Nano Banana 2 (Gemini 3.1 Flash Image Preview)
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GoogleGoogleGeminiReleased 2026-02-26

Nano Banana 2 (Gemini 3.1 Flash Image Preview)

66K context$0.500/M input$3.00/M output

Gemini 3.1 Flash Image Preview, also known as 'Nano Banana 2,' is Google's advanced image generation and editing model. It offers professional-level visual quality with fast and cost-efficient inference, enabling complex image creation and iterative edits. The model supports aspect ratio control via the image_config API parameter, making it versatile for various visual tasks.

What is Nano Banana 2 (Gemini 3.1 Flash Image Preview)?

Nano Banana 2 (Gemini 3.1 Flash Image Preview) is an AI model from Google that Agent Mag tracks for pricing, context window, modalities, benchmarks, and API compatibility. Builders can use this page to compare Nano Banana 2 (Gemini 3.1 Flash Image Preview) against other models for agent workflows and production deployments.

Model ID

Gemini 3.1 Flash Image Preview, also known as 'Nano Banana 2,' is Google's advanced image generation and editing model. It offers professional-level visual quality with fast and cost-efficient inference, enabling complex image creation and iterative edits. The model supports aspect ratio control via the image_config API parameter, making it versatile for various visual tasks.

Architecture & Specifications
Tokenizer
Gemini
License
Proprietary
Released
2026-02-26
Modalities
Input
imagetext
Output
imagetext
Supported Parameters
include_reasoningmax_tokensreasoningresponse_formatseedstopstructured_outputstemperaturetop_p
Strengths
  • Pro-level visual quality
  • Fast inference speed
  • Cost-efficient image generation
  • Supports iterative edits
  • Aspect ratio control via API
Limitations
  • Structured output error rate of 22.38%
  • Latency averages over 15 seconds depending on provider
  • Requires user IDs for anonymity
  • Moderation is the responsibility of the developer
Recommended Use Cases
Professional graphic design
Image generation for creative projects
Logo creation
Iterative image editing
Aspect ratio-specific visual tasks

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Data enriched Apr 24, 2026. Pricing from OpenRouter API.