Model detail
Gemini Nano Banana 2.1
Nano Banana 2.1 (Gemini Nano Banana 2.1) is Google's image generation and editing model on the Flash tier, succeeding Nano Banana 2 and Nano Banana Pro. It improves product recontextualization, mask- and ink-based editing, and factual accuracy, and renders photorealistic skin tones, detailed materials, lighting, and coherent backgrounds. It accepts text and image inputs, returns images with optional text, and supports 1K, 2K, and 4K output plus extended aspect ratios via the [image_config API Parameter]
Model specs
- Model ID
-
gemini-nano-banana-2.1
- Context length
- –
- Max output
- 32.768K
- I/O modalities
- Released
- 2026-10
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API endpoints
One MixRoute gateway, OpenAI-compatible
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Gemini
/v1beta/models/{model}:generateContentPOST -
OpenAI-compatible
/v1/chat/completionsPOST
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Pricing
Flat rate, unit: /1M Tokens
Input
$1.5000 /1M Tokens
Completion
$7.5000 /1M Tokens
Image input
$1.5000 /1M Tokens
Image completion
$6.0000 /1M Tokens
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Selection summary
Quickly judge whether it fits your workload
What is this model good for?
Google image generation and conversational editing model with improved visual quality
Gemini Nano Banana 2.1 is a Google image generation and conversational editing model with improved visual quality, typography, multi-turn consistency, and search-grounded generation at 1K, 2K, and 4K resolutions.
What should you check before using it?
32,768 output tokens
Gemini Nano Banana 2.1 supports reasoning, streaming and vision input. Released 2026-10-06.
Why use it through MixRoute?
Gemini Nano Banana 2.1 takes text and images on one route
Text and image inputs share the same route and the same key. MixRoute serves Gemini Nano Banana 2.1 on the OpenAI-compatible endpoint /v1/chat/completions; point your existing client at https://api.mixroute.ai/v1 with the model ID gemini-nano-banana-2.1 and re-run your integration tests.
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Capabilities & compatibility
Unconfirmed capabilities stay "Unknown," no guesses
Streaming
Gemini Nano Banana 2.1 supports streamed responses.
stream: true streams tokens incrementally, so chat UIs render as they arrive.
Vision input
Gemini Nano Banana 2.1 can process image inputs alongside text.
image_url content part alongside text messages.
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Token cost estimator
Live estimate from this page's pricing, not an actual bill
This model has no cache-read price; caching is not counted
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FAQ
Gemini Nano Banana 2.1 sits alongside grok-imagine-image-2.0, gpt-image-2, gemini-3.1-flash-image in the catalog. Compare them on the dimensions that change your bill and your users’ experience: task quality on your own prompts, latency at your concurrency, context and output limits, and cost per completed task rather than per token.
One endpoint, a testable decision
Test this model and alternate routes with the same request format
Start from a real workload, then let quality, total cost, and failure conditions decide whether to send production traffic.