11-07 13:53 UTC → 2026-11-11 11:28 UTC |
| Image inputvia Google AI Studio | $1/M in | input_image: 0.000001 USD / token | 2026-11-07 13:53 UTC → 2026-11-11 11:28 UTC |
| Image inputvia Google AI Studio | $2/M in | input_image: 0.000002 USD / token | 2026-11-07 13:53 UTC → 2026-11-11 11:28 UTC |
| $12/M out | completion: 0.000012 / token | 2026-11-07 13:53 UTC → 2026-11-11 11:28 UTC | |
| via Google AI Studio | $60/M out | output_image: 0.00006 USD / token | 2026-11-07 13:53 UTC → 2026-11-11 11:28 UTC |
| via Google AI Studio | $120/M out | output_image: 0.00012 USD / 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-pro-image-preview/endpointsLast read 11 min ago2 readsArchived copy
- openrouter.ai/api/v1/modelsLast read 11 min ago2 readsArchived copy