Nano Banana (Gemini 2.5 Flash Image)
Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding. It is capable of image generation, edits, and multi-turn conversations. Aspect ratios can be controlled with the [image_config API Parameter](https://openrouter.ai/docs/features/multimodal/image-generation#image-aspect-ratio-configuration)
Context window
This model accepts 33K tokens in one request (~25K words of text).
What fits in one request
- FitsShort documentAbout 1,500 words of text
- Won't fitLong documentAbout 37K words of text
- Won't fitSmall codebaseAbout 150K words of text
- Won't fitFull novelAbout 375K words of text
Specifications
Context size, pricing, and release info in one place.
- Context window
- 32,768 tokens (33K)
- Max output tokens
- 32,768 tokens (33K)
- Speed tier
- fast
- Provider
- Model family
- Gemini 2
- Release date
- Oct 2025
Capabilities
See which features this model supports, such as vision, tools, and streaming.
- Vision
- Accepts image inputs alongside text
- Supported
- Streaming
- Returns tokens as they are generated
- Supported
- Prompt caching
- Reuse repeated prompt prefixes cheaply
- Supported
- Tool use
- Can call external tools and APIs
- Not supported
- Function calling
- Structured function call interface
- Not supported
- Extended thinking
- Shows its chain-of-thought reasoning
- Not supported
- Web search
- Can browse the web during a request
- Not supported
- Batch API
- Process many requests asynchronously
- Not supported
Best for
Jump to a guide or ranking that matches each workload.
Compare Nano Banana (Gemini 2.5 Flash Image)
Open a side-by-side comparison with one click.
- Nano Banana (Gemini 2.5 Flash Image) vs Gemma 7b It
Nano Banana (Gemini 2.5 Flash Image) has 300% larger context window
- Nano Banana (Gemini 2.5 Flash Image) vs Jp Anthropic Claude Sonnet 4 6
Jp Anthropic Claude Sonnet 4 6 has 2951% larger context window
- Nano Banana (Gemini 2.5 Flash Image) vs Amazon Titan Text Express
Amazon Titan Text Express has 28% larger context window
- Nano Banana (Gemini 2.5 Flash Image) vs Amazon Titan Text Premier
Amazon Titan Text Premier has 28% larger context window
- Nano Banana (Gemini 2.5 Flash Image) vs Amazon Titan Text Lite
Amazon Titan Text Lite has 28% larger context window
- Nano Banana (Gemini 2.5 Flash Image) vs Codellama 34b Instruct
Nano Banana (Gemini 2.5 Flash Image) has 700% larger context window
Frequently asked questions
Short answers about context size and how this model behaves.
More from Google
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