Nano Banana
Summary
Nano Banana is a proprietary language model from Google DeepMind, released on 26 Aug 2025. It accepts text and images and generates text and images, with a 33K-token context window and up to 33K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.30 per million input tokens and $2.50 per million output tokens (OpenRouter), across 4 providers we track.
Nano Banana image model for fast generation, edits, and character-consistent assets
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | Google DeepMind |
|---|---|
| Release date | 26 Aug 2025 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Proprietary (API only) [models.dev] |
| Context window | 33K (32,768 tokens) [models.dev] |
| Max output | 33K tokens [models.dev] |
| Knowledge cutoff | Jun 2024 [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 API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| Gemini API gemini-2.5-flash-image | $0.30 | $30 | $0.07 | 33K | models.dev, 4 Oct 2026 |
| Google Vertex AI gemini-2.5-flash-image | $0.30 | $30 | – | 33K | models.dev, 4 Oct 2026 |
| OpenRouter google/gemini-2.5-flash-image | $0.30 | $2.50 | $0.03 | 33K | OpenRouter, 4 Oct 2026 |
| Vercel AI Gateway google/gemini-2.5-flash-image | $0.30 | $2.50 | $0.03 | 33K | models.dev, 4 Oct 2026 |
Frequently asked questions
What is the context window of Nano Banana?
Nano Banana has a context window of 32,768 tokens (33K) and can generate up to 32,768 tokens in a single response, according to models.dev.
How much does the Nano Banana API cost?
Through Gemini API, Nano Banana costs $0.30 per million input tokens and $30 per million output tokens. The lowest listed price is $0.30 input / $2.50 output through OpenRouter. Prices last verified 4 Oct 2026.
Is Nano Banana open source?
No. Nano Banana is a proprietary model; Google DeepMind has not released its weights. It is available through APIs including Gemini API, Google Vertex AI, OpenRouter, Vercel AI Gateway.
When was Nano Banana released?
Google DeepMind released Nano Banana on 26 Aug 2025, according to models.dev.
Which providers offer Nano Banana?
We track Nano Banana on 4 providers: Gemini API, Google Vertex AI, OpenRouter, Vercel AI Gateway.
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-2.5-flash-image.toml
- https://github.com/sst/models.dev/blob/dev/providers/google-vertex/models/gemini-2.5-flash-image.toml
- https://openrouter.ai/google/gemini-2.5-flash-image
- https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-2.5-flash-image.toml