# Nano Banana Pro

> 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.

Source page: https://www.aimodel.directory/models/gemini-3-pro-image
Last verified: 4 Oct 2026

## Specifications

- **Developer:** Google DeepMind
- **Release date:** 28 May 2026 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Status:** Generally available (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Weights:** Proprietary (API only) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Context window:** 66K (65,536 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Max output:** 33K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Knowledge cutoff:** Jan 2025 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Input:** Text and images (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Output:** Text and images (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Reasoning mode:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)
- **Tool calling:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/gemini-3-pro-image.toml)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| Gemini API | $2 | $120 | – | 66K |
| Gemini API | $2 | $120 | – | 131K |
| Google Vertex AI | $2 | $120 | $0.20 | 66K |
| Vercel AI Gateway | $2 | $12 | $0.20 | 66K |
| OpenRouter | $2 | $12 | $0.20 | 66K |
| OpenRouter | $2 | $12 | $0.20 | 66K |

## FAQ

### 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.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Nano Banana Pro", https://www.aimodel.directory/models/gemini-3-pro-image