Nano Banana Pro
Summary
Nano Banana Pro is a proprietary language model from Google DeepMind, released on 28 May 2026. It accepts text and images and generates text and images, with a 66K-token context window and up to 33K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $2 per million input tokens and $12 per million output tokens (Vercel AI Gateway), across 4 providers we track.
Nano Banana Pro for higher-fidelity image generation and design-heavy edits
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | Google DeepMind |
|---|---|
| Release date | 28 May 2026 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Proprietary (API only) [models.dev] |
| Context window | 66K (65,536 tokens) [models.dev] |
| Max output | 33K tokens [models.dev] |
| Knowledge cutoff | Jan 2025 [models.dev] |
| Input | Text and images [models.dev] |
| Output | Text and images [models.dev] |
| Reasoning mode | Yes [models.dev] |
| Tool calling | No [models.dev] |
Nano Banana Pro API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| Gemini API gemini-3-pro-image | $2 | $120 | – | 66K | models.dev, 4 Oct 2026 |
| Gemini API gemini-3-pro-image-preview | $2 | $120 | – | 131K | models.dev, 4 Oct 2026 |
| Google Vertex AI gemini-3-pro-image | $2 | $120 | $0.20 | 66K | models.dev, 4 Oct 2026 |
| Vercel AI Gateway google/gemini-3-pro-image | $2 | $12 | $0.20 | 66K | models.dev, 4 Oct 2026 |
| OpenRouter google/gemini-3-pro-image | $2 | $12 | $0.20 | 66K | OpenRouter, 4 Oct 2026 |
| OpenRouter google/gemini-3-pro-image-preview | $2 | $12 | $0.20 | 66K | OpenRouter, 4 Oct 2026 |
Frequently asked questions
What is the context window of Nano Banana Pro?
Nano Banana Pro has a context window of 65,536 tokens (66K) and can generate up to 32,768 tokens in a single response, according to models.dev.
How much does the Nano Banana Pro API cost?
Through Gemini API, Nano Banana Pro costs $2 per million input tokens and $120 per million output tokens. The lowest listed price is $2 input / $12 output through Vercel AI Gateway. Prices last verified 4 Oct 2026.
Is Nano Banana Pro open source?
No. Nano Banana Pro is a proprietary model; Google DeepMind has not released its weights. It is available through APIs including Gemini API, Google Vertex AI, Vercel AI Gateway, OpenRouter.
When was Nano Banana Pro released?
Google DeepMind released Nano Banana Pro on 28 May 2026, according to models.dev.
Which providers offer Nano Banana Pro?
We track Nano Banana Pro on 4 providers: Gemini API, Google Vertex AI, Vercel AI Gateway, OpenRouter.
Change history
No changes detected since we started tracking this model. We re-check every source daily.
Sources
- https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml
- https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image-preview.toml
- https://github.com/sst/models.dev/blob/dev/providers/google-vertex/models/gemini-3-pro-image.toml
- https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3-pro-image.toml
- https://openrouter.ai/google/gemini-3-pro-image
- https://openrouter.ai/google/gemini-3-pro-image-preview